Yanmar Co., Ltd. Patent applications |
Patent application number | Title | Published |
20160123266 | GAS ENGINE - A control unit performs perturbation using the solenoid valve under a specific engine operation condition by a standard fuel gas, by moving the solenoid valve from a predetermined opening degree to a lean side or a rich side while the A/F valve is opened at a predetermined opening degree. During an actual operation in a period in which the operation condition of the gas engine is deemed to be stable, when an output average value b obtained from an upstream oxygen sensor disposed on an exhaust passage of the gas engine deviates from an output target value a of the upstream oxygen sensor set in the control unit under the above operation condition, the control unit adjusts the opening degree of the A/F valve so that the output average value b equals the output target value a. | 05-05-2016 |
20160096426 | INDUSTRIAL VEHICLE - Regarding an industrial vehicle 101 configured to include an engine 1 mounted on a front portion of a travelling machine body 102 and an exhaust gas purification device 2 for purifying exhaust gas of the engine 1, the industrial vehicle 101 is such that the exhaust gas purification device 2 is mounted on an upper portion side of the engine 1, and the engine 1 and the exhaust gas purification device 2 are covered with a hood 114, and a maneuvering seat 117 is arranged on a rear side of the hood 114, and it is an object to suppress heat damage on the exhaust gas purification device 2 itself and the hood 114. Opening holes 160 are formed on right and left bilateral sides of the hood 114, and an introduction fin 166 that tilts in a posture for taking in outside air from an advancing direction is arranged in each opening hole 160. | 04-07-2016 |
20160069240 | EXHAUST GAS PURIFICATION SYSTEM - An exhaust gas purification system comprises an exhaust gas purification device which is arranged in an exhaust gas route of an engine, renewing devices for burning and removing a particulate matter within the exhaust gas purification device, renewal advance notifying means which is actuated in the case that a clogged state of the exhaust gas purification device becomes equal to or more than a prescribed level, and renewal informing means which informs of a fact that the renewing devices are under operation. The renewal advance notifying means is actuated before actuating the renewing devices. | 03-10-2016 |
20160061086 | EXHAUST GAS PURIFICATION SYSTEM - It is an object to make it possible to burn and remove particulate matter without generating runaway even if the particulate matter is excessively accumulated at the time of regeneration of an exhaust gas purification device. A common rail engine and the exhaust gas purification device placed in an exhaust gas path of the engine are provided. A plurality of regeneration controls for burning and removing the particulate matter accumulated in the exhaust gas purification device can be executed. The plurality of regeneration controls include at least non-operation regeneration control for rising exhaust gas temperature by combining post injection (E) and predetermined high speed rotation speed, and recovery regeneration control which can be executed when the non-operation regeneration control fails. In the non-operation regeneration control and the recovery regeneration control, the engine is driven exclusively for burning and removing the particulate matter. The recovery regeneration control is carried out at exhaust gas temperature lower than that of the non-operation regeneration control while taking time longer than that of the non-operation regeneration control. | 03-03-2016 |
20160024752 | ENGINE DEVICE - It is a technical problem to provide an engine device that includes an exhaust gas purification device, which can be efficiently arranged in an engine installation space. The engine is arranged on the lower side of a maneuvering seat, and a flywheel housing is arranged in such a manner as to be positioned on the front portion side of a traveling machine body, and the exhaust gas purification device is arranged on the upper side of the rear of the engine. Also, the engine is coupled with an air cleaner that draws in fresh air on the left side thereof. Furthermore, a hood includes a hood cover configured to be openable/closable in the rear thereof and covers the upper portion of the exhaust gas purification device. | 01-28-2016 |
20160017778 | ENGINE DEVICE OF WORKING VEHICLE - An engine device of a working vehicle is structured such that a first case and a second case can be firmly fixed with a high rigidity by making good use of a frame of an engine room. In the engine device of the working vehicle having the first case which removes particulate matter in exhaust gas of the engine and the second case which removes nitrogen oxide in the exhaust gas of the engine, the first case is provided in the engine room which is inward provided with the engine, via a first case support body, and the second case is provided in the engine room via second case support bodies. | 01-21-2016 |
20160014956 | ELECTRIC WORK VEHICLE - An electric work vehicle | 01-21-2016 |
20150369178 | ENGINE - Provided is an engine that suppresses the occurrence of knocking or an accidental fire, which makes it possible to perform the operations of premixed compression self-ignition. Regarding the present invention, an engine includes a reforming cylinder, which is a fuel reforming device, and the reforming cylinder is connected to an intake pipe and an EGR pipe via a supply pipe and connected to the intake pipe via an exhaust pipe, and a primary fuel injection device is provided that injects fuel to the mixture of intake air and exhaust gas supplied to the reforming cylinder through the supply pipe. | 12-24-2015 |
20150369109 | ENGINE DEVICE - An engine is disposed below an operator's seat in such a manner that a flywheel housing is located at the front of a traveling machine body. An exhaust gas purification device is disposed behind the engine and below a radiator. The engine is connected, on the left side thereof, to an air cleaner for taking in fresh air, and is connected, on the right side thereof, to an exhaust pipe which is connected to the air inlet side of the exhaust gas purification device. | 12-24-2015 |
20150353179 | SHIP STEERING SYSTEM FOR OUT-DRIVE DEVICE - In a ship steering system for an out-drive device including: an out-drive device; a hydraulic actuator configured to turn the out-drive device; a hydraulic controller configured to control the hydraulic actuator; a ship steering device configured to instruct a traveling direction to the hydraulic controller; and an emergency ship steering device capable of at least instructing the out-drive device to turn, the emergency ship steering device is capable of controlling the hydraulic actuator without involving the hydraulic controller. | 12-10-2015 |
20150331397 | POWER TRANSMISSION APPARATUS - The power transmission apparatus may include a battery, a motor generator that is switchable between a driving state and a power generation state, at least a load, an inverter to switch the motor generator to any of the driving state and the power generation state, a charging state detecting means to detect a charged amount C of the battery, an absorbing horsepower detecting means to detect the absorbing horsepower Lp of the load, and a control device to switch the motor generator to any of the power generation state and the driving state by means of the inverter, based on the absorbing horsepower Lp detected by the absorbing horsepower detecting means and the charged amount C of the battery that is detected by the charging state detecting means. | 11-19-2015 |
20150300282 | GAS ENGINE - A gas engine controls an air-fuel ratio in accordance with changes in the composition of fuel gas. The gas engine includes an A/F valve, a solenoid valve, and a control unit to carry out a perturbation process using the solenoid valve. A reference opening degree is specified by adjusting the opening degree of the A/F valve so that the time-average opening degree of the solenoid valve is equal to 50% in a particular engine operating environment created using reference fuel gas. The control unit resets the opening degree of the A/F valve to a value that is lower than the reference opening degree if the valve opening degree is lower than the specified reference opening degree and resets the opening degree of the A/F valve to a value that is higher than the reference opening degree if the valve opening degree is higher than the specified reference opening degree. | 10-22-2015 |
20150240749 | ENGINE APPARATUS - An object in mounting an exhaust gas purifier to an engine as a component of the engine is to prevent a plurality of detection members, which are configured to detect a state of the exhaust gas purifier, from being disadvantageously affected by the heat of the engine and the exhaust gas purifier. An engine apparatus includes the exhaust gas purifier configured to purify exhaust gas from the engine. The exhaust gas purifier is mounted above the engine through a mounting base. A heat conductive bracket is disposed on an outer surface of the exhaust gas purifier that is closer to the engine. The plurality of detection members, which are configured to detect of the state of the exhaust gas purifier, are attached to an upper surface and a side surface of the heat conductive bracket. | 08-27-2015 |
20150226101 | ENGINE DEVICE - An engine device in which an exhaust gas purification device can be disposed without substantially increasing mounting width dimensions (height, lateral width, front and rear width) of an engine. The engine device includes the exhaust gas purification device connected to an exhaust manifold of the engine, an oil pan disposed on a bottom of the engine, a support body for linking the exhaust gas purification device to the oil pan, so that the exhaust gas purification device is supported by the oil pan. | 08-13-2015 |
20150184913 | ENGINE DRIVEN HEAT PUMP - An engine driven heat pump includes a temperature switch that opens and closes in accordance with the peripheral temperature of an inverter and a control device that includes a signal reception unit, and a temperature open contact point that opens at a predetermined temperature or higher is provided in the temperature switch, and an abnormal-time open contact point that opens when abnormality occurs in a battery charging circuit is provided in the battery charging circuit, and a signal generation contact point that generates a state signal indicating a state of the inverter is provided in the inverter, and the temperature open contact of point the temperature switch, the abnormal-time open contact point of the battery charging circuit, and the signal generation contact point of the inverter are connected in series with respect to the signal reception unit of the control device. | 07-02-2015 |
20150151635 | VEHICLE - A vehicle is provided with a clutch pedal which, when depressed, interrupts the transmission of drive power from the engine to the drive wheels. The clutch pedal is constituted by a pedal section and an arm having the pedal section attached to the lower part thereof. The arm can swing about the upper part thereof and is connected to a clutch disk within a transmission through a link mechanism. An elastic member is provided between the arm and a machine body. The vehicle is configured in such a manner that when the clutch pedal is depressed, the elastic member acts in a pressing-back direction until the clutch pedal reaches a first predetermined position, the pressing-back direction being the direction in which the elastic member presses back the arm; when the clutch pedal is depressed beyond the first predetermined position, the elastic member acts in the direction in which the arm is pressed in; and when the clutch pedal is depressed up to a second predetermined position, the clutch disk is separated. One end of the elastic member is mounted to the intermediate position of the arm, and the other end of the elastic member is mounted to the machine body. | 06-04-2015 |
