| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 123900150 |
With means for varying timing
| 1304 |
| 123900390 |
Rocker
| 204 |
| 123900120 |
Hydraulic system
| 154 |
| 123900480 |
Tappet
| 129 |
| 123900110 |
Electrical system
| 90 |
| 123900600 |
Cam
| 60 |
| 123900330 |
Lubrication
| 60 |
| 123900310 |
Camshaft drive means
| 32 |
| 123900270 |
Overhead camshaft
| 17 |
| 123900650 |
Spring
| 9 |
| 123900220 |
Plural valve trains, single actuator
| 9 |
| 123900240 |
Valve driven closed
| 7 |
| 123900140 |
Pneumatic system
| 7 |
| 123900280 |
With nonvalving movement (e.g., about valve stem) | 5 |
| 20090235882 | Spring Retainer and Spring System - A spring retainer can reduce the set height and mass of a coil spring. The spring retainer has a retainer body attached to a stem end of a valve and a circumferential plate-like spring part having an inner circumferential part supported by the retainer body and resiliently supporting an end of the valve spring. A spring constant of the plate-like spring part is made higher than a spring constant of the valve spring, so that the plate-like spring part deflects after the valve spring is compressed, to provide a two-step load characteristic and reduce the set height, compressed height, and mass of the valve spring. It can also reduce the height and mass of the spring retainer. A spring system formed by combining the spring retainer and valve spring with each other will be compact and lightweight. | 09-24-2009 |
| 20090272344 | Ball Type Valve Rotator - An improved ball type valve rotator is provided that includes a main body segment having a bottom wall with an upper surface, and a body cap that overlies the main body segment. A ball cages assembly is housed between the main body segment and the body cap. The ball cages assembly includes multiple ramps with lower surfaces that are spaced from the bottom wall upper surface of the main body segment. This allows the multiple ramps to deflect toward the bottom wall upper surface of the main body segment. The multiple ramps can deflect independently of each other, so that different distances can be defined between the different ramps and the bottom wall upper surface of the main body segment. In so doing, the ball cage assembly can accommodate non-uniform applications of force into the valve rotator. | 11-05-2009 |
| 20100186690 | VALVE ROTATOR ASSEMBLY - A valve rotator for use in an internal combustion engine. The valve rotator including a plurality of retention members, each able to removeably and rotateably couple the stationary housing to the rotating body. The plurality of retention members are defined by a plurality of recesses allowing each of the plurality of retention members to deflect with respect to the stationary housing. The retention members allow the rotating body to be removed from the stationary housing without the need for permanently damaging the stationary housing (e.g. during rebuilding). Additionally, the retention members may be incorporated on housings that have undergone heat treatment processes without rendering the housings susceptible to cracking or damage. | 07-29-2010 |
| 20090050089 | Rotary Valve Internal Combustion Engine - A rotary cylinder valve, reciprocating piston, internal combustion engine, has a crankshaft | 02-26-2009 |
| 20090173299 | Valve system for opposed piston engines - The valve system for opposed piston engines essentially comprises a single poppet valve opening into the common combustion chamber between the two opposed pistons of each piston and cylinder pair. The engine for which the mechanism is adapted includes a rotating internal cylinder surrounding each piston pair, with a stationary outer cylinder or case surrounding the rotating cylinder. The valve is pivotally attached at one side or end thereof to the edge of the valve port of the rotating cylinder, and is actuated by an arm or arms having guides (rollers, etc.) at the distal end(s) thereof, which are captured in corresponding cam track(s) or channel(s) formed in the fixed outer cylinder or case of the engine. The cam track has a variable radius, with the valve arm(s) and guide(s) alternately lifting and lowering as the guide(s) travel(s) in the variable radius cam track(s), thereby closing and opening the valve. | 07-09-2009 |
| 123900210 |
Follower displaced axially of camshaft | 4 |
| 20090007868 | INTERNAL COMBUSTION ENGINE CAM FOLLOWER ARRANGEMENT - An internal combustion engine has cylinder head assembly. First and second cams are disposed on a camshaft for rotation therewith. A first cam follower has a first end journaled on a cam follower shaft and a second end abutting an end of a first valve. A second cam follower has a first end journaled on the cam follower shaft and a second end abutting an end of a second valve. A spacer is disposed at least partially around the cam follower shaft. The spacer is disposed between the cam followers such that the first cam follower is disposed between the spacer and a camshaft support and the second cam follower is disposed between the spacer and another camshaft support. A cylinder head assembly, a method of accessing the valves, and embodiments providing for the supply of lubricant to the cam followers are also disclosed. | 01-08-2009 |
