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Air-cooled

Subclass of:

123 - Internal-combustion engines

123410010 - COOLING

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Class / Patent application numberDescriptionNumber of patent applications / Date published
123410560 Air-cooled 77
20090211543Air cooler - An air cooling system includes an intake line, a heat exchanger, an exhaust line, and an amount of frozen carbon dioxide. The intake line connects the heat exchanger to an air source, and the exhaust line connects the heat exchanger to an air destination. The frozen carbon dioxide is disposed against at least a portion of the heat exchanger to draw heat away from the air. Optionally, a system can include dual heat exchangers connected via a bridge line, with the frozen carbon dioxide being disposed there between.08-27-2009
20090241866COOLING STRUCTURE OF INTERNAL COMBUSTION ENGINE - A cooling structure of an internal combustion engine includes a cylinder block having a plurality of cylinder bores; a cylinder head disposed on an upper portion of the cylinder block; two camshafts disposed on the cylinder head so as to be juxtaposed to each other in parallel to a crankshaft; camshaft housing chambers formed on the cylinder head to house the respective camshafts; a recessed portion provided between the camshaft housing chambers; a plug seat formed between the camshafts and in the recessed portion; a cooling air passage formed between the cylinder bores; and cooling air introduction passages communicating from the cooling air passage to the recessed portion of the cylinder head.10-01-2009
20100012057CYLINDER HEAD STRUCTURE FOR INTERNAL COMBUSTION ENGINE - In a cylinder head structure for an internal combustion engine that directs air into a covered space above the cylinder head covered by a head cover to ventilate the covered space, a gas flow passage space that extends continuously over an entire length or substantially over the entire length in a longitudinal direction is formed in the covered space. In addition, an air introduction position is provided within the gas flow passage space, and an air discharge position is provided outside the gas flow passage space.01-21-2010
20100043733Protective System for a Crank Angle Sensor - A system for protecting a crank angle sensor is disclosed. The system includes a protective member, a heat insulating member and an airflow deflecting member. The heat insulating member insulates against heat from adjacent heat sources. The airflow deflecting member directs driving wind into an interior portion of the protective member to cool the air adjacent to a portion of the crank angle sensor. The protective member also includes holes to receive the driving wind directed from the airflow deflecting member.02-25-2010
20100229809FULL TIME LEAN RUNNING AIRCRAFT PISTON ENGINE - A full time lean air fuel mixture running spark ignited air cooled aircraft piston engine. In one embodiment, a drop-in substitution is provided for an equivalent make, model, and engine size, wherein the new, rebuilt, or reconfigured engine provides as much or more horsepower when compared to the original engine, but runs at a lean air fuel ratio condition during normal operating modes, including takeoff, climb, and cruise, thus saving significantly on fuel. In yet another embodiment, a drop-in substitution having a somewhat larger cylinder displacement volume may be provided to attain equivalent or enhanced maximum horsepower while operating at lean air fuel ratios. Enhanced engine life may be anticipated, since cylinder head temperatures (CHTs) may be reduced, compared to engines using rich air fuel ratios for climb and cruise conditions. Aircraft using such engines are also disclosed.09-16-2010
20120210955GAS COOLER FOR AN INTERNAL COMBUSTION ENGINE - A gas cooler for an internal combustion engine is provided that includes a gas channel for permeating with a gas flow fed to the internal combustion engine in a flow direction, and a heat exchanger inserted in the gas channel in an insertion direction, wherein the heat exchanger comprises at least one connection for feeding or discharging a fluid for cooling the gas flow, wherein the connection comprises a first connection part connected to the heat exchanger before inserting the hat exchanger into the gas channel, and a second connection part that can be connected to the first connection part from the outside.08-23-2012
20130146001VEHICLE WITH FAN UNIT PRODUCING AN AMPLIFIED AIR FLOW TO A HEAT EXCHANGER - A vehicle includes a heat exchanger which is disposed in a cooling system, and a fan unit which forms part of a radiator grille and is constructed to generate an air flow through the heat exchanger. The fan unit has at least one fan which is constructed to generate a primary air flow, and a ring element which is constructed to generate from the primary air flow an amplified secondary air flow to the heat exchanger.06-13-2013
20130239914ENGINE AND ENGINE POWER TOOL - The cooling effect of an engine is improved. An engine, which rotationally drives a saw chain serving as a rotating tool, is provided with a crankcase, in which a crankshaft is rotatably built, and a cylinder, in which a piston coupled to the crankshaft via a connecting rod is reciprocatably built. Atop part of the cylinder is covered with a cylinder cover, and a cooling wind toward the cylinder is generated by a cooling fan attached to a projecting end of the crankshaft. The cooling wind is guided by heat-dissipating plates extending along the crankshaft. Exposing parts bulged to outside than a lateral side of the cylinder cover are provided to tips of the heat-dissipating plates.09-19-2013