20150114154 | DEVICE FOR DECELERATING AND REVERSING SHIP - The front sides of pinions are rotatably supported by a first case via first taper roller bearings, and the back sides of the pinions are rotatably supported by a second case via second taper roller bearings, and the back sides of input shafts are rotatably supported by a case cover via third taper roller bearings, and clutches and input gears are stored in the case cover, and sleeves are interposed between the first taper roller bearings and the front side of the pinions, and the pinions are configured to be inserted and extracted into/from the sleeves. | 04-30-2015 |
20150107677 | FUEL SUPPLY APPARATUS AND FUEL SUPPLY METHOD - The temperatures of fuel oils stored in fuel tanks | 04-23-2015 |
20150102602 | POWER GENERATING DEVICE - Provided is a power generating device capable of effectively cooling an expander, a power generator, and a control device even in the outdoors. In the power generating device, an expander driven by steam, a power generator coupled with and driven by the output shaft of the expander, and a control device are placed on a base and housed in a storage box. The storage box has a partition member provided upright from the base. The control device is housed in one side partitioned by the partition member, and the expander and the power generator are housed in the other side. The base is provided with a ventilation path for taking outside air into the storage box, and the ceiling portion of the storage box is provided with a net plate and a protective roof provided above and around the net plate with a predetermined space there between to enable air to be discharged outside. The expander and the power generator are installed securely on a frame provided upright on the base and set apart from the base. | 04-16-2015 |
20150044775 | Measurement Method and Device, For Determining Degree of Engine Oil Dilution by FAME - For checking engine oil, especially containing rate of FAME (Fatty Acid Methyl Ester), we provide a measuring device including a cylindrical and upright analysis vessel having a reading scale with which a surface boundary is measured. In the vessel, the engine oil is mixed with reagents including alcohol(s) and a demulsifier. And the decreased volume is checked as volume of the FAME contained in the engine oil. | 02-12-2015 |
20150041228 | AGRICULTURAL TRACTOR - An agricultural tractor seeks to simplify a shaft support structure in a lower portion side of an elevating hydraulic cylinder which is externally installed to a rear side of a transmission case. The agricultural tractor of the present invention is provided with a travel machine body to which an engine and the transmission case are mounted, a lift arm which is provided in a rear portion side of an upper surface of the transmission case so as to freely oscillate up and down, the elevating hydraulic cylinder which oscillates up and down the lift arm, and rear axle cases which protrude laterally outward from the transmission case. An upper portion side of the elevating hydraulic cylinder is connected to the lift arm, and a lower portion side of the elevating hydraulic cylinder is supported to the travel machine body. The lower portion side of the elevating hydraulic cylinder is axially supported rotatably via a laterally directed pivot pin shaft by a hitch portion which is integrally formed in at least one of the right and left rear axle cases so as to protrude backward, and a bracket portion which is integrally formed in a rear surface of the transmission case so as to protrude backward. | 02-12-2015 |
20150034046 | ENGINE - An engine of the invention includes an engine main unit having cylinders, an intake line, an exhaust line, a supercharger, a turbo sensor detecting a rotational speed of the supercharger, a control device controlling, based on signal from the turbo sensor, an operating state of the engine main unit that has a correlation with the rotational speed of the supercharger, and a crank angle sensor detecting a rotation angle of a crankshaft. The control device recognizes timings at which the cylinders are in a top dead center state based on detection signals of the crank angle sensor and, also, makes a disconnection judgment for the turbo sensor at non-top dead center timings that are within one combustion cycle of the engine main unit and at which none of the plurality of cylinders are in a top dead center state. | 02-05-2015 |
20140378251 | BELT TYPE CONTINUOUSLY VARIABLE TRANSMISSION - An input pulley, an output pulley, a belt wound across the pulleys, a hydraulic cylinder provided to the input pulley, and a hydraulic servo mechanism that controls an operation of the hydraulic cylinder are provided. The hydraulic servo mechanism includes: a valve chest facing an input side movable sheave; a servo spool slidably inserted in the valve chest, and switches an oil passage in communication with a hydraulic chamber of the hydraulic cylinder; and a feedback spool disposed in such a manner that one end comes into contact with the input side movable sheave a bearing disposed in between, and configured to switch the oil passage to maintain a slid position of the input side movable sheave at a position corresponding to a slid position of the servo spool. | 12-25-2014 |
20140373721 | EXHAUST GAS PURIFICATION DEVICE - Provided is smooth lifting up an exhaust gas purification device in the case of assembling the exhaust gas purification device in an engine. The exhaust gas purification device is provided with a plurality of filter bodies which purify exhaust gas discharged by the engine, and a purification casing which has each of the filter bodies built-in and is constructed by a plurality of purification cases. The purification casing is constructed by arranging each of the purification cases in an exhaust gas moving direction and connecting the purification cases by thick plate flanges. A suspension body is integrally formed in the thick plate flange. | 12-25-2014 |
20140369863 | SHIP ENGINE - A ship engine includes a first turbocharger, a first intercooler, a second turbocharger, and a second intercooler. The first turbocharger is arranged at one end of the ship engine with respect to a crank axis direction. The first intercooler and the second turbocharger are arranged in an end portion of the ship engine with respect to a device width direction. The first intercooler and the second turbocharger are arranged side by side in the crank axis direction. The second intercooler is arranged at the other end (at the side opposite to the side where the first turbocharger is arranged) of the ship engine with respect to the crank axis direction. | 12-18-2014 |
20140364018 | Ship Steering Device And Ship Steering Method - A ship steering device capable of steering a hull in an intended direction by correcting an unintended rotation that occurs during an oblique sailing operation regardless of the type and size of the hull. A ship steering device is provided with an elevation angle sensor for detecting the elevation angle α of a hull, a hull speed sensor for detecting the speed V of the hull, a storage means storing the relation among the elevation angle α of the hull, the speed V of the hull, and a correction value K, and a calculation means serving as a correction value determination means, and an operation amount by which a joystick is operated such that the hull does not turn in the state in which the hull is obliquely sailed is determined by the calculation means and used as the correction value K. | 12-11-2014 |
20140360172 | ENGINE DEVICE - It is an object of the present invention to provide an engine device in which a support structure of an exhaust throttle device can be made as a high rigidity structure, and it is possible to prevent the exhaust throttle device from being heated by radiation heat from peripheries of the exhaust throttle device. The engine device of the invention includes an engine ( | 12-11-2014 |
20140352474 | ROTATION POSITION DETECTION MECHANISM FOR TRUNNION AXIS - The invention is provided with an operation lever one end side of which is supported by the trunnion axis so as to be incapable of relative rotation and which is configured to be capable of rotating the trunnion axis, a follower lever a middle portion of which is supported by the trunnion axis so as to be capable of free relative rotation, and a detection switch. For the operation lever, a link for operating the operating lever is connected to the middle portion thereof so that, when rotated by the link, the other side end portion of the operating lever comes into tactile contact with other side end portion of the follower lever so as to rotate the follower lever in order to on/off the detection switch. | 12-04-2014 |
20140324279 | REMOTE MONITORING TERMINAL DEVICE FOR MOBILE WORK VEHICLE OR VESSEL - Disclosed is a remote monitoring terminal device for a mobile work vehicle or vessel, capable of informing the user of maximum, minimum, and average values for each sensor and a turn-on count of a switch. The remote monitoring terminal device includes: connection terminals; a data abridging control section for computing minimum, maximum, and average values of data collected over a period from a startup to the latest data acquisition and of actual operation data on actual operation and an occurrence count and durations of a predetermined event, on the basis of operation-state data acquired via the connection terminals and stored in a data storage section; and a communications section. In response to a manual turn-off of a startup switch of the mobile work vehicle or vessel, the data abridging control section transmits data stored in the data storage section, to the remote monitoring device via the communications section. | 10-30-2014 |
20140311448 | GAS ENGINE, GAS HEAT PUMP SYSTEM AND COGENERATION SYSTEM USING THE GAS ENGINE, AND METHOD FOR CONTROLLING THE GAS ENGINE - A gas engine | 10-23-2014 |
20140310412 | MANAGEMENT SERVER FOR REMOTE MONITORING SYSTEM - The management server causes an output section to output a startup date and time, shutdown date and time, minimum, maximum, and average values, and an occurrence count and durations of a predetermined event, for each of the operation time periods from the startup to shutdown in a unit of the remote monitoring terminal device, and causes the output section to output the startup date and time, shutdown date and time, and a movement locus of the mobile work vehicle or vessel based on the location information, for each of the operation time periods from the startup to shutdown in the unit of the remote monitoring terminal device. | 10-16-2014 |
20140257625 | REMOTE MONITORING TERMINAL DEVICE FOR MOBILE WORK VEHICLE OR VESSEL - Disclosed is a remote monitoring terminal device including: connection terminals (T, . . . ); a data storage control section for storing, in a data storage section at predetermined interval (TA), only a predetermined number of latest data sets in data fed via the connection terminals (T, . . . ); and a communications section, wherein in response to an occurrence of a predetermined event in the mobile work vehicle or vessel, the data storage control section stores in the data storage section the predetermined number of data sets including a data set obtained upon the occurrence of the predetermined event and transmits the predetermined number of data sets stored in the data storage section, together with information indicating the predetermined event, to a remote monitoring device via the communications section. | 09-11-2014 |
20140247138 | REMOTE MONITORING TERMINAL DEVICE FOR MOBILE WORK VEHICLE OR VESSEL - Disclosed is a remote monitoring terminal device | 09-04-2014 |