| 20100175652 | Valve Drive for Gas Exchange Valve of an Internal Combustion Engine, Comprising an Axially Movable Bearing - A valve drive assembly for selectively actuating a pair of valves of an internal combustion engine generally consisting of a pairs of cam supports rotatably fixed an axially displaceable on a camshaft, each provided with at least two cam profiles; means rotatably fixed and axially displaceable relative to the cam shaft, interposed between the cam supports; and means for selectively axially displacing the cam supports and the interposed means as a unit. | 07-15-2010 |
| 20100242884 | Valve drive arrangement - In a valve drive device, especially for an internal combustion engine including a camshaft with a cam element which is axially movably supported on the camshaft but in a rotationally fixed manner, the cam element includes a gate structure and an actuation device is provided with at least one shift element for engagement with the gate arrangement for axially displacing the cam element and the shift element has a rotationally asymmetrical basic shape in order to follow the gate structure when placed in engagement therewith. | 09-30-2010 |
| 20150053159 | Externally Driven Interior Axial Cam - An axial cam with a plurality of followers mounted within its diameter drives the followers in both axial directions. The followers operatively actuate valves such as those of an internal combustion engine. The cam can be driven about its exterior perimeter, providing an axially compact embodiment. The phasing of select followers can be established by modifying the azimuth positions of those followers with the cam in operation. By providing the cam with a symmetric actuating profile its followers can be linked to alternately actuate same-function valves in different engine cylinders. | 02-26-2015 |
| 123900320 |
With alternate interruption of drive train | 4 |
| 20080302321 | DECOMPRESSOR FOR INTERNAL COMBUSTION ENGINE - A decompressor for an internal combustion engine that is capable of preventing the dropping-off of the decompression shaft during maintenance work includes a falling-off prevention pin inserted into a pin insertion hole having an opening to the outer circumferential surface of a camshaft and intersecting, at least partially, an insertion hole. A decompression shaft is inserted and fitted into the insertion hole. The falling-off prevention pin engages with the decompression shaft while the decompression shaft is allowed to rotate. The decompression shaft is prevented from moving in the axial direction of the decompression shaft. The opening of the pin insertion hole of the camshaft into which the falling-off prevention pin is inserted is blocked by a bearing. A swing portion includes a bearing-restriction portion formed so as to protrude towards the bearing. The bearing-restrict portion restricts the movement of the bearing in the axial direction of the camshaft. | 12-11-2008 |
| 20090151681 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus according to an exemplary embodiment of the present invention includes an outer body connected with a valve for opening and closing the valve, an inner body that is reciprocally disposed within the outer body and contacts a first input cam configured to an input shaft, a lost motion spring disposed between the outer body and the inner body, a connecting portion selectively connecting the outer body and the inner body, a hydraulic pressure supplying portion supplying hydraulic pressure to the connecting portion, and a lubrication circuit supplying lubricant to a contacting portion of the first input cam and the inner body. | 06-18-2009 |
| 20110162608 | METHOD AND SYSTEM FOR CONTROLLING ENGINE EXHAUST - An engine having one of a plurality of exhaust valves in each cylinder that may be deactivated is disclosed. In one example, one exhaust valve of each cylinder is deactivated in response to engine speed. The engine may have improved engine torque at low engine speeds and reduced time to torque (e.g., turbo lag). | 07-07-2011 |