20140123919Cooling Device of V-Type Engine - A cooling device is incorporated into a V-type engine E in which a front cylinder and a rear cylinder are arranged in V-shape and a rear exhaust pipe is placed at a right side of a vehicle body. The cooling device 1 includes an intake duct and a fan. The intake duct has a suction port which opens toward the rear exhaust pipe. The fan suctions the air into the interior of the intake duct through the suction port and exhausts the suctioned air to a location distant from the exhaust pipe.05-08-2014
20140216369AIR-COOLING CYLINDER HEAD OF GASOLINE ENGINE AND GASOLINE ENGINE HAVING THE SAME - The invention discloses an air-cooling cylinder head of a gasoline engine and a gasoline engine. The air-cooling cylinder head of a gasoline engine comprises a cylinder head main body (08-07-2014
20140251241VEHICLE FRONT PORTION STRUCTURE - A vehicle front portion structure is obtained that can efficiently lead cooling wind to a heat exchanger. A vehicle front portion structure has: a heat exchanger; a flow path member that forms a discharging flow path that discharges airflow, that has passed through an air-side flow path of the heat exchanger, to a vehicle exterior from a downwardly-directed opening portion at a rear side with respect to the heat exchanger; and an airflow promoting structure that forms a contracted flow path that gradually becomes more narrow from a front end side toward a rear end side, and that, at the front end side, increases a speed of traveling wind that has flowed-in from beneath a vehicle floor, and that causes the traveling wind to flow-out from between the heat exchanger and the opening portion at the discharging flow path.09-11-2014
20170232381PARTIAL GAS SEPARATION TECHNIQUE FOR OXYGEN AND NITROGEN ENRICHMENT OF ATMOSPHERIC AIR08-17-2017
123410570 With liquid cooling 6
20090255489Straddle Type Vehicle - A motorcycle includes an engine, a radiator that cools a cooling liquid, a first piping that connects the engine to the radiator, and a second piping that connects the engine to the radiator. The second piping, engine, radiator and first piping form a circulating circuit through which cooling liquid circulates. At least one of the first and second pipings is substantially constituted by resin piping. The time required to warm up the engine is thereby reduced.10-15-2009
20100186687STATOR FOR BLDG MOTOR BLDC MOTOR HAVING DOUBLE ROTORS/ SINGLE STATOR AND VEHICLE COOLER USING THE SAME - Provided are a stator for a brushless direct-current (BLDC) motor, a BLDC motor having a double-rotor/single-stator structure, and a vehicle cooler using the same, which uses a printed circuit board for an assembly that automatically sets an assembly position of stator core assemblies, to thereby secure waterproof, light-weight, and high power features. The stator includes a holder, a boss which has built-in bearings in order to support a rotational axis, and which enables the rotational axis to be rotated, a number of stator core assemblies which respectively enclose bobbins having inner and outer flanges at the inner and outer sides of a number of division type stator cores and in which coils are wound around the bobbins, and a printed circuit board for an assembly in which each stator core assembly is automatically position-set and then assembled and both end portions of the coil are mutually connected by each phase of U, V and W. After each stator core assembly has been temporarily assembled on the assembly PCB, the stator core assembly is insert molded using thermosetting resin to thereby integrally form the holder and the boss in the stator.07-29-2010
20100229810COOLING APPARATUS FOR A MOTOR VEHICLE - A cooling apparatus for a motor vehicle with an internal combustion engine is provided that includes at least one heat exchanger through which air can pass, at least one axial fan that is located behind the at least one heat exchanger in a direction of air flow and has a circumferential ring with which ring is associated a stationary baffle ring, and a fan shroud adjoining the at least one heat exchanger. At least one motion compensating element with a sealing function is provided between the baffle ring and the at least one fan shroud.09-16-2010
20100275862Device and Method for Integrating an Air Cleaner into a Radiator Fan Shroud - An air induction device for a vehicle comprises an air cleaner integrated into a radiator fan shroud; an air inlet configured to direct air into the air cleaner; and an air outlet configured to receive air from the air cleaner for distribution to an engine of the vehicle.11-04-2010
20160186643COOLING FAN - A cooling fan for use in a utility vehicle, wherein the cooling fan is equipped with a fan cover for covering the upper half portion of the cooling fan and is accommodated inside an engine room that is configured so as to take in the outside air from the lower side and to be accessible from the upper side, and the fan cover is fixed to an engine case.06-30-2016
20160376976Engine Generator Set With A More Compact, Modular Design And Improved Cooling Characteristics - Embodiments of an engine generator set are provided herein with a compact, modular design and improved cooling characteristics. The engine generator set embodiments may generally comprise a horizontally shafted engine and alternator, and a cooling system. In some embodiments, the embodiments may include a set of on-board transformers. The cooling system includes one or more components, such as a radiator and one or more electrically driven fans, which are mounted above and/or below the horizontally shafted engine and alternator in a vertical stack. A generator set housing encloses the horizontally shafted engine and alternator, the cooling system and the set of on-board transformers (if included), as well as other generator set components. Due in part to the vertical stacking of the cooling system components, a height of the generator set housing may be substantially larger than a length of the generator set housing, resulting in a substantially reduced footprint, as compared to conventional generator sets.12-29-2016