20140244100 | REMOTE MONITORING TERMINAL DEVICE FOR MOBILE WORK VEHICLE OR VESSEL - Disclosed is a remote monitoring terminal device including: connection terminals (T, . . . ); a data storage control section for storing, in a first data storage section at predetermined intervals, only a predetermined number of latest data sets fed via the connection terminals (T, . . . ); a sampling data storage control section for storing in a second data storage section sampling data obtained by sampling the data stored in the first data storage section at sampling intervals (TC); and a communications section, wherein the sampling data storage control section transmits the sampling data stored in the second data storage section to the remote monitoring device via the communications section in response to a request from the remote monitoring device or in response to an end of a work. | 08-28-2014 |
20140209045 | Engine Generator - The purpose is to provide an engine generator | 07-31-2014 |
20140179177 | SHIP MANEUVERING DEVICE - A ship maneuvering device rotates a propeller at a lower rotational frequency than the rotational frequency of the minimum idling speed of an engine. A control device has a crawling speed navigation mode. A crawling speed navigation mode button that selects whether or not to execute the crawling speed navigation mode is connected to the control device. When the crawling speed navigation mode is selected, and the amount of operation of a joystick lever is at or beneath a baseline amount of operation Ms, the control device causes the rotational frequency N of the engine to be the rotational frequency Nlow of the minimum idling speed, and in accordance with the amount of operation of the joystick lever, varies the duty ratio D, which is the fraction of time T | 06-26-2014 |
20140174331 | SHIP MANEUVERING DEVICE - Provided is a ship maneuvering device that can increase operation sensitivity and enables smooth operation when simultaneously operating the rotation component determination unit and the oblique sailing component determination unit of an operation means. In the ship maneuvering device | 06-26-2014 |
20140156124 | SHIP STEERING DEVICE AND SHIP STEERING METHOD - A ship steering device capable of steering a hull in an intended direction by correcting an unintended rotation that occurs during an oblique sailing operation regardless of the type and size of the hull. A ship steering device is provided with an elevation angle sensor for detecting the elevation angle α of a hull, a hull speed sensor for detecting the speed V of the hull, a storage means storing the relation among the elevation angle α of the hull, the speed V of the hull, and a correction value K, and a calculation means serving as a correction value determination means, and an operation amount by which a joystick is operated such that the hull does not turn in the state in which the hull is obliquely sailed is determined by the calculation means and used as the correction value K. | 06-05-2014 |
20140143192 | PREDICTION DEVICE, PREDICTION METHOD, AND COMPUTER READABLE MEDIUM - For each item, a factorial effect value is derived that represents the SN ratio of the prediction object to each data including the data of the item relative to the SN ratio of the prediction object to each data excluding the data of the item. The strength of the SN ratio of the comprehensive estimated value to the data of a plurality of items selected in descending order of the derived factorial effect value is calculated for each value of the number of items. On the basis of the calculated SN ratio of the comprehensive estimated value, the number of items is determined. In descending order of the derived factorial effect value, items in the determined number of items are selected. On the basis of the data of the selected items, a change of the prediction object is predicted by using a method such as a T-method. | 05-22-2014 |
20140137527 | Mobile Electric Work Machine - Provided is a mobile electric work machine that can avoid overload operation of working parts. The mobile electric work machine is an electric lawn mowing work machine that carries out work by working parts driven by electric power supplied by blade inverters while being run by a running part. The blade rotational velocity of a blade or the rotational velocity of a blade is controlled such that the work load on the working parts is constant on the basis of blade inverter current values from blade inverters. | 05-22-2014 |
20140136299 | PREDICTION DEVICE, PREDICTION METHOD, AND COMPUTER READABLE MEDIUM - For a plurality of items allowed to serve as variable factors of the prediction object, for each item, a factorial effect value is derived that represents the SN ratio of the prediction object to each data including the data of the item relative to the SN ratio of the prediction object to each data excluding the data of the item. The strength of the SN ratio of the comprehensive estimated value to the data of a plurality of items selected in descending order of the derived value is calculated for each value of the number of items. On the basis of the SN ratio of the comprehensive estimated value, the number of items is determined. In descending order of the derived factorial effect value, items in the determined number of items are selected. The selected items are outputted as a prediction result. | 05-15-2014 |
20140102065 | ELECTRIC WORK MACHINE - A battery car | 04-17-2014 |
20140083084 | Engine System - To provide a configuration that can discharge condensed water remaining in an exhaust gas passage in an engine in which a catalyst is placed in the exhaust gas passage. An engine system ( | 03-27-2014 |
20140077004 | ENGINE DEVICE - A problem exists that in the case that a prior injection (a pilot injection B or a previous injection C) before a main injection A is executed when an engine is driven at a low load, a defective ignition and a defective combustion tend to be caused, an amount of carbon monoxide (CO) in an exhaust gas becomes excessive, and the carbon monoxide is discharged as white smoke. An engine device is mounted to a working vehicle, and a common rail type fuel injection device which injects fuel to the engine at multiple stages during one combustion cycle. The common rail type fuel injection device does not execute the prior injections B and C coming before the main injection A in the case that a load applied to the engine is in a low load state in which a load is lower than that at a working time by the working vehicle. | 03-20-2014 |
20140048051 | Method of Determining Correction Amount of Opening Degree of EGR Valve, Method of Controlling Opening Degree of EGR Valve, and Engine - A method determines a correction amount of an EGR valve opening degree. A basic correction amount map is generated indicating a correlation between rotating speed, load factor, and the correction amount, while the opening degree is maintained at a reference opening degree and the EGR rate is maintained at a target EGR rate, based on correction amounts obtained for mutually different individual combinations of the rotating speed and the load factor. Estimated values of the correction amounts not contained in the basic map are acquired by estimating the distribution of the amounts not in the basic map based on a distribution trend. An extended correction amount map is generated indicating a correlation between the estimated values of the rotating speed, the load factor, and the correction amount while the opening degree is maintained at a reference opening degree and the EGR rate is maintained at a target rate. | 02-20-2014 |
20140013785 | COGENERATION SYSTEM - In a cogeneration system | 01-16-2014 |
20140001854 | ELECTRICALLY-DRIVEN WORK MACHINE | 01-02-2014 |
20130332035 | DRIVE SYSTEM CONTROL DEVICE FOR WORKING VEHICLE - In a working vehicle, it is possible to achieve a downsizing of an engine by securing an output torque in a low rotating region of the engine without using any supercharger. In the working vehicle having the engine mounted to a travel machine body, a common rail type fuel injection device which injects fuel to the engine, and a continuously variable transmission which shifts power from the engine, a rotating speed N of the engine is limited to two kinds, N#1 and N#2. Further, a change gear ratio of the continuously variable transmission is changed and regulated in such a manner as not to change a vehicle speed of the travel machine body before and after changing the rotation speed N whichever of the two kinds N#1 and N#2 the rotating speed N of the engine is changed to. | 12-12-2013 |
20130327295 | Gas Engine System with Detection Function of Abnormality Occurrence of Gas Pressure Detection Mechanism - A gas engine system has a control unit including: a first determination section for determining, as a first determination, whether the gas pressure is a low pressure less than a predetermined pressure, while the control device recognizes the gas valve is closed; a second determination section for determining, as a second determination, whether the gas pressure is a high pressure equal to or more than the predetermined pressure, while the control device recognizes that the gas valve is open, if the first determination determines the gas pressure is the low pressure; a start-up section for performing the first and second determinations before start of engine operation when receiving a start-up command; and an operation start section for opening the valve and starting the engine, if the first determination determines the gas pressure is the low pressure, and if the second determination determines the pressure is the high pressure. | 12-12-2013 |
20130316637 | Packaged Engine Working Machine - There is provided a packaged engine working machine including, in a lower space of a package an electrical component storage box adapted to be impervious to heat from the engine and intrusion of dust or the like. In a packaged engine working machine in which an engine and a working machine driven by the engine are disposed in a lower space of a package, a storage box for storing a non-heat-generating electrical component included in electrical components for the engine and working machine, and a ventilation duct having a ventilation fan for sucking outside air into the lower space are each disposed in the lower space, and the packaged engine working machine includes an introduction path through which the ventilation duct and the storage box are communicated with each other, and the outside air sucked by the ventilation fan is partially guided into the storage box. | 11-28-2013 |
20130311526 | DATA COLLECTING DEVICE AND SYSTEM COMMUNICATING WITH SAME - A data collecting device | 11-21-2013 |
20130221751 | POWER TRANSMISSION APPARATUS - The power transmission apparatus may include a battery, a motor generator that is switchable between a driving state and a power generation state, at least a load, an inverter to switch the motor generator to any of the driving state and the power generation state, a charging state detecting means to detect a charged amount C of the battery, an absorbing horsepower detecting means to detect the absorbing horsepower Lp of the load, and a control device to switch the motor generator to any of the power generation state and the driving state by means of the inverter, based on the absorbing horsepower Lp detected by the absorbing horsepower detecting means and the charged amount C of the battery that is detected by the charging state detecting means. | 08-29-2013 |
20130218425 | WORKING VEHICLE - The working vehicle may include a working apparatus in which an attachment is attachably mounted, a flow rate limitation setting means to set the maximum flow rate of hydraulic oil, an engine revolution sensor, a cam plate angle sensor, a valve opening degree sensor to measure a present flow rate of the hydraulic oil, a switching valve to switch between a single acting type and a double acting type, a display, a main controller to connect the flow rate limitation setting means, the engine revolution sensor, the cam plate angle sensor, the valve opening degree sensor, the switching valve, and the display apparatus. The maximum flow rate and the present flow rate, which are set by the flow rate limitation setting means, may be simultaneously displayed on the display apparatus. | 08-22-2013 |