| 20120017860 | PRESSURE BALANCED ENGINE VALVES - A split-cycle engine includes a crankshaft rotatable about a crankshaft axis. A compression piston is slidably received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through intake and compression strokes during a single rotation of the crankshaft. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through expansion and exhaust strokes during a single rotation of the crankshaft. A crossover passage interconnects the expansion and compression cylinders. The crossover passage includes crossover compression (XovrC) and crossover expansion (XovrE) valves defining a pressure chamber therebetween. At least one of the XovrC and XovrE valves is a balanced valve. A fluid pressure balancer biases the valve for balancing fluid pressures acting against the valve in both opening and closing directions, reducing the forces required in actuating the valve. | 01-26-2012 |
| 123900200 |
With compound movement of cam follower | 4 |
| 20080257287 | Method and Device for Determining a Switchover Condition in Order to Initiate a Valve Lift Changeover in an Internal Combustion Engine - In a method for determining the switchover condition in order to initiate a valve lift changeover in an internal combustion engine, the torque requirement (TQ REQ) is determined. Also, an operational variable of the internal combustion engine, which is representative for an operational state of the internal combustion engine, is determined. According to the operational variable, a duration of time (T), which is required in the current operational state in order to carry out at least one prepared amount for the valve lift changeover, is determined. An alteration value, which is representative for the alteration of the torque condition (TQ_REQ), is determined. The valve lift changeover is initiated by the duration of time (T) and the alteration value (TQ_REQ) according to the torque requirement (TQ REQ). | 10-23-2008 |
| 20080314340 | Two-step roller finger cam follower assembly having a follower travel limiter - A two-step roller finger follower assembly for use in conjunction with a camshaft of an internal combustion engine, wherein the camshaft has at least one first lobe and at least one second lobe. The roller finger follower assembly comprises a follower body for engaging the first cam lobe and having a central aperture, a follower pivotably disposed on the follower body in the central aperture for engaging the second cam lobe, and a limiting stop disposed on the follower body for engaging a feature on the follower to limit travel of the follower body with respect to the follower. The limiting stop prevents overtravel of the follower body during valve-deactivation mode of the assembly, thus preventing excessive leak down of an associated hydraulic lash adjuster. | 12-25-2008 |
| 20100083922 | VARYING THE PHASE AND LIFT OF A ROCKER ARM ON A CAMSHAFT ACTUATING A VALVE OR INJECTOR - In an internal combustion engine using poppet type valves, a center pivot rocker arm is moved through a specific path wherein the roller in contact with a cam is moved to alter the phasing of the valves or injectors in the engine. Depending on the interface between the valve or injector and the rocker arm, the rocker ratio of the rocker arm may be altered, giving a change in lift as well. By positioning a control arm at desired points on either side of a centered position, and rotating the control arm about its own pivot point via an arm actuator, phase change is achieved. The arm actuator controls the location of the control arm and thus the timing of the valve or injector relative to the rotation of the cam. Advanced, centered, and retarded phase change is possible depending upon the movement of the control arm. | 04-08-2010 |
| 20150330270 | VALVE SYSTEM FOR A MULTI-CYLINDER ENGINE - A valve system includes: a cam shaft including a shaft section and a plurality of cam element sections; and a plurality of operation members that moves the cam element sections in an axial direction. The plurality of operation members include a common operation member that is provided in common between end face cams opposed to each other of the cam element sections of two cylinders disposed adjacent to each other and continuous in ignition order and that engages with the respective end face cams when both the cam element sections are close to each other, and individual operation members that are individually provided for end face cams opposed to each other of the cam element sections of two cylinders disposed adjacent to each other and discontinuous in ignition order and end face cams located at opposite ends of a cylinder row and that engage with the respective end face cams. | 11-19-2015 |
| 123900610 |
Rod | 1 |
| 20080295790 | Independently moving rod with holder for lobed journal crank to produce The Apex Engine - The Independently Moving Rod | 12-04-2008 |
| Entries |
| Document | Title | Date |
|---|