123410580 Flow-regulating means 7
20090114172Internal combustion engine - An internal combustion engine has a cylinder (05-07-2009
20090139474Air-to-air aftercooler - An air-to-air aftercooler is disclosed. The air-to-air aftercooler includes at least one core assembly and two inlet lines connected to the core assembly. The air-to-air aftercooler may also include a single outlet line configured to direct cooled charge air to an intake manifold of an engine.06-04-2009
20090272342Cooling Air Conduit for V-twin Cylinders - A cooling air conduit for motorcycle engine which is particularly suitable for V-twin cylinders is provided which is constructed of a conduit body of elongated, tapered shape formed by a top panel, a bottom panel and two side panels such that a cool air passageway is formed inbetween the panels to direct cool air, away from the first cylinder, and onto the second or rear cylinder for efficient cooling.11-05-2009
20130068177CONSTRUCTION MACHINE - A construction machine includes a main body portion that has an engine compartment formed therein, a cooling unit arranged in the engine compartment, an inlet formed as opening in a side surface of the main body portion so that the cooling air is drawn into the engine compartment by the cooling fan through the inlet, an exhaust gas after-treatment device arranged on an upper side relative to the engine on the downstream side relative to the cooling fan on a flow path of the cooling air, an engine hood that covers the exhaust gas after-treatment device, and an upper outlet arranged immediately above the exhaust gas after-treatment device and formed in at least one of a top surface of the engine hood and a side surface of the engine hood in a front-and-rear direction of the main body.03-21-2013
20140090610GRILL SHUTTER - Provided is a grill shutter configured to selectively open and close an external air intake opening formed in a front part of a vehicle body. The grill shutter includes: a frame surrounding the external air intake opening; a plurality of blades rotatably supported by the frame and driven to rotate between a closed position for closing the external air intake opening and an open position for revealing the external air intake opening; a drive unit for rotationally driving the blades; and a power transmission mechanism transmitting a drive force of the drive unit to the blades, the power transmission mechanism configured to cause the blades to start an opening movement one after another with a predetermined time lag between successive opening movements.04-03-2014
20150322843AIR FLOW GUIDE FOR AN INTERNAL COMBUSTION ENGINE - An air flow guide/diverter is disclosed for mounting to a cylinder head of an internal combustion engine. The air diverter directs cooling air to multiple locations on the cylinder head. The air diverter includes a main diverter shield having a proximal end extending from a cooling source to a distal end extending to the rear of the internal combustion engine. The air diverter includes a first arcuate member attached to the main diverter shield between the proximal end and the distal end of the main diverter shield, and a second arcuate member connected to the main diverter shield near the distal end of the main diverter shield. The air flow guide creates multiple channels of air to provide more efficient cooling with little added cost.11-12-2015
20150322882ENGINE CYLINDER HEAD PUSH ROD TUBE CONFIGURATION - A cylinder head and push rod tube configuration for an internal combustion engine is disclosed. The cylinder head includes a first end comprising a recessed rocker arm cavity. The cylinder head also includes a second end opposite the first end and defining an upper end of a combustion chamber. The recessed rocker arm cavity has a lower surface with a pair of push rod tube bores therethrough. The second end of the cylinder head has a pair of push rod tubes positioned in the push rod tube bores between the recessed rocker arm cavity and the second end. An intake port and an exhaust port each extend through the cylinder head to the combustion chamber.11-12-2015
123410600 Steam dividing vanes, baffles, conduits, or the like for multiple cylinders 5
20090314228ENGINE GENERATOR - An engine generator is disclosed in which an engine drives a generator and causes a cooling fan to rotate to cool the generator. The generator includes an intake duct having an intake port provided in a lower portion thereof and oriented downward. Moisture-containing outside air sucked through the intake port impinges on a barrier plate disposed in the intake duct. The barrier plate is located above the intake port and faces the intake port. The moisture adheres to the barrier plate in the form of water droplets, which then fall toward the intake port after having separated from the outside air.12-24-2009
20100037837SOUNDPROOF TYPE ENGINE GENERATOR - A small and lightweight sound-proof generator exhibiting sufficient cooling effect. An inverter (02-18-2010
20100263609Air distribution scroll with volute assembly - An apparatus is disclosed including a fan producing an outlet fluid flow, and an inlet receiving an inlet stream and operably coupled to the fan. The apparatus further includes a divider separating the outlet flow into a first outlet stream and a second outlet stream, a first flow path directing the first outlet stream to a first heat transfer device thermally coupled to a first heat generating device, and a second flow path directing the second outlet stream to a second heat transfer device thermally coupled to a second heat generating device. In certain embodiments, the first and second heat transfer devices are a radiator and a surface of a generator, and the first and second heat generation devices are an internal combustion engine and the generator.10-21-2010