20130212995 | RIDING MOWER - A riding mower includes two (left and right) mower blades, a mower deck, and two motors for rotating the mower blades. The mower blades are provided adjacent to each other, and one of the two mower blades is disposed obliquely in front of the other mower blade. In a plan view, the left mower blade is rotated clockwise and the right mower blade is rotated counterclockwise. A combined air flow is generated in the mower deck, and mowed grass is discharged to the outside of the mower deck together with the combined air flow. The rotational speed of the forward mower blade is set higher than the rearward mower blade. The speed of the air flow generated by the forward mower blade is higher than the rearward mower blade. The combined air flow is generated and the mowed grass is discharged rearward of the mower deck. | 08-22-2013 |
20130211655 | POWER TRANSMISSION APPARATUS - The power transmission apparatus may include a control device to carry out idling stop control in such a manner that, when it is detected that an operating means is not operated for a predetermined time or more, an engine is stopped, and a clutch is disconnected, and the supply of the electric power from a battery to a motor generator is interrupted, and when it is detected that the operating means is operated afterwards, the engine is started by a cell motor, and the supply of the electric power from the battery to the motor generator is permitted, and the clutch is connected after the number of revolutions Ne of the engine reaches a predetermined value or more, and the supply of the electric power from the battery to the motor generator is interrupted. | 08-15-2013 |
20130173123 | DRIVE SYSTEM CONTROL DEVICE FOR WORKING VEHICLE - In a working vehicle | 07-04-2013 |
20130172149 | SHIP PROPULSION DEVICE - A ship propulsion device is configured so that a control device operates an engine at a first engine speed when a clutch is in a disengaged state; so that, based on the input of an input device, the control device changes the state of the clutch from the disengaged state to a partially engaged state and operates the engine at a second engine speed that is higher than the first engine speed; so that, based on the detection of a rotational speed detection device, the control device operates the engine at an engine speed that is lower than the second engine speed; and so that, based on the input of an input device, the control device changes the state of the clutch from the partially engaged state to an engaged state. | 07-04-2013 |
20130166163 | DRIVE SYSTEM CONTROL DEVICE FOR WORKING VEHICLE - In a working vehicle provided with an engine which is mounted to a travel machine body, a common rail type fuel injection device which injects fuel to the engine, a continuously variable transmission which shifts power from the engine, and the exhaust gas purification device which is arranged in an exhaust system of the engine, in the case that an engine operating point Q relating to a rotating speed N and a torque T of the engine is in a low-speed and low-torque side incapable of self-renewing the exhaust gas purification device, the engine operating point Q is changed to a high-speed and low-torque side capable of self-renewing the exhaust gas purification device, and a change gear ratio of the continuously variable transmission is changed and regulated in such a manner that a vehicle speed V of the travel machine body is not changed. | 06-27-2013 |
20130125753 | Method and Apparatus for Cleaning a Filter for Removing Particulate Matter - An apparatus | 05-23-2013 |
20130037009 | Exhaust Manifold - An exhaust manifold maintains the EGR ratio constant irrespective of a change in shape of the exhaust manifold and includes exhaust gas inlet sections connected to the exhaust ports of respective cylinders of the engine; a main pipe section configured so that exhaust gas entering from the exhaust gas inlet sections is collected inside the main pipe section; an EGR gas taking-out section for extracting, as EGR gas, a part of the exhaust gas; and an exhaust gas discharge section for discharging the exhaust gas. The main pipe section has formed thereon a curved section provided between the exhaust gas inlet sections and curved in a shape protruding to the side opposite the exhaust gas inlet sections. The curved section has a recess which is formed by causing a portion of the outer peripheral surface of the curved section to be recessed toward the inside of the main pipe section. | 02-14-2013 |
20130036913 | DESICCANT AIR CONDITIONER - Provided is an air conditioning system capable of high efficiency operation and a compact structure. The air conditioning system is provided with a desiccant and a heat pump. The desiccant absorbs air moisture and the heat pump employs the treating air as a low-temperature heat source while employing the reproducing air as a high-temperature heat source to supply reproducing air with heat for reproducing the desiccant. Heat exchange occurs between the reproducing air before being heated by the heat pump. | 02-14-2013 |
20130008528 | EXHAUST GAS PURIFICATION DEVICE - An exhaust gas purification device capable of enhancing handling operability such as maintenance of an engine includes two gas purification bodies which purify exhaust gas discharged from the engine, inner cases in which the gas purification bodies are incorporated, and outer cases in which the inner cases are incorporated. The outer cases are arranged side by side in a moving direction of exhaust gas and connected to each other. One of the adjoining inner cases is inserted into the other inner case to form a double-layer structure. A loosely-fitting gap is formed between an inner side surface of the one inner case and an outer side surface of the other inner case. | 01-10-2013 |
20130003418 | PULSE PATTERN GENERATING CONFIGURATION FOR THREE-PHASE CURRENT SOURCE ELECTRIC POWER CONVERTER - A pulse pattern generating configuration for a three-phase current source electric power converter is provided that ensures a minimal switching loss regardless of the level of power factor, and thus improves the electric power conversion efficiency. | 01-03-2013 |
20130000286 | ENGINE EXHAUST GAS HEAT EXCHANGER AND ENERGY SUPPLYING DEVICE USING THE SAME - Regarding an engine exhaust gas heat exchanger that allows exhaust gas to collide with a coolant passage through apertures, a configuration that can improve efficiency of heat exchange is provided. The engine exhaust gas heat exchanger | 01-03-2013 |
20120330531 | ENGINE DEVICE - Provided is an engine device which improves a general-purpose property of an ECU carrying out a drive control of an engine and a regeneration control of a DPF. The engine device is provided with an exhaust gas purifying device which is arranged in an exhaust route of the engine, the ECU which controls a drive of the engine, and a variable memory means which stores a general-purpose regeneration program selectively executing a plurality of regeneration modes with respect to the exhaust gas purifying device and a flag table corresponding to an optional regeneration mode, and is rewritable. The ECU executes the general-purpose regeneration program in accordance with a regeneration mode which is selected on the basis of the flag table. | 12-27-2012 |
20120324871 | System of Treating Exhaust Gas of Engine - In order to relief a sudden change of engine sound during the transition to recovery control of a particulate removing filter or during returning from the recovery control, a system of treating exhaust gas of an engine includes an exhaust-gas particulate removing filter in an exhaust path, closes down the opening of an inlet throttle valve or an exhaust throttle valve to a recovery opening smaller than a normal opening during recovery of the particulate removing filter, and returns the opening from the recovery opening to the normal opening after the recovery of the particulate removing filter. The opening of the inlet throttle valve or the exhaust throttle valve during the closing process from the normal opening to the recovery opening and during the returning process from the recovery opening to the normal opening is changed at a gradually decreasing or gradually increasing rate of change of the opening. | 12-27-2012 |
20120321496 | FUEL INJECTION PUMP - A fuel injection pump is provided which can be manufactured without an increase in the manufacturing cost and which is configured so that the sealing performance of an electromagnetic spill valve can be maintained with minimum maintenance cost. | 12-20-2012 |
20120217071 | WORKING VEHICLE - A working vehicle is structured to maintain a ride quality for an operator on a control seat. Provided are a travel machine body which mounts an engine, front wheels on the machine body, a track frame on the machine body, right and left travel crawlers installed on the track frame, a rear axle which transmits a rotating force to the travel crawler, and oscillation supporting point shafts which support the track frame on the machine body so as to freely oscillate. In the case that the rear axle and the oscillation supporting point shafts are provided so as to be spaced, the oscillation supporting point shafts are arranged just below an axle case to which the rear axle is pivoted, and the track frame is connected to the axle case via link members provided in the oscillation supporting point shafts. | 08-30-2012 |
20120195727 | Work Vehicle - A tractor includes booms, lift cylinders, a hitch, dump cylinders, a magnetic valve, a speed-up circuit, and a speed-up restricting arm. The lift cylinders swing the booms upward and downward by an operating oil being supplied thereto. The hitch is provided to the booms to allow an implement to be attached thereto. The dump cylinders swing the implement upward and downward by the operating oil being supplied thereto. The magnetic valve switches between supplying the operating oil to the dump cylinders and supplying the operating oil to a grab cylinder provided in the implement. The speed-up circuit is able to perform a speed-up operation for increasing the flow rate of the operating oil supplied to the magnetic valve. The speed-up restricting arm is arranged near the speed-up circuit. The speedup restricting arm is brought into contact with a contact member attached to an input member for switching an operation of the speed-up circuit, to thereby restrict the speed-up operation, so that a speed-up of the grab cylinder is prevented. | 08-02-2012 |
20120173124 | ENGINE CONTROL APPARATUS - An engine control apparatus in which a fuel injection apparatus injects a fuel to an engine; detecting means detects a drive state of the engine, and an ECU controls actuation of the fuel injection apparatus on the basis of a detection information of the detecting means and a specific output characteristic data of the engine, wherein compensating means for compensating the output characteristic data is provided, and the ECU is structured such as to compute a limit torque value on the basis of a result of compensation of the output characteristic data by the compensating means and the detection information of the detecting means, and actuate the fuel injection apparatus in correspondence to the limit torque value. | 07-05-2012 |
20120153637 | ENGINE SYSTEM - To provide an engine system with which in a case where a power supply voltage whose specification is to be changed is higher than an expected voltage, the specification of the power supply voltage from an alternating-current power supply can be changed at low cost without providing an additional transformer.