| 20080223320 | VARIABLE COMPRESSION RATIO MECHANISM FOR AN INTERNAL COMBUSTION ENGINE - An internal combustion engine has a mechanism to control crankshaft axis position and control combustion chamber compression ratio. The mechanism includes control ring, rotatably supporting crankshaft, and rotatably installed in the engine housing. The control shaft is installed in the engine housing and parallel to the crankshaft. The control shaft pinion elements meshing with control ring toothed elements, and rotating control ring, resulting in changing of crankshaft relative position to the cylinder head; this will change engine compression ratio. The crankshaft toothed part constantly meshing with toothed part of the engine output shaft, transferring rotary moving force from crankshaft to engine output shaft. | 09-18-2008 |
| 20080230019 | DUAL INTAKE VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINE - An intake valve assembly of an internal combustion engine. The intake valve assembly comprises a primary valve, a secondary valve mounted about the primary valve coaxially therewith, a primary valve spring for normally biasing the primary valve toward a closed position, a secondary valve spring for normally biasing the secondary valve toward a closed position, and a secondary valve lifter fixed to the primary valve and axially spaced from the secondary valve when both the primary and secondary valves are in closed positions. The secondary valve is operated mechanically by the secondary valve lifter and fluidly in response to pressure differential between the intake passage and the combustion chamber. The secondary valve is engageable with the primary valve through the secondary valve lifter after opening of the primary valve. The primary and secondary valve springs are normally contracted for continuously biasing the valves toward the closed position thereof. | 09-25-2008 |
| 20090000579 | VALVE TRAIN WITH OVERLOAD FEATURES - A valve train for use in an engine is provided. The valve train includes a rocker arm assembly having a valve side arm and a cam side arm. A valve is coupled to the engine and is in contact with the valve side arm. A pushrod is reciprocatable by a camshaft and is in contact with the cam side arm. An overload feature is located on at least one of the rocker arm assembly or the pushrod. The overload feature has a reduced cross-sectional area calibrated to activate at a predefined load. | 01-01-2009 |
| 20090013943 | Switchable support element for a valve train of an internal combustion engine - The invention proposes a switchable support element ( | 01-15-2009 |
| 20090020083 | Engine Valve Operating System - In an engine valve operating system, a camshaft ( | 01-22-2009 |
| 20090241870 | VARIABLE INTAKE VALVE ASSEMBLY FOR INTERNAL COMBUSTION ENGINE - An intake valve assembly of an internal combustion engine that includes a combustion chamber and an intake passage. The intake valve assembly comprises an intake valve movable into and out of engagement with a valve seat, a reciprocating primary valve tappet, and a secondary valve tappet axially non-movably attached to the primary valve tappet. The intake valve is mounted to the primary valve tappet and axially freely movable relative thereto. The primary valve tappet is configured for axially engaging the first intake valve to limit the axial movement thereof said intake valve away from the valve seat. The secondary valve tappet is configured for axially engaging the intake valve for mechanically moving the intake valve away from the valve seat. The intake valve is further operated fluidly in response to pressure differential between the intake passage and the combustion chamber. | 10-01-2009 |
| 20090277405 | CONTINUOUS VARIABLE VALVE LIFT DEVICE - A continuous variable valve lift (CVVL) device opens and closes a valve by pressing a rocker arm through a rotational force transmitted from a drive cam. The CVVL device includes a drive arm, which is pivotably mounted such that one side thereof presses a rocker arm, a variable arm, which is pivotably mounted, and pushes and pivots the drive arm when pivoted, and a transmission arm, which is coupled with a transmission roller, which is located between the drive cam and the variable arm, at one end thereof and is pivoted such that a position where the transmission roller comes into contact with both the drive cam and the variable arm is changed. | 11-12-2009 |
| 20090277406 | POWER UNIT FOR VEHICLE - Provided is a power unit for a vehicle including an engine main body of an engine having: a valve system capable of changing operational modes of each engine valve; valve controlling apparatuses for controlling operations of the valve system; and a crankcase housing a transmission, the engine main body being mounted on a vehicle frame. The power unit for a vehicle achieves reduction in size of the engine main body in a direction along the axis of a cylinder, and increases the freedom of arranging parts designed to be placed on an upper end portion of the engine main body. The valve controlling apparatuses are attached to the top surface of the crankcase. | 11-12-2009 |