123410620 Air duct with discharge ports or conduits 2
20080236519Flexible seal and molded rigid chamber - A connection between an expansion chamber outlet and a rubber cuff that accommodates an inlet portion of a throttle body exhibits a dovetail connection between an expansion chamber wall and the rubber cuff such that the expansion chamber has a dovetail recession while the rubber cuff has a dovetail projection. The rubber cuff is insert molded around the expansion chamber outlet such that the joined interface between the rubber cuff and the expansion chamber is from the molding. The dovetail prevents separation due to air forces through the chamber and cuff. A cuff groove opposite the dovetail projection, on a cuff inside diameter, receives a protuberance of the throttle body inlet portion. A band clamp fits around the outside diameter of the cuff, adjacent the throttle body inlet protuberance, to prevent movement of the throttle body. The cuff has a projection(s) to also prevent slippage of the throttle body.10-02-2008
20090199793AIR-COOLED ENGINE - There is provided an air-cooled engine (08-13-2009
123410630 With impelling means 35
123410650 Fan type 35
20090013942Cooling Structure for a Work Vehicle - A cooling structure for a working vehicle with a transmission disposed rearwardly and downwardly of a driver's seat and having a hydrostatic transmission, and an air-cooled engine disposed rearwardly of the transmission. The cooling structure comprising a fan for cooling the engine and a fan for cooling the transmission mounted on a rotary shaft operatively connecting the transmission with an output shaft of the air-cooled engine, the fans being configured such that air flows generated by the fans move from adjacent the transmission toward the engine; an oil cooler for cooling fluid supplied to the hydrostatic transmission, the oil cooler being disposed between the fan for cooling the engine and the fan for cooling the transmission, and disposed to face each of the fans; and an air guiding plate disposed at a position higher than the oil cooler for guiding air to regions of the fans.01-15-2009
20090044769AIR-COOLED ENGINE - An air-cooled engine (02-19-2009
20090235880DEVICE FOR CLEANING INTAKE AIR - A device is provided for a piece of equipment with an internal combustion engine having a crank case and a combustion space, wherein an air cooling stream is present for cooling the internal combustion engine. The device, on the one hand, is effective for cleaning of the intake air, and on the other hand, a thermal separation between tank and crank case is achieved in a simple manner. The device includes at least one recess, which is constructed open or closed, and is arranged in the crank case, and is separated from an interior of the crank case and forms air cushions.09-24-2009
20090293821AIR-COOLED V-TYPE COMBUSTION ENGINE - A cooling fan assembly has an inner surface provided with a guide body for guiding a cooling air towards a first engine cylinder, positioned on a leading side with respect to the direction of rotation of the cooling fan assembly, and a second engine cylinder, positioned on a trailing side, after the cooling air has been separated. The guide body includes an upright wall protruding from the inner surface of the fan casing in an axial direction of the cooling fan assembly and extending radially outwardly and spirally from the inner surface of the fan casing as it progresses from the trailing side towards the leading side, and a ceiling wall connected with a projecting end of the upright wall and extending inside the spirality and operable to guide the cooling air inside the spirality of the upright wall towards the first engine cylinder.12-03-2009
20100024747HARVESTING MACHINE AND SCREEN ARRANGEMENT - A harvesting machine is provided with a chassis, that includes at its rear an enclosed engine compartment in which an internal combustion engine is arranged. A screen arrangement can be positioned at the forward side of the engine compartment that includes a perforated filter element through which a blower can draw air through it and to the rear into the engine compartment. The screen arrangement is arranged to slide in a direction extending horizontally and transverse to the forward operating direction of the harvesting machine between an operating position of the engine compartment and a maintenance position outside the engine compartment.02-04-2010
20100031903AIR-COOLED ENGINE - An air-cooled engine (02-11-2010
20100059000ARRANGEMENT RELATED TO A MOTOR-DRIVEN TOOL - An arrangement for cleaning of intake air for an air-cooled internal combustion engine of a motor-driven tool, such as a chain saw. The arrangement includes an air conductor surrounding a fan wheel arranged to propel intake air around an axis of the fan wheel. An inner wall of the air conductor is arranged for guiding air propelled by the fan wheel. An air nozzle for cleaning of intake air is arranged on the inner wall of the air conductor radially close to said fan wheel. The air nozzle serves as a passage way for providing cleaned intake air from the fan wheel to the engine of the motor-driven tool, wherein the air nozzle and the air conductor are manufactured in one piece.03-11-2010