| 06-21-2012 |
20120147512 | SURGE PROTECTION CIRCUIT IN THREE-PHASE FOUR-WIRE CIRCUIT - In a surge protection circuit in a three-phase four-wire circuit, a first three-phase three-wire surge module includes terminals respectively coupled to a first phase R, a second phase S, a third phase T, and a fifth phase E. A single-phase two-wire surge module includes terminals respectively coupled to one phase R among the first phase R, the second phase S, and the third phase T, to a fourth phase N, and to the fifth phase E. The second three-phase three-wire surge module includes terminals respectively coupled to the two phases S and T among the first phase R, the second phase S, and the third phase T, to the fourth phase N, and to the fifth phase E. The two phases S and T are not coupled to the single-phase two-wire surge module. | 06-14-2012 |
20120146465 | ENGINE SYSTEM IN WHICH TRANSFORMER IS ARRANGED IN INDEPENDENT VENTILATION PATH - According to the present invention, even in the case of addition of a transformer for using an engine system with an AC power supply different from the expected voltage of an electrical device, there is substantially no change in the thermal balance in a package due to the presence or absence of the transformer. In the present invention, an engine | 06-14-2012 |
20120126618 | DC-DC CONVERTER CIRCUIT - There is provided a DC-DC converter circuit with which conduction loss between switching elements is lower than in the conventional art, which affords an increase in power conversion efficiency. A DC-DC converter circuit includes a first switching element including a first semiconductor switch and a first diode, a second switching element including a second semiconductor switch and a second diode, an inductor connected between the cathodes of the first and second diodes, and a third switching element and a fourth switching element provided so as to face in mutually opposite directions on the anode sides of the first and second, wherein a first voltage supply is connected between the cathode side of the first diode and the anode side of the second diode, and a second voltage supply is connected between the anode side of the first diode and the cathode side of the second diode. | 05-24-2012 |
20120099352 | POWER GENERATION SYSTEM - A power generation system is provided that implements an efficient, labor-saving system interconnection in which an engine generator system, an external power supply system, and a capacitor are connected in parallel to each other, without the conventional practice to change the configuration of the engine generator system or provide an additional circuit. A power generation system implements a system interconnection in which an engine generator system, an external power supply system, and a capacitor are connected in parallel to each other. The power generation system includes discontinuing means for discontinuing direct-current voltage control by which a direct current voltage of the capacitor is controlled when electric power from a generator is supplied to the capacitor while direct current electric power that an external power supply supplies is lower than demand power that a power generation system is supposed to supply. | 04-26-2012 |
20120097460 | HYDRAULICALLY-POWERED WORKING VEHICLE - A hydraulically powered working vehicle includes a turning section provided at an upper side of a travel unit capable of turning, and hydraulic circuits for the working vehicle. The hydraulic circuit for the working vehicle has a first actuator group including a one side traveling motor, a first variable capacity pump for driving the first actuator group, a second actuator group including an other side traveling motor and a turning motor, and a second variable capacity pump for driving the second actuator group. The second variable capacity pump is set so that a maximum value for discharge capacity per unit time becomes large compared to that of the first variable capacity pump. | 04-26-2012 |
20120097022 | PUMP UNIT - A pump unit includes a variable capacity pump, and a balanced piston mechanism having a piston body, connected to an operation section of a variable swash plate, provided inside a cylinder, capable of sliding in an axial direction. The balanced piston mechanism has first, second and third pressure receiving chambers provided in the cylinder. Primary side and the secondary side working fluid pressures of an actuator switching valve are respectively introduced to the first receive pressure chamber and the second pressure receiving chamber, and a set pressure that has been previously set, corresponding to a working fluid differential pressure arising before and after passing through the actuator switching valve, in a steady state of the operating position of the actuator switching valve is introduced to the third pressure receiving chamber. | 04-26-2012 |
20120079815 | DIESEL ENGINE - A diesel engine is configured to be optionally set either to a low fuel consumption mode in which the amount of fuel consumption is reduced or to a low noise mode in which the noise is reduced so that a continuous regeneration mode is automatically selected when the output value of the diesel engine is greater than a predetermined value, the estimated amount of accumulation of particulate matter collected in a DPF is greater than or equal to a predetermined value, a forced regeneration mode is automatically selected when the output value of the diesel engine is less than the predetermined value and the estimated amount of accumulation of particulate matter collected in the DPF is greater than the predetermined value when either the continuous regeneration mode or forced regeneration mode is manually selected, control is started depending on the selected mode. | 04-05-2012 |
20120074912 | INVERTER GENERATOR - A control circuit (microcomputer) is provided in each of two inverter portions. Magnitude of a target waveform signal corresponding to a voltage to be output by each of the inverter portions is varied according to an operation state. The number of revolution of the engine is adjusted according to the larger one of the effective powers output from the two inverter portions. To cope with a temporary output shortage from the AC generator, the output voltage is temporarily lowered and then the output voltage is restored after waiting for the number of revolution of the engine increases. | 03-29-2012 |
20120058854 | TRANSMISSION DEVICE FOR WORK VEHICLES - Disclosed is a transmission device for work vehicles, said transmission device being capable of being used with high-horsepower engines, without an accompanying loss of power transmission efficiency or fuel economy. The transmission device is provided with: an input shaft ( | 03-08-2012 |
20120046835 | Vehicle and Feedback Control Method - A vehicle capable of easily translating in an arbitrary direction. A vehicle comprising: wheels composed of two front wheels and two rear wheels; four steering actuators connected to the wheels, respectively, and steering the wheels; four drive actuators connected to the wheels, respectively, and driving the wheels; a joystick ( | 02-23-2012 |
20120037121 | ENGINE - An engine includes a head cover covering an upper part of a cylinder head to accommodate a valve gear mechanism and an injector. The head cover is separatable into a lower cover body and an upper cover body detachable from and attachable to the lower cover body. The lower cover body includes a fuel pipe and a relay connector. Through the fuel pipe, fuel is supplied to the injector. The fuel pipe penetrates through the lower cover body. The relay connector is configured to relay power supply from outside the head cover. The relay connector is attached to the lower cover body. One end side of an injector harness disposed in the head cover is coupled to a terminal portion of the injector. Another end side of the injector harness is coupled to the relay connector. | 02-16-2012 |
20120023914 | Exhaust Purification Apparatus - Disclosed is an exhaust purification apparatus which comprises: a first processing unit ( | 02-02-2012 |
20120016570 | Engine Governor - An engine governor ( | 01-19-2012 |
20120006009 | Exhaust Purification Device For Internal Combustion Engine - Provided is an exhaust purification device for an internal combustion engine, wherein the operation of an internal combustion engine can be prevented from being maintained when a particulate filter is melted. An exhaust purification device ( | 01-12-2012 |
20110320105 | Electronically Controlled Diesel Engine - An object is to provide an electronically controlled diesel engine capable of inhibiting the drastic increase of the fuel injection quantity from the fuel injection quantity before acceleration without the measurement of the relation between the number of revolutions of an engine, boost pressure, and the upper smoke limit of the fuel injection quantity. An electronically controlled diesel engine includes an judge part of an acceleration ( | 12-29-2011 |
20110316309 | Waterproof Structure for Outer Roof - A waterproof structure for outer roof includes a sealing plate fixed to an upper frame so as to form a cabin member, a first elastic sealing member sandwiched between the cabin member and the outer roof, and a second elastic sealing member attached to the outer roof. The first elastic sealing member is sandwiched between the outer roof and the cabin member to form a first sealing portion that seals the inner space of the cabin from the outside. A sealing site of the second sealing member is pressed against an outward extending region to form a second sealing portion that seals the inner space of the cabin from the outside at a position outside the first sealing portion. The present invention can enhance waterproof property as well as quality in outer appearance. | 12-29-2011 |
20110284306 | Work Vehicle - An outer surface of a rear end of each of a pair of front frames is connected to an inner surface of a front end of the corresponding one of a pair of main frames with a spacer being interposed therebetween. Accordingly, a spacing width between the pair of front frames can be defined freely and independently of a spacing width of the pair of main frames, so that maximum steerable angles of front wheels can be increased as much as possible without increasing a mounting pitch of the pair of front wheels. Preferably, the pair of front frames are arranged such that at least upper regions in rear end surfaces thereof are located forward of the mount flange, and the engine unit and the flywheel unit are supported by the vehicle frames such that at least lower portions thereof are overlapped with the vehicle frames in a side view and the mount flange is overlapped with the upper regions in the rear end surfaces of the front frames in a front view. | 11-24-2011 |
20110272966 | Working Vehicle With Cabin - A working vehicle ( | 11-10-2011 |
20110272202 | BONNET STRUCTURE - In a bonnet structure according to the present invention, a bonnet flange | 11-10-2011 |
20110265462 | DIESEL ENGINE - An object is to provide a diesel engine ( | 11-03-2011 |