| 20100012059 | Roller Bearing, Camshaft support structure,and internal combustion engine - A roller bearing includes an outer ring formed by connecting a plurality of arc-shaped outer ring members in a circumferential direction and a plurality of rollers arranged along an inner diameter surface of the outer ring. A slope surface ( | 01-21-2010 |
| 20100064992 | Eight-Stroke Engine Cycle - An eight-stroke engine cycle may include a first stroke forming an intake stroke and including opening an intake valve and providing a first fuel mass to the combustion chamber. The second stroke may form a first compression stroke and the third stroke may form a first expansion stroke including a first power stroke. The fourth and sixth strokes may form a second and third compression strokes and the fifth and seventh strokes may form a second and third expansion strokes. A second fuel mass may be provided to the combustion chamber during the fourth or sixth stroke. The intake valve may be in a closed position during the second and third expansion strokes and an exhaust valve in communication with the combustion chamber may be in a closed position during the second and third compression strokes. The eighth stroke may form an exhaust stroke including opening the exhaust valve. | 03-18-2010 |
| 20100071641 | SWAGING HOLD METHOD, SWAGING HOLD STRUCTURE, SWAGING ROLLER, SWAGING MACHINE, AND SWAGING HOLD WORKPIECE - In addition to the pressure for swaging applied when swaging is performed, a pressure in the direction the same as the direction of the holding force exerted by a swaged portion is applied to a pressure receiving edge portion of a bearing holder by the pressure applied by a swaging roller. As a result, the elastic deformation in a circumferential wall portion that is not bent is advanced and the amount of elastic deformation of the bearing holder in the axial direction is reduced, so that it is possible to increase the difference in the amount of elastic deformation between the bearing holder and an outer race. Thus, the axial residual stress in the bearing holder is increased after the swaging is completed, as compared to the case of the ordinary swaging. Accordingly, it is possible to increase the holding force for holding the outer race. | 03-25-2010 |
| 20100162976 | Camshaft and Production Process Therefor - A camshaft assembly, particularly for use in an internal combustion engine, having a shaft base body and a plurality of cam parts. In order to be able to selectively shut down individual cylinders, cam parts are provided with cams which are arranged so as to be rotationally fixed and axially displaceable in relation to the shaft base body. Depending on a desired sequence of axially fixed and axially displaceable cam parts, it is proposed to arrange the axially displaceable cam parts on a longitudinally extending profile in an axially displaceable manner and to push the axially fixed cam parts—insofar as these are necesary—over or across the receiving area for the axially displaceable cam parts and to secure them to the shaft. | 07-01-2010 |
| 20100170458 | CONCENTRIC CAM WITH CHECK VALVES IN THE SPOOL FOR A PHASER - A camshaft assembly for an internal combustion engine has a hollow outer shaft with slots along its length and an inner shaft with holes along its length. The holes on the inner shaft are aligned with the slots on the outer shaft. A first set of cam lobes are fixed to the outer shaft and a second set of cam lobes are placed on the slots of outer shaft with a clearance fit. A means fixes the second set of cam lobes to the inner shaft, while simultaneously allowing the second set of cam lobes to be a clearance fit to the outer shaft. The means fixing the second set of cam lobes to the inner shaft may be a hollow pin which is hydroformed or a rivet insert which is expanded by insertion, pulling, and removal of a threaded rod. | 07-08-2010 |
| 20100224145 | Built-Up Camshaft - The invention relates to a method for producing an assembled camshaft and to an assembled camshaft, with at least one functional component that is produced in a separate manufacturing process and has an inner recess for receiving the shaft. The shaft is widened at least in sections in the area in which the functional component is to be secured, and the recess in the functional component for receiving the shaft is widened in the shape of a funnel on at least one side and over at least a section of its axial length, the opening having a diameter which corresponds to at least the diameter of the widened shaft section, the outer surface of the shaft in the longitudinal direction of the shaft axis being provided with ridges which are distributed over the outer circumference of the shaft by material shaping of the outer circumference of the shaft by means of knurling. The functional component, the recess in which is substantially round, and which, in the section that is widened in a non-funnel shape, has a diameter which is somewhat larger than the diameter of the shaft adjacent to the widened section and is somewhat smaller than the diameter that is described by the ridges distributed over the outer circumference of the shaft, is first pushed onto the widened section of the shaft using the side that is widened in a funnel shape, the ridges partly becoming embedded in or being moulded into the recess in the functional component essentially by means of moulding of the material of the functional component in the area of said recess, and the functional component optionally being elastically widened to a small extent so that the functional component is force-fitted and form-fitted to the shaft. | 09-09-2010 |