20100122674Cooling Air Passage for a Motor Chain Saw - A motor chain saw has a motor housing with a drive unit for driving a saw chain on a guide bar. The drive unit is an internal combustion engine with a cylinder and a crankshaft extending transversely to a longitudinal axis of the motor chain saw. A drive pinion is mounted on a first end of the crankshaft. A cooling air blower with a blower wheel is mounted on the second end of the crankshaft. A cooling air stream of the blower flows transversely to the longitudinal axis of the motor chain saw about the cylinder and exits through a housing opening. A hand guard arranged between a handle and a front end of the guide bar is connected with one leg near the housing opening for the cooling air stream. In front of the housing opening a baffle element is supported on the leg of the hand guard.05-20-2010
20100132637AUTOMOTIVE AIR BLOWERS - An automotive air blower, in particular a supercharger, includes an air pump, such as an air impeller connected to the output shaft of a transmission system, the input shaft of which is connected, in use, to the engine of a motor vehicle. The input and output shafts are connected to respective branches of a three-branch epicyclic differential gearset. The third branch of the gearset and the input shaft are connected to the rotor of respective electrical machines, the electrical connections of the stators of which machines are connected together via a controller arranged to control the flow of electric power between them.06-03-2010
20100186688ENGINE BLOWER - An engine blower includes a blower having a fan accommodated in a volute case, and an engine having a volute for generating a cooling air for self-cooling. An output shaft of the engine is provided with the fan without attaching a cooling fan for generating the cooling air. An outlet port for delivering a part of a blowing air generated by the fan is provided on the volute case.07-29-2010
20100199931Portable handheld work apparatus having an internal combustion engine - In an internal combustion engine (08-12-2010
20110023798ELECTRIC MOTOR - A DC motor, has a stator housing accommodating a permanent magnet stator; a rotor, rotatably mounted confronting the stator, the rotor having a shaft, a rotor core fitted to the shaft and having laminations forming salient poles, a commutator fitted to the shaft adjacent one end of the rotor core, windings wound about poles of the rotor core and terminated on the commutator, the windings each being wound around a single pole of the rotor; and brush gear comprising brushes in sliding contact with the commutator for transferring electrical power to the windings.02-03-2011
20110088639FRICTION CLUTCH AND DRIVE SYSTEM FOR COOLING AN INTERNAL COMBUSTION ENGINE OF A VEHICLE WITH A FRICTION CLUTCH - A friction clutch (04-21-2011
20110100308Work apparatus with a combustion-air flow diverted from the cooling air flow - The invention relates to a portable, hand-held work apparatus such as a chain saw, a cut-off machine, a brush cutter or the like with an air cooled combustion engine. A cooling air blower (05-05-2011
20110107985Handheld work apparatus having an air-cooled combustion engine - The invention relates to a portable, handheld work apparatus such as a chain saw having a handle (05-12-2011
20110308485FOUR-STROKE ENGINE AND WORKING MACHINE USING THE SAME - A reduced size four-stroke engine and a working machine using the same are provided. A fuel tank is disposed in the space below a carburetor and an engine base is integrally formed with a fuel tank. By this means, the fuel tank is disposed in the space below the carburetor, and therefore the oil tank is not required to be disposed below the oil tank, so that it is possible to reduce the size.12-22-2011
20120097119CYLINDER COOLING APPARATUS FOR AIR-COOLED ENGINE - A cylinder cooling apparatus for an air-cooled engine is equipped with a cooling fan provided on one end section of a crankshaft; a pair of pushrod insertion holes for air intake and exhaust valves formed in a cylinder outer circumferential wall section; a fan shroud for covering the cooling fan and for covering the cylinder outer circumferential wall section in which the pushrod insertion holes are formed; a cutout ventilating section formed in the cylinder outer circumferential wall section between the pair of pushrod insertion holes; and tunnel-shaped ventilating holes formed in the cylinder outer circumferential wall section between the pushrod insertion hole disposed on the side of the cooling fan and a cylinder bore and extending from the cylinder outer circumferential wall section on the side of the cooling fan to the cutout ventilating section.04-26-2012
20120160194COOLING APPARATUS OF ENGINE - A cooling apparatus of an engine according to the present invention includes a cooling fan, a fan housing, and a shroud guiding cooling air from the fan housing to the outer circumferential surface of an engine body portion. Further, a cooling air passage passing throughout in a cylinder head from one side surface of the cylinder head to the other side surface thereof is formed in the cylinder head, and a narrowed or throttle guide portion which guides the cooling air from the interior of the fan housing to an inlet opening of the one side surface of the cooling air passage is formed in the shroud.06-28-2012
20120291725Portable Handheld Work Apparatus having an Internal Combustion Engine - In an internal combustion engine (11-22-2012
20120298055APPARATUS AND METHOD FOR PUMPING AIR FOR EXHAUST OXIDATION IN AN INTERNAL COMBUSTION ENGINE - An apparatus and method for producing air flow in a vehicle that uses a cooling fan for an engine of the vehicle. The cooling fan has plurality of blades, which define an outer perimeter of the fan. The apparatus also includes a housing surrounding at least a portion of the outer perimeter of the fan and a plurality of vanes between the housing and the fan. The vanes are revolved around the outer perimeter of the fan to direct air into the housing.11-29-2012