20110214446 | DESICCANT AIR CONDITIONER - A desiccant air conditioner includes an intake path that introduces air SA from outdoors to indoors, an exhaust path that exhausts air RA from indoors to outdoors, a desiccant rotor adapted to perform dehumidification by adsorbing moisture in air SA flowing through the intake path and regenerate dehumidifying capacity by releasing moisture into air RA flowing through the exhaust path, heating heat exchangers that heat air RA in the exhaust path, and a sensible heat exchanger that performs heat exchange between air RA flowing through the intake path and air SA flowing through the exhaust path, wherein two dehumidification regions, the first dehumidification region and the second dehumidification region, through which air in the intake path passes and two regeneration regions, the first regeneration region and the second regeneration region, through which the air RA in the exhaust path passes are alternately formed in the desiccant rotor. | 09-08-2011 |
20110204651 | Engine Generator - An engine generator is provided having an improved cooling effect realized by cooling air while ensuring a compact arrangement of components in a housing. The engine generator includes an engine | 08-25-2011 |
20110203399 | WORK MACHINE - A tractor, which comprises a boom and a bucket being coupled with each other in series and having the same rotating direction, and a control lever for operating both the boom and the bucket, wherein: a control button is equipped in the control lever, and the control lever can operate either a boom or a bucket after either the boom or the bucket is selected by pressing the control button. | 08-25-2011 |
20110197560 | Lawn Mower - A lawn mower is provided wherein mowed grass can be simply discharged from a mower device to the inside of a grass collector, turnover of a traveling body can be simply prevented, and the mowed grass in the grass collector can be simply discharged to a container etc. The lawn mower comprises a mower device mounted on a traveling body provided with right and left rear wheels, a grass collector for collecting the grass mowed by the mower device, a discharge duct for discharging the mowed grass from the mower device to an inside of the grass collector, and a lift mechanism having right and left fixed masts for supporting on the traveling body the grass collector to be lifted up and down. The grass collector is lifted by the lift mechanism to discharge the mowed grass in the grass collector. The lift mechanism is disposed within a width in the right and left directions of the grass collector, the discharge duct is disposed between the right and left fixed masts, and the discharge duct and the grass collector are connected through between the right and left fixed masts. | 08-18-2011 |
20110192671 | WORK VEHICLE-MOUNTED ENGINE DEVICE - A work vehicle limited in a mounting space is adapted to have an engine, which is provided with an exhaust gas cleaning device, easily arranged therein. An engine device, which is to be mounted on the work vehicle, is provided with the engine mounted on a machine body and covered with a hood, an air cleaner for cleaning air introduced into the engine, and an exhaust gas cleaning device for cleaning exhaust gas from the engine. The exhaust gas cleaning device is arranged on a flywheel housing fitted on one side portion of the engine. | 08-11-2011 |
20110192291 | Grain Huller - A supply plate, which guides a material grain to a contact point between first and second rolls supported by a position-fixed shaft and a position-movable shaft respectively, has a proximal end portion supported by a pivot shaft in a relatively non-rotatable manner, the pivot shaft being disposed parallel to the position-fixed shaft and the position-movable shaft. A position-movable shaft support member that supports the position-movable shaft in a rotatable manner around the axis line is pressed toward the position-fixed shaft by a pressing mechanism so that the first and second rolls are pressed at the contact point to each other under a predetermined pressure. A link arm, which has a proximal end portion supported in a relatively non-rotatable manner by a fulcrum shaft parallel to the pivot shaft, is pressed to a surface of the position-movable support member that faces the position-fixed shaft. The fulcrum shaft and the pivot shaft are operatively connected to each other through a link mechanism. The contact point is shifted as the position-movable shaft support member is moved toward the position-fixed shaft in accordance with the abrasion of the first and second rolls, and at the same time, the pivot shaft is rotated around the axis line by way of the link arm, the fulcrum shaft and the link mechanism in accordance with the movement of the position-movable shaft support member, whereby the slant angle of the supply plate is automatically changed so that the distal end portion of the support plate is directed to the contact point that has been shifted. | 08-11-2011 |
20110192161 | Engine - An engine ( | 08-11-2011 |
20110192160 | Engine - An engine provided with a variable parallel supercharging system ( | 08-11-2011 |
20110180344 | TRAVEL VEHICLE-MOUNTED ENGINE DEVICE - There is provided a travel vehicle-mounted engine device in which a particulate filter can be arranged in a highly rigid state in an engine as one of constituent parts of the engine to eliminate the need for taking countermeasures against exhaust gas for each unit of a vehicle or the like to thereby enhance the general purpose use of the engine. The travel vehicle mounted engine device mounted on a travel machine body and covered with a hood is provided with an air cleaner for supplying air to an engine and with a gas cleaning filter for cleaning exhaust gas from the engine. The air cleaner is arranged above an intake manifold on one side of an upper surface of the engine, and the gas cleaning filter is arranged above an exhaust manifold on the other side of the upper surface of the engine. | 07-28-2011 |
20110168283 | Hydraulic Circuit For Working Machine - A working vehicle, wherein flows of hydraulic oil delivered under pressure from two or more hydraulic pumps are joined together and the joined hydraulic oil can be taken out. A working vehicle is provided with two hydraulic pumps independent of each other and adapted to deliver hydraulic oil under pressure, a mode switching valve ( | 07-14-2011 |
20110155263 | ENGINE DEVICE - An engine device is disclosed in which a gas purifying filter can be disposed, with high rigidity, in an engine as one constituent part of the engine and the need of countermeasures against exhaust gas for each of the devices of a vehicle is eliminated, and general versatility of the engine can be enhanced. The engine device includes a diesel engine having an exhaust manifold, and an exhaust gas purifying device which purifies exhaust gas discharged from the diesel engine. A plurality of filter supporting bodies which support the exhaust gas purifying device are provided on an upper portion of a flywheel housing in the diesel engine. The exhaust gas purifying device is connected to the exhaust manifold and connected to the flywheel housing through the plurality of filter supporting bodies. | 06-30-2011 |
20110154818 | Cooling Structure Of Supercharger - In order to reduce radiation heat from the turbine housing of a supercharger, the turbine housing is conventionally water-cooled or covered with a heat shielding material, but it is required to control heat loss due to excessive water cooling or high temperature on the outer surface of the heat shielding material. On the contrary, a solution by a cooling structure consisting of an inner thermal insulation portion of an air layer and an outer low temperature portion covering the inner thermal insulation portion has an inevitable problem of increasing number of components and upsizing. In a cooling structure of a supercharger ( | 06-30-2011 |
20110154810 | ENGINE DEVICE - There is provided an engine device in which a gas purifying filter can be disposed, with high rigidity, in an engine as one of constituent parts of the engine, the need of countermeasures against exhaust gas for each of devices such as vehicles is eliminated, and general versatility of the engine can be enhanced. The engine device includes an engine having an exhaust manifold, and a gas purifying filter which purifies exhaust gas discharged from the engine, front and rear engine leg mounting portions provided on one side surface of the engine include front and rear filter supporting bodies which support the gas purifying filter, the gas purifying filter includes the front and rear filter supporting bodies, and the front and rear filter supporting bodies are connected to the front and rear engine leg mounting portions. | 06-30-2011 |
20110154809 | ENGINE DEVICE - Disclosed is an engine device in which a diesel particulate filter is disposed, with high rigidity, in an engine as one constituent part of the engine, the need for countermeasures against exhaust gas for each of the devices of a vehicle is eliminated, and general versatility of the engine can be enhanced. The engine device includes an engine having an exhaust manifold, and an exhaust gas purifying device which purifies exhaust gas discharged from the engine. A plurality of filter supporting bodies which support the exhaust gas purifying device | 06-30-2011 |
20110138788 | Exhaust Gas Purifier - It is intend to provide at low cost an exhaust gas purifier capable of in an internal combustion engine or other combustion instrument mainly driven under excess air conditions, efficiently removing nitrogen oxides from exhaust gas. A nitrogen oxide adsorbent ( | 06-16-2011 |
20110120072 | LAWN MOWER - In a lawn mower provided with a lawn mowing mechanism ( | 05-26-2011 |
20110064552 | Work Vehicle - A tractor includes a mounting plate, a protruding tube, a boom supporter, and a boom. The mounting plate is attachable to a frame on a side surface of a vehicle. The protruding tube is connected to the mounting plate, and shaped to protrude from a portion in which the protruding tube is connected to the mounting plate, toward the outside of the vehicle. The boom supporter is connected to a distal end portion of the protruding tube, and shaped to protrude upward from a portion in which the boom supporter is connected to the distal end portion of the protruding tube. The boom is coupled to the boom supporter via a boom coupler, and formed to extend from the boom coupler toward the front side of the vehicle. In a side view, an imaginary straight line extending vertically downward from the boom coupler is located rearward of the protruding tube. | 03-17-2011 |
20110061833 | STATIONARY ENGINE COOLANT CIRCUIT - The present invention has a waste heat recovery device ( | 03-17-2011 |
20110057454 | ARRANGEMENT STRUCTURE FOR CONTROL BOX AND ELECTRIC POWER CONVERTER IN FRAME-MOUNTED ENGINE GENERATOR - In the context of a frame-mounted engine generator in which mounted within a frame ( | 03-10-2011 |
20110056453 | ENGINE HOUSING ENCLOSURE - In the context of an enclosure-housed engine in which an engine | 03-10-2011 |
20110056191 | Exhaust Gas Purification Device - An exhaust gas purification device | 03-10-2011 |
20110056186 | Exhaust Gas Purification Device - A method for controlling an exhaust gas purification device | 03-10-2011 |
20110048829 | WORK VEHICLE - The purpose of the present invention is to provide a work vehicle that does not slip. The work vehicle has an engine ( | 03-03-2011 |
20110023828 | ENGINE - An engine in which a fluctuation in the amount of fuel injection is reduced in the entire operating tolerance of the engine. The engine ( | 02-03-2011 |
20110023824 | Engine - Provided is an engine capable of activating a catalyst in an exhaust purifying apparatus during low-temperature ignition. The engine ( | 02-03-2011 |