| 20100242873 | Valve drive arrangement - In a valve drive arrangement for an internal combustion engine, with a camshaft including at least one cam element which is axially movable by means of a switching gate structure for adjusting the valve drive, and a sensor unit for determining an axial control position of the cam element, the sensor unit has at least a first sensor element coupled to an axial movement of the cam element whose operation position can be determined by a corresponding sensor element. | 09-30-2010 |
| 20110088642 | VALVE TRAIN SYSTEM OF INTERNAL COMBUSTION ENGINE - An object of the present invention is to simplify a valve train system that can change valve operation characteristics of an intake valve(s) and/or an exhaust valve(s) mounted on an internal combustion engine while improving the response in changing valve operation characteristics. To achieve this object, according to the present invention, a valve train system of an internal combustion engine that can change valve operation characteristics of an intake valve and/or an exhaust valve comprises a plurality of changing mechanisms that change valve operation characteristics by connecting/disconnecting a plurality of power transmission members provided between a cam and a valve to/from each other, a switching pin that is provided in each changing mechanism in such a way as to be able to move forward and backward to provide switching between connection and disconnection of the plurality of power transmission members, an actuator that generates power for moving the switching pin forward and backward, and a distribution mechanism that distributes the power generated by one actuator to a plurality of switching pins. | 04-21-2011 |
| 20110114045 | SLIDING MEMBER AND SURFACE TREATMENT METHOD FOR THE SAME - Abrasion resistance is further enhanced in a sliding member used in an internal combustion engine. | 05-19-2011 |
| 20110139099 | Dual Intake Valve System with One Deactivation Valve and One Multi-Lift Valve for Swirl Enhancement - In a dual intake valve arrangement for an internal combustion engine, a variable valve lift system controls two intake valves for one or more engine cylinders. In each cylinder, one of the intake valves includes an associated two-step actuation device, and the other includes an associated valve deactivation device. To improve in-cylinder air flow turbulence, one valve may be operated in a high-lift or low-lift state while the other valve may be deactivated. | 06-16-2011 |
| 20110192363 | VALVE ARRANGEMENT FOR A COMBUSTION ENGINE - This invention relates to a valve arrangement in a combustion engine for controlling inlet and outlet of gas mixtures, comprising a valve ( | 08-11-2011 |
| 20110214631 | VARIABLE VALVE DEVICE AND METHOD OF CONTROLLING THE SAME - A variable valve device and a method of controlling the variable valve device, wherein, in order to prevent a shortage of oil film in a spool section, only the spool of a solenoid on/off valve is moved at a timing not affecting operation of an air intake valve, to thereby stabilize operation of the solenoid on/off valve. | 09-08-2011 |
| 20110271917 | VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present invention makes it possible to favorably change valve-opening characteristics of a valve using a simplified configuration without leading to an increase in the number of components and also without causing an increase of friction due to sliding, in a valve operating apparatus for an internal combustion engine in which the valve-opening characteristics of the valve are variable. A changeover mechanism for switching the connection/disconnection of rocker arms disposed between cams and a valve is provided. When a slide pin reaches a displacement end in the retreating direction of changeover pin, the biasing force of a return spring acting on changeover pins is received by an engaging part between a notch part provided in the slide pin and a lock pin in a state separated from a camshaft. | 11-10-2011 |
| 20110271918 | VARIABLE VALVE OPERATING APPARATUS FOR INTERNAL COMBUSTION ENGINE - Provided is a variable valve operating apparatus for an internal combustion engine, which can favorably reduce electric power consumption in a vehicle system that may stop the internal combustion engine during power-up of the vehicle system. | 11-10-2011 |