20130019822RECOIL STARTER ASSEMBLY FOR AN ENGINE - An engine includes an engine cover, a blower fan, and a recoil starter having a cover. The engine cover includes an inlet aperture and is configured to house working components of the engine. The blower fan is configured to disperse air received through the inlet aperture to cool the working components of the engine. The recoil starter cover has an opening for air to pass through and is fastened to the underside of the engine cover.01-24-2013
20130068178COOLING PACKAGE BAFFLE OR DUCTING - An air flow system is disclosed. The system is for use with a vehicle including an internal combustion engine, a heat exchanger, a cover, and a compartment baffle separating an engine compartment from a cooling compartment. The system includes a side air intake including a side air intake baffle. The side air intake baffle configured to inhibit air heated by the engine from mixing with ambient air used with the heat exchanger. In another embodiment, the system includes a side air duct. The side air duct includes a side air duct, wherein the side air duct tubing is at least partially located within the engine compartment. The side air duct tubing is configured to inhibit air heated by the engine from mixing with ambient air used with the heat exchanger.03-21-2013
20130068179ENGINE FOR PORTABLE WORKING MACHINE - An engine for a portable working machine includes: a crankshaft to which the working machine is coupled; an air-cooling fan coupled to one end side of the crankshaft; a fan casing enclosing the air-cooling fan; and a bottom cover located in a bottom surface side of the engine and connected to the fan casing. Air suction ports and guide parts are provided in one side of the bottom cover, the air suction ports sucking in air supplied from the air-cooling fan, and the guide parts extending from the air suction ports to the impeller blades of the air-cooling fan.03-21-2013
20130306007DEVICE FOR PROVIDING CLEAN COMBUSTION AIR FOR THE INTERNAL COMBUSTION ENGINE OF A WORKING TOOL - In a device for providing clean combustion air for an internal combustion engine of a working tool, provision is made for a cyclone filter into which ambient air contaminated with impurities can be sucked. A partial air flow contaminated with impurities can be extracted by suction from the cyclone filter, a partial air flow substantially freed from impurities is branched off from the cyclone filter and supplied to the internal combustion engine as combustion air. A fan which provides a flow of cooling air against the internal combustion engine, is at least partially accommodated in a housing. Provision is made in the housing for at least one suction bore, which leads into the housing and provision is made in the area of the suction bore for a flow element for creating a low pressure. The partial air flow contaminated with impurities is connected to the suction bore.11-21-2013
20130340693Power Tool - A power tool has an internal combustion engine with a cylinder. An injection valve supplies fuel to the internal combustion engine. A fuel pump conveys fuel from a fuel tank to the injection valve. A fan wheel is provided that is driven by the internal combustion engine. The cylinder is arranged in a first cooling zone of the power tool and the fan wheel conveys cooling air through the first cooling zone. The fuel pump is arranged in a second cooling zone of the power tool. Between the first cooling zone and the second cooling zone a buffer zone is arranged. The buffer zone is separated by at least one first partition from the first cooling zone and by at least one second petition from the second cooling zone.12-26-2013
20140000537Power Tool01-02-2014
20140033996Apparatus and Method for Facilitating Attachment of Fan and Flywheel - An apparatus and method for facilitating coupling of a fan and a flywheel, as well as an internal combustion engine and other applications for such apparatus and method are described herein. In one example embodiment, an apparatus for facilitating coupling of a fan and a flywheel includes a plurality of protrusions formed on the fan, wherein each of the protrusions defines a respective hole therewithin, a plurality of receiving structures formed in the flywheel, and a plurality of pins. The receiving structures are positioned so that, when the fan is axially aligned with and adjacent to the flywheel, the protrusions are respectively received by the receiving structures. Further, when the pins are inserted into the holes, portions of the protrusions expand outwardly so that interference is created between surfaces of the protrusions and the receiving structures, whereby due to the interference the fan and flywheel are rotationally coupled.02-06-2014
20140053793ROTATING SCREEN FOR CENTRIFUGAL FAN - A rotating screen, for use with a centrifugal fan of an engine, includes a hub having a rotational axis and a plurality of blades extending radially outwardly from the hub. Each of the blades includes a root adjacent the hub, a tip, a leading edge extending between the root and the tip, and a trailing edge extending between the root and the tip. The blades also include an airfoil shape. The rotating screen also includes a band concentric with the hub and interconnecting the tips of the respective blades.02-27-2014
20140053794CENTRIFUGAL FAN - A centrifugal fan for use with an engine includes a hub defining a rotational axis, a plurality of blades arranged about the rotational axis, and a screen coupled to the hub and blades for co-rotation therewith. The hub, the blades, and the screen are integrally formed as a single piece.02-27-2014