20110011604 | Earth Moving Device for Working Vehicle - An earth moving device for a working vehicle, in which earth and sand flowing rearward over an earth moving blade does not enter through a gap between a bush and a piston rod into an angle cylinder tube. An angle cylinder is formed by including an angle cylinder rod and an angle cylinder tube. The angle cylinder rod is pivotably supported on a vertically movable frame, and the angle cylinder tube is pivotably supported on the earth moving blade. | 01-20-2011 |
20110005223 | Engine - Provided is an engine capable of performing post-injection control with a proper fuel injection amount. The engine ( | 01-13-2011 |
20100326057 | Exhaust Gas Purification Device - An exhaust gas purification device ( | 12-30-2010 |
20100307545 | UNDERWATER CLEANING ROBOT AND AUXILIARY CLEANING WORK MACHINE - In a submersible cleaning robot comprising a robot body ( | 12-09-2010 |
20100275882 | Fuel Supply Device For Engine - To make it possible to pump a fuel from a supply pump into an accumulator, even when a pressure control means provided with a pressurized fuel pathway is out of action. In a fuel supply system of an engine, which is provided with pressure control means | 11-04-2010 |
20100275881 | Accumulator Fuel Injection Device - To provide an accumulator fuel injection device, so as to stabilize the operation of a pressure control valve for controlling a fuel pressure in an accumulator. The accumulator fuel injection device includes a pressure control valve | 11-04-2010 |
20100260539 | Fixing Structure of Work Machine - In the conventional connection and fixture part between a working vehicle and an excavator, a connection pin is made to contact a guide plate to be fixed in position, thereby requiring a high rigidity of the guide plate, accuracy of recreation of positioning of the connection pin, and high cost for manufacturing the guide plate. Thus, guide plate | 10-14-2010 |
20100250101 | Engine - It is an object to provide an engine that makes it possible to constantly detect the number of rotations of a supercharger with a calculation load of an ECU reduced. An engine | 09-30-2010 |
20100236531 | Engine With Supercharger - In an engine | 09-23-2010 |
20100230645 | Thermoelectric Material - A thermoelectric material, which has a superior thermoelectric characteristic and is environment-friendly and is suitable for mass productivity due to the lower cost, is provided. The thermoelectric material is an iron alloy that mainly contains Fe, V and Al and that carbides are dispersed into the matrix, wherein [V concentration−C concentration] is 20 or more at % to 32 or less at % and [Al concentration+Si concentration] is 20 or more at % to 30 or less at %. Especially in the thermoelectric material of the present invention, a high Seebeck coefficient can be kept and a lower electrical resistivity can be obtained, thereby improving an output factor and achieving a superior thermoelectric characteristic. | 09-16-2010 |
20100209309 | Black Smoke Purification Device - A black smoke purification device enabling engine performance to be retained by bringing PMs which have become giant into good contact with an oxidation catalyst. A black smoke purification device ( | 08-19-2010 |
20100205946 | ENGINE EXHAUST HEAT RECOVERY DEVICE, AND ENERGY SUPPLY APPARATUS USING THE SAME - [Problems] Provided is a configuration in which a member is not interposed between exhaust gas and a partition wall of an engine coolant passage, and the exhaust gas is caused to directly collide with the partition wall of the engine coolant passage, thus raising the gas flow velocity in a heat exchange part, which enables further improving the exhaust heat recovery rate. | 08-19-2010 |
20100200341 | Brake Operation Structure and Brake/Differential-Lock Operation Structure - The present invention provides a brake operation structure capable of realizing facilitation of adjustment work of a brake operation mechanism for operating a brake mechanism based on manual operation. The brake operation structure includes a brake operation mechanism that rotates a brake pressing member of the brake mechanism about a rotational axis line into a brake actuation direction in accordance with manual operation, and a brake adjustment mechanism that adjusts an initial position of the brake pressing member around the rotational axis line at a time when the brake operation mechanism is not in operation. The brake adjustment mechanism is inserted in the brake operation mechanism at a position allowing the brake adjustment mechanism to be accessed from above a fender trough an opening that is provided at the fender for allowing a driver's seat support frame to be mounted. | 08-12-2010 |
20100198484 | Engine - The purpose of the present invention is to provide an engine having a revision means which regulates rotation speed of each of cylinders while reflecting specific unevenness of rotation of each of the cylinders. With regard to an engine | 08-05-2010 |
20100198483 | Engine - In an engine which may show a behavior where an engine speed is not always minimized after compression top dead center of a cylinder in which poor fuel injection occurred, the cylinder in which poor fuel injection occurred is detected. A common rail diesel engine ( | 08-05-2010 |
20100108030 | Electronic Control Governor - In an electronic control governor ( | 05-06-2010 |
20100108025 | Diesel Engine - In a diesel engine | 05-06-2010 |
20100107613 | Black Exhaust Purification Apparatus For Diesel Engine - It's an object of the present invention to provide a black smoke exhaust purification apparatus capable of equalizing temperature of a particulate filter and facilitating maintenance thereof. The black smoke exhaust purification apparatus ( | 05-06-2010 |
20100100303 | Fuel Injection Control Device For Diesel Engine - A fuel injection control device for a diesel engine controls the first fuel injection timing so as to reduce the amount of white smokes generated in large amounts immediately after starting an engine. The fuel injection control device for the diesel engine comprised a high-pressure pump, a common rail for accumulating a highly-pressured fuel, injectors for injecting the fuel into a combustion chamber and a control means. Due to the fuel injection control device for the diesel engine, the fuel injection is performed after the cranking, without injecting the fuel for a certain period of time after an engine staring switch is turned on, in order that the pressure in the common rail becomes a setting value. | 04-22-2010 |
20100089674 | Tractor - The present invention is provided for sufficiently ensuring a heat balance in the inside of a bonnet. In a tractor in which a radiator including an outside-air suction fan is arranged frontward of an engine, the radiator and the outside-air suction fan are covered with a bonnet, and the outside air is sucked by the outside-air suction fan through a front grille portion formed in the bonnet thus cooling the radiator, a radiator cooling air discharge opening portion is formed in a side wall portion of the bonnet, and the radiator cooling air discharge opening portion opens in the rearward direction. | 04-15-2010 |
20100043419 | Working Vehicle with HST - A working vehicle with an HST in which over-rotation of a hydraulic pump in the HST or the pump input shaft thereof is prevented when a main clutch is disconnected during a run. When a main clutch connection/disconnection detection means ( | 02-25-2010 |
20100031937 | EGR Device For Engine - It is intended to provide an EGR device for an engine in which a cooling structure such as an EGR cooler is not required and which reduces Nox contained in the exhaust gas in the whole operation areas, so as to correspond to recent exhaust gas regulation. An EGR device | 02-11-2010 |
20100030453 | Cetane Number Detection Means and Engine Having the Cetane Number Detection Means - A cetane number detection means in which an angular velocity detection means ( | 02-04-2010 |
20100012079 | Homogeneous Charge Compressed Ignition Engine Operating Method - An aspect of the invention provides a method for operating a workable homogeneous charge compressed ignition engine in which a compression ignition operation is performed by spark ignition to shorten a load input time and a load cutoff time. In the homogeneous charge compressed ignition engine operating method, a mixture gas is burned by compression ignition in a combustion chamber, and fuel and air are previously mixed to produce the mixture gas. The homogeneous charge compressed ignition engine includes a spark ignition device | 01-21-2010 |
20090320788 | Homogeneous Charge Compressed Ignition Engine Operating Method - Compression ignition is induced by spark ignition to realize stable ignition, thereby expanding an operation range where the compression ignition is operable, even in an operating condition in which the compression ignition is hardly performed. Improvements of cycle efficiency and thermal efficiency and restraint of air-pollution substance emission can be realized by properly adjusting compression ignition timing in a cylinder. | 12-31-2009 |
20090320284 | Method of Forming Injection Hole for Injector - In a method for boring injection holes of an injector | 12-31-2009 |
20090314264 | Method of Controlling Valve Timing of Diesel Engine - In a diesel engine equipped with an injector | 12-24-2009 |
20090313861 | Working vehicle - In a working vehicle in which a backhoe support frame for reinforcing is provided in a rear end portion of a vehicle body frame, and a transmission case is mounted on a rear portion of the vehicle body frame so as to be close to the backhoe support frame, each of support brackets provided in an outer side surface of a rear portion of each of main frames constructing the vehicle body frame so as to protrude outward is connected to a protruding end portion protruding to rightwardly and leftwardly relative to each of lower brace members in a reinforcing plate supporting a lower surface of the transmission case in a state in which a rear axle case protruding outward from the right and left side surfaces of the transmission case is sandwiched from upper and lower sides, in order to dissolve a risk that a load generated at a time of traveling in a backhoe installed state or at a time of an excavating work by the backhoe is propagated to the transmission case. | 12-24-2009 |
20090301431 | Method of Controlling Common Rail Fuel Injection Device - A method for controlling a common-rail fuel injection system, which avoids the adverse effect of the pilot injection on the main injection while driving an engine and maximizes the cleaning up of the exhaust gas by the pilot injection or the like, is provided. In the common-rail fuel injection system performing a multistage injection, a pilot injection timing θp at a crankshaft angle and a main injection timing θm at the crankshaft angle base are controlled by a ECU. The ECU calculates a pilot injection interval Tpin at a time base and adjusts the main injection timing θm when the pilot injection interval Tpin is less than the predefined threshold (1 (ms) in the present embodiment). | 12-10-2009 |