| 20110277710 | VALVE STOPPING DEVICE FOR INTERNAL COMBUSTION ENGINE - Disclosed is a valve stopping device for an internal combustion engine that does not allow valves for all cylinders to stop in the closed state even in the event of a failure. | 11-17-2011 |
| 20110283961 | ADJUSTABLE CAMSHAFT ARRANGEMENT - A camshaft arrangement having two shafts disposed coaxially, one inside the other. A connecting element is inserted into a receptacle in the inner shaft, such that a part of the connecting element protrudes out of the receptacle, and that the protruding part is inserted at least partially in a recess, the recess is designed to be open at least toward an end face of the inner shaft cam, and that the protruding part has at least two opposite side surfaces contacting two corresponding inner surfaces of the recess of each inner shaft cam with a force fit. The further connecting element is designed as a radial pin pressed through a hole in the inner shaft cam element into a receptacle of the inner shaft. | 11-24-2011 |
| 20110315100 | CAMSHAFT - A camshaft of a combustion engine may include a drive element and first and second roller bearings for mounting the camshaft in the combustion engine. The drive element and at least the first roller bearing may be adjacent and exchangeable with one another. | 12-29-2011 |
| 20120012075 | INTERNAL COMBUSTION ENGINE COMPRISING AT LEAST ONE CAMSHAFT - An internal combustion engine, the engine having at least one camshaft, the camshaft is interconnected to the internal combustion engine through a plurality of rotating members, rotating members include at least one roller element and a predetermined load limit. The rotating members are configured individually along the camshaft and are positioned according to an actual internal combustion engine operating load value. | 01-19-2012 |
| 20120024244 | CAMSHAFT SPEED SENSOR TARGET - A method of constructing a speed target on a camshaft in a combustion engine is disclosed. In applying the method a multiple number of ring segments are positioned around a portion of the camshaft. The multiple number of ring segments form a closed ring having a variable outer magnetic surface for reading by a speed sensor. Further, the multiple number of ring segments are secured in a radial direction and in a circumferential direction with respect to the camshaft. | 02-02-2012 |
| 20120037102 | Valve drive control device - In a valve drive control device, in particular for an internal combustion engine, for controlling the position of a cam element on a camshaft, the valve drive comprises at least one control armature element and a control element connected to the control armature element for engagement with a control gate of the cam element for controlling axial positioning of the cam element on the camshaft. The valve drive control device has a coupling unit which is provided to couple the control armature element and the control element movably to each other with at least one degree of freedom. | 02-16-2012 |
| 20120037103 | CAMSHAFT - A camshaft transport securing mechanism for an internal combustion engine. The camshaft having at least one transport securing mechanism, the transport securing mechanism axially fixing at least one bearing, wherein the transport securing mechanism is one of released by wear or disintegration during operation of the internal combustion engine. | 02-16-2012 |
| 20120067309 | APPARATUS FOR AND METHOD OF CONTROLLING VARIABLE VALVE TIMING MECHANISM - The present invention relates to an apparatus for and a method of controlling a variable valve timing mechanism. The valve timing mechanism changes over between a first cam for which the closing timing IVC of the intake valve is after intake bottom dead center, and a second cam for which the closing timing IVC is closer to intake bottom dead center than the closing timing IVC with the first cam. Here at the time of stopping the internal combustion engine, the valve timing mechanism changes over to the first cam, and the initial intake stroke performs operation at low effective compression ratio. In the second and subsequent intake strokes, the valve timing mechanism changes from the first cam to the second cam. | 03-22-2012 |
| 20120073529 | TRANSMISSION DEVICE BETWEEN TWO CAMSHAFATS OF AN INTERNAL COMBUSTION ENGINE - An internal combustion engine includes a driving shaft, a pair of camshafts for driving engine valves, a transmission connecting the driving shaft to a first of said camshafts and a transmission connecting the first camshaft to the second camshaft. The transmission connecting the two camshafts to each other includes a pair of articulated parallelogram mechanisms each having two crank members rotatable with end portions of the camshafts and connected to each by means of a connecting rod. The crank members are made up of circular discs eccentrically mounted on the camshafts and rotatably received in circular openings formed at the ends of the respective connecting rod. The two crank members rotatable with the same camshaft are spaced from each other by a determined angle. | 03-29-2012 |