20140165933DUCT FOR ENGINE BAY COOLING AND VENTILATION - An air cooling system provides cooling air within an engine bay of a vehicle. The vehicle includes a radiator and a cooling fan, the cooling fan is operable to force air to flow through the radiator, and the cooling fan is also operable to blow air within a blow zone away from the cooling fan and into the engine bay. The air cooling system includes a duct having a first end that defines an inlet, a second end that defines an outlet, and a sidewall that extends between the first end and the second end. The duct is operable to be mounted to the vehicle with the second end and the outlet disposed within the downstream blow zone such that air exiting the outlet is blown by the cooling fan toward the engine bay.06-19-2014
20140216370ENGINE AND ENGINE-OPERATED WORKING MACHINE - In an engine including a cooling fan provided at one end of a drive shaft to cool the engine, a muffler is attached such that a longitudinal direction thereof coincide with a direction of gravity, and a muffler accommodating chamber is formed by a muffler cover. A portion of cooling air generated by the cooling fan is introduced into the muffler accommodating chamber so as to cool the muffler. At the muffler accommodating chamber, a cooling air outlet is provided at an upper end of a cooling passage, such that the waste heat of the muffler is discharged from the cooling air outlet to the outside during the stop of the engine. A cooling air inlet is disposed below the cooling air outlet such that the cooling air flows from the lower side to the upper side of the muffler.08-07-2014
20140261259COOLING SYSTEM FOR AIR-COOLED ENGINE - An air-cooled internal combustion engine includes an engine block, a blower assembly including a blower housing and a fan, and a static cover. The static cover includes multiple air intake openings and is configured to prevent user access to a moving component of the engine. The blower housing is configured to at least partially direct air to the engine block. The fan is configured to move air into the blower assembly through the air intake openings when rotating in a first direction in a cooling mode and to move air out of the blower assembly through the air intake openings when rotating in an opposite second direction in a debris-removal mode.09-18-2014
20150292452SLIDE-IN MOUNTABLE FUEL PUMP ASSEMBLY - A system and method for engaging a slide-in mountable fuel pump assembly with a fan cover of an internal combustion engine is disclosed. The fuel pump assembly includes a fuel pump configured to pump fuel from a fuel source to the engine and a mounting bracket affixed to or formed integrally with the fuel pump and configured to slidingly engage a fan cover of the engine so as to enable selective mounting and removal of the fuel pump assembly to and from the fan cover. The mounting bracket further includes a main plate affixed to or formed integrally with the fuel pump and a track formed on each of opposing sides of the main plate, with the track configured to slidingly engage a mating feature formed on the fan cover of the engine so as to selectively mount the fuel pump assembly to the fan cover.10-15-2015
20160251999FAN DRIVE ASSEMBLY09-01-2016
123410660 Suction 1
20080223319Cooling Structure of Construction Machine - Problem: To improve a soundproof performance on an air intake side of a cooling structure of a construction machine without enlarging an air intake chamber.09-18-2008
123410670 Jacketed cylinder 1
20120266830GENERAL GASOLINE ENGINE - The invention discloses a general-purpose gasoline engine, comprising a cylinder block, a cylinder head main body (10-25-2012
123410690 Finned cylinder and/or head 3
20090188451ENGINE COVER WITH COOLING FINS - An automotive engine cover is provided that at least partly covers an automotive engine in an automotive engine compartment. The engine cover, includes, but is not limited to cooling fins that are made of a metallic or ceramic material. The automotive engine cover is provided with improved cooling effect as compared to known automotive engine covers. The improved cooling effect prolongs the life-time of the automotive engine cover. The improved cooling effect also help to increase the life-time of other components in the engine compartment, which otherwise may degrade, deform or even melt due to heat transfer from heat-generating components in the engine. In turn, this paves the way for the design of engines which may generate even more heat than today.07-30-2009
20150027390Exhaust Gas Recirculation System for a Motorcycle Engine - An EGR gas passageway member is removably attached to a motorcycle cylinder assembly between the cylinder head and the cylinder of said motorcycle cylinder assembly in manner such that presence of the EGR gas passageway member is partially concealed. The EGR gas passageway member allows motorcycles to be provided with EGR systems without significantly impacting the aesthetic appearance of the engines of such motorcycles.01-29-2015
20150053154Monoblock Engine - The present invention discloses a monoblock engine in which the head and the block of the engine are cast integrally. The engine incorporates a cylinder and water coolant jackets, intake manifold and an exhaust manifold, vertical intake and exhaust valves, core removal holes, and a push-fit type cylinder liner which is secured in place so that leakage of fuel from the cylinder is eliminated. The water coolant jackets for the head and the block are connected using four water jacket gateways or connectors. The monoblock is fitted with the crankcase using a leak proof & robust flange-joint and mechanical fastening system which is easy to install. The invention is embodied for a single cylinder engine as well as multi-cylinder engines. By integrating cylinder head and manifolds with block, the critical joint between head and block and head and intake Manifold will be eliminated. At the same time, gasket and mechanical fasteners for tightening also can be eliminated. The water jacket design is communized & optimized for both head and block for better performance.02-26-2015