20090301429 | Engine and Power Transmission Device - An engine according to an aspect of the present invention includes a crankshaft which is disposed in a substantially horizontal direction, first power transmission means, an input shaft, a first output shaft, second power transmission means, and a power transmission case. The input shaft is disposed below the crankshaft in parallel with the crankshaft, and the input shaft receives a power from the crankshaft through the first power transmission means. The first output shaft supplies the power from the input shaft, and the first output shaft is disposed perpendicular to the crankshaft. The second power transmission means transmits the power of the input shaft to the first output shaft. The power transmission case accommodates the input shaft, the first output shaft, and the second power transmission means therein. | 12-10-2009 |
20090277420 | Accumulator-type fuel injection apparatus and internal combustion engine provided with that accumulator-type fuel injection apparatus - In one embodiment, the high-pressure pump ( | 11-12-2009 |
20090273196 | Front Guard of Working Vehicle - A front guard ( | 11-05-2009 |
20090260909 | Assembling Method of Tractor and Tractor - The present invention aims at the shortening of a main line which constitutes an assembly line. To achieve such an object, in the present invention, an assembly line is constituted of a main line and sub lines, and a first unit which is constituted by connecting a clutch part and a transmission part, a second unit which constitutes a prime mover part, a third unit to which a support body and parts such as a handle, pedals, a dashboard, a fuel tank and the like which are supported on the support body are assembled, a fourth unit to which a front support body and parts such as a battery and a radiator which are supported on the front support body are assembled, a fifth unit to which steps, fenders and the like are assembled, and a sixth unit which is a hood are preliminarily assembled on sub lines and, thereafter, the above-mentioned first to sixth units are assembled together on the main line. | 10-22-2009 |
20090253316 | Multi-cylinder engine fuel control method, engine fuel injection amount control method and engine operation state discrimination method using the same, propulsion apparatus for multiple engines, and fuel injection control method during crash astern in marine engine with reduction and reversal device - Rotation recognition means for recognizing a revolution of a crankshaft based on the cylinders before the combustion cycle of a cylinder in question is provided. When the supply of fuel by injection from an injector to a certain cylinder of the six cylinders has become impossible, then control is performed to change the number of cylinders targeted by the rotation recognition means so as to recognize the revolution of the crankshaft for all six cylinders whose combustion cycles are consecutive prior to the combustion cycle of the cylinder in question, and to stop the supply of fuel from the injectors for supplying fuel to cylinders whose combustion cycles are equally spaced from the cylinder to which the supply of fuel is not possible, so that the spacing between the combustion cycles in the cylinders whose combustion cycles come before and after and sandwich the cylinder to which the supply of fuel is not possible becomes uniform. | 10-08-2009 |
20090248227 | Multi-cylinder engine fuel control method, engine fuel injection amount control method and engine operation state discrimination method using the same, propulsion apparatus for multiple engines, and fuel injection control method during crash astern in marine engine with reduction and reversal device - Rotation recognition means for recognizing a revolution of a crankshaft based on the cylinders before the combustion cycle of a cylinder in question is provided. When the supply of fuel by injection from an injector to a certain cylinder of the six cylinders has become impossible, then control is performed to change the number of cylinders targeted by the rotation recognition means so as to recognize the revolution of the crankshaft for all six cylinders whose combustion cycles are consecutive prior to the combustion cycle of the cylinder in question, and to stop the supply of fuel from the injectors for supplying fuel to cylinders whose combustion cycles are equally spaced from the cylinder to which the supply of fuel is not possible, so that the spacing between the combustion cycles in the cylinders whose combustion cycles come before and after and sandwich the cylinder to which the supply of fuel is not possible becomes uniform. | 10-01-2009 |
20090199792 | Construction Machine - An object is to provide a construction machine containing an engine ( | 08-13-2009 |
20090199554 | Hydraulic Stepless Transmission - [Problems] A hydraulic stepless transmission having increased layout freedom and a compact structure with the functions of conventional hydraulic stepless transmission retained and having increased easiness of production. | 08-13-2009 |
20090133670 | Cold Start Device for Fuel Injection Pump - A fuel injection pump | 05-28-2009 |
20090130521 | Plate Solid Oxide Fuel Cell - For a plate solid oxide fuel cell, costs thereof are made low and the thermal conductivity thereof is improved, and further only by effect of the shape thereof, a burning gas is sealed while a back diffusion phenomenon of air from the outside is restrained. Plate-shaped unit cells | 05-21-2009 |
20090129908 | Arm for Excavation Machine - An object of the present invention is to reduce manufacturing cost and manufacturing man-hour of an arm constituting a working machine in an excavation machine. In an arm | 05-21-2009 |
20090127815 | Tractor - The present invention ensures excellent assembly and maintenance of a machine body. A tractor of the present invention includes a prime mover part, a transmission portion interlockingly connected to a rear portion of the prime mover part, a driver portion arranged above the transmission portion, a lifting mechanism mounted on the transmission portion, wherein a working oil tank for storing a working oil for operating at least the lifting mechanism is arranged below a stepped portion formed on the driver portion in an extending manner. Due to such a constitution, a space which constitutes a dead space can be effectively utilized thus ensuring the excellent assembly and maintenance of the machine body. | 05-21-2009 |
20090121521 | Frame Structure for Working Vehicle - Rigidity of a frame of a working vehicle is improved by a simple structure and production costs are reduced by reducing the number of parts of a working vehicle. Pipes | 05-14-2009 |
20090104011 | Excavation Machine - An objective of the present invention is to provide a counterweight of a power shovel interchangeable with that of a superordinate model without affecting a rear end radius of the shovel at the time of rotation. In the power shovel | 04-23-2009 |
20090094765 | SUBMERSIBLE CLEANING ROBOT - A submersible cleaning robot ( | 04-16-2009 |
20090081087 | Exhaust gas purifier - It is intend to provide at low cost an exhaust gas purifier capable of in an internal combustion engine or other combustion instrument mainly driven under excess air conditions, efficiently removing nitrogen oxides from exhaust gas. A nitrogen oxide adsorbent ( | 03-26-2009 |
20090078667 | Boom for Excavation Machine | 03-26-2009 |
20090033125 | Front Guard of Working Vehicle - A front guard | 02-05-2009 |
20090029826 | Controller of work vehicle - Various works of a tractor or wheel loader that require frequent operations of start, stop, and switching between the forward drive and reverse drive that are repeated alternately can be performed very easily. The control apparatus comprises a speed change sensor that detects the step-on amount of a speed change pedal, an actuator that regulates the swash plate angle of a hydraulic pump based on the detection value of the speed change sensor, a transmission output unit rotation sensor that detects the revolution speed of an output shaft, and a control unit. The control unit performs control such that when the speed change pedal is not stepped on, a brake is applied to the travel wheels and both the forward drive clutch and the reverse drive clutch are disengaged, and also performs control such that when the transmission drive output detected with the transmission output unit rotation sensor is not more than that the forward-reverse drive switching speed, either the forward drive clutch or the reverse drive clutch is engaged as the speed change pedal is stepped on. When the engagement of the forward drive clutch or reverse drive clutch is confirmed, the brake of the travel wheels is released. | 01-29-2009 |
20090013674 | Exhaust Gas Purifier - The present invention provides an exhaust gas purifier capable of appropriately purifying harmful components discharged even from an internal combustion engine or a combustion instrument operated mainly in excess-air conditions. Particularly, the exhaust gas purifier is capable of appropriately removing nitrogen oxides, particulate matters including soot, etc. and in addition, capable of maintaining its purification capability without reduction. the exhaust gas purifier has, in the exhaust passage ( | 01-15-2009 |
20090012701 | Fuel Injection Device of Diesel Engine - A fuel injection device of a diesel engine capable of smoothly starting the diesel engine to match an environment around the engine by saving a fuel, reducing the exhaustion of carbon dioxide, and suppressing black smoke in starting the diesel engine. A rack ( | 01-08-2009 |
20090012696 | Fuel Injection Control Method - The purpose of the invention is to improve responsibility of an engine with common rail system at the time of starting and to reduce whole vibration of a plurality of engines. With regard to fuel injection control method controlling fuel injection to a plurality of cylinders of an engine | 01-08-2009 |
20080272610 | Tractor - An object is to provide an assist grip for an operator to easily ride on/off an operation section. An assist grip for supporting a weight of an operator riding on/off an operation section is disposed in front of a steering wheel so as to overlap steering wheel when viewed in front. | 11-06-2008 |
20080264381 | Fuel Injection System - There is well known that the much timing of fuel injection is advanced, the much start ability of an engine is improved. However, with regard to the conventional fuel injection system, when stopping process of the engine is performed, a timer piston determining timing of fuel injection remains at a position at which the piston exists at the time that the stopping process is performed. Then, at the time of next starting of the engine, the timer piston does not often exist in the advanced angle side and the start ability may be bad. | 10-30-2008 |
20080264045 | Exhaust Gas Purification Apparatus, Internal Combustion Engine Comprising the Same, and Particulate Filter Restoring Method - In an embodiment of an exhaust gas purification apparatus, when an accumulation amount of particulate matter in a DPF ( | 10-30-2008 |
20080250917 | Hydraulic Lift Structure - An object of the invention is to propose a hydraulic lift structure which prevents a malfunction of a hydraulic cylinder or the like and improves a supplying and discharging efficiency of a working fluid. In a hydraulic lift structure formed by arranging a hydraulic cylinder case internally provided with a hydraulic cylinder for moving up and down a working machine (a rotary power tiller) in an upper portion of a transmission case of a working vehicle, an oil reservoir of a working fluid for the hydraulic cylinder is provided in a boundary portion between the transmission case and the hydraulic cylinder case in such a manner as to be isolated from an inner portion of the transmission case. | 10-16-2008 |