123410700 Engine encasing air duct; e.g., cowling 8
20080210180AIR-COOLED ENGINE HEAT EXTRACTOR - A heat extractor for attachment to an air-cooled engine. A cooling fan extends from the engine and is rotated by action of the engine. The heat extractor comprises a first thermally conductive surface for attachment to the engine, a plurality of flaps extending from the first surface, wherein when the heat extractor is attached to the engine the flaps extend away from the engine, a flared end region formed in the first surface, the flared end region nearest the cooling fan when the heat extractor is attached to the engine and wherein rotation of the cooling fan causes air to be drawn across the first surface, the plurality of flaps and the flared end region.09-04-2008
20080308048COMPOSITE DUCT ASSEMBLY - A carbon composite duct assembly has a duct body having an opening. The duct body extends along an axis. The opening extends transversely to the axis. The duct body has a carbon composite fabric layer. The duct body has an axial flange extending along the axis and a peripheral flange extending along the opening. The axial flange and the peripheral flange overlap forming a corner of the carbon composite fabric layer.12-18-2008
20090235876Portable gas powered internal combustion engine arrangement - A gas powered internal combustion engine in which the gas is provided from pressurized liquid gas in an LPG container and in which the LPG container is rigidly mounted adjacent to the internal combustion engine at a preselected angle to be in conductive heat transfer relationship to the internal combustion engine and in vibration receiving relationship to the internal combustion engine whereby the liquified gas in the LPG container is heated and the effective surface area thereof is increased.09-24-2009
20100147234OUTBOARD MOTOR - An outboard motor has an engine, an engine cover forming an engine compartment for holding the engine therein, a ventilation system with an outer outlet ventilation space through which air in the engine compartment flows to the outside of the engine compartment, and a generator. The ventilation system includes a case disposed in the engine compartment and forming an air discharge passage leading to the outer outlet ventilation space. A fan is placed in the air discharge passage to deliver air by pressure from the engine compartment to the outer outlet ventilation space. The air discharge passage has an inlet ventilation passage formed in an upper space in the engine compartment and opening upward. The engine compartment holding the engine therein can be efficiently ventilated, and ventilation air can effectively cool the engine and can effectively suppress temperature rise in the engine compartment.06-17-2010
20120067305COVER STRUCTURE OF GENERAL-PURPOSE LIQUID-COOLED ENGINE - A general-purpose liquid-cooled engine delivers a coolant cooling an engine body to a radiator and delivers a cooling air to the radiator by use of a cooling fan to cool the coolant. A cover structure of the general-purpose liquid-cooled engine covers the engine body and the radiator. An engine cover is configured so as to allow the cooling air to be delivered to the radiator. A muffler cover covers a muffler disposed adjacent to an external surface of the engine cover. An exterior cover covers an entire engine including the engine cover and the muffler cover.03-22-2012
20130239911ENGINE POWER TOOL - An engine for rotating a saw chain serving as a rotating tool includes an engine main body including a crank case and cylinder. A cooling fan for generating forced cooling air is attached to a protruding end of a crank shaft. An engine cover for covering a top of the cylinder is provided in the engine, and an air guiding rib extending in a direction of crossing the cooling air is provided in an inner circumferential surface of the engine cover. In the engine cover, opening portions for exhausting the cooling air outside are provided.09-19-2013
20150068470VENTILATION STRUCTURE FOR ENGINE COMPARTMENT - A ventilation structure of an engine compartment that houses an engine and is adjacent to a cooling fan that supplies cooling air to a heat exchanger in a form of a radiator is provided. A ventilation structure of the engine compartment includes: an exterior cover with which the engine and the cooling fan are covered; and a ventilation duct that includes an inner surface of the exterior cover, in which a first end of the ventilation duct is open in the engine compartment while a second end of the ventilation duct intercommunicates with a surrounding area of the cooling fan.03-12-2015
20150330284COOLING SYSTEM FOR ENGINE ROOM - An engine room cooling system may include an encapsulation covering an intake manifold and an exhaust manifold of an engine of a vehicle, a main duct guiding traveling wind flowing into the vehicle to a side of the encapsulation, an encapsulation intake duct branched from the main duct and formed toward the intake manifold within the encapsulation, an encapsulation exhaust duct branched from the main duct and formed toward the exhaust manifold within the encapsulation, and an intake duct valve disposed adjacent to the encapsulation intake duct and controlling air flow from the main duct to the encapsulation intake duct or to the encapsulation exhaust duct.11-19-2015

Patent applications in class Air-cooled

Patent applications in all subclasses Air-cooled

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