| 20120073530 | ARRANGEMENT FOR COUPLING TWO COMPONENTS OF AN INTERNAL COMBUSTION ENGINE ARRANGED MOVABLE RELATIVE TO EACH OTHER - An arrangement for coupling two components of an internal combustion engine that are arranged movable relative to each other is provided, in particular, for switching multi-stage valve drives, with at least one coupling element ( | 03-29-2012 |
| 20120137994 | ROLLERIZED CAMSHAFT SUPPORT FOR TYPE 1 DIRECT ACTING VALVETRAIN AND INTERNAL COMBUSTION ENGINE EMBODYING SAME - Featured is a rollerized camshaft support to rotatably support a camshaft of a Type I valvetrain, the camshaft having at least one rotating surface. Such a rollerized camshaft support includes at least one rollerized bearing and at least one bearing support for each of the rollerized bearings, where each bearing support includes a bearing upper support element and bearing lower support element. Each rollerized bearing includes an inner raceway; an outer raceway and a plurality of rolling elements disposed between the inner and outer raceways and extending widthwise across the raceways. The bearing upper support element and bearing lower support element are configured so as to receive there between a rollerized bearing. Also, the bearing lower support element is configured and arranged so to complement a portion of a configuration of the Type I valve train. | 06-07-2012 |
| 20120145097 | ENGINE ASSEMBLY INCLUDING CAMSHAFT WITH MULTIMODE LOBE - An engine assembly may include an engine structure, a first valve, a first valve lift mechanism and a first camshaft. The engine structure may define a first combustion chamber and a first port in communication with the first combustion chamber. The first valve may be located in the first port and the first valve lift mechanism may be engaged with the first valve. The first camshaft may be rotationally supported on the engine structure and may include a first double lobe engaged with the first valve lift mechanism. The first double lobe may define a first valve opening region including a first peak and a second valve opening region including a second peak rotationally offset from the first peak. | 06-14-2012 |
| 20120174882 | CAMSHAFT APPARATUS - Among a plurality of bearings that rotatably support a camshaft ( | 07-12-2012 |
| 20120227688 | ENGINE ASSEMBLY INCLUDING CYLINDER HEAD OIL GALLERY - A cylinder head assembly includes a first member coupled to an engine block and a second member coupled to the first member. The first member defines a first port in communication with a first cylinder and a second port in communication with a second cylinder. The second member defines a longitudinally extending portion located on a first lateral half of the first member. A first control passage and a second control passage are defined between the first member and the longitudinally extending portion of the second member. The second member defines a wall separating the first and second control passages from one another. | 09-13-2012 |
| 20130008396 | CONTROL APPARATUS FOR VARIABLE OPERATION ANGLE MECHANISM - An electronic control unit that controls a variable operation angle mechanism that varies an operation angle of an intake valve reduces an operation angle of the intake valve to a normal startup operation angle after first maintaining the operation angle of the intake valve at a high temperature restart operation angle that is larger than the normal startup operation angle for a predetermined period of time after an engine is stopped. | 01-10-2013 |
| 20130025551 | TUNING AN OVERHEAD VALVE INTERNAL COMBUSTION ENGINE - In a drag racing vehicle, especially one utilizing a V-block engine, valve gap measurement and adjustment, valve spring force measurement, and the like are carried out with the aid of a foot-operated switch removably connectible to a circuit that carries battery current to the vehicle's starter motor. The foot switch is provided with a cable allowing it to be positioned in either side of the vehicle. Operation of the foot switch effects rotation of the engine crankshaft and camshaft through a small angle so that each valve can be brought to a fully closed condition for measurement or adjustment. | 01-31-2013 |
| 20130032105 | METHOD FOR COMPENSATING AN OPERATING IMBALANCE BETWEEN DIFFERENT BANKS OF A TURBOCHARGED ENGINE - A method for controlling differences in cylinder mixtures for a two cylinder bank engine having a turbocharger is presented. In one example, the description includes a method for adjusting valve timing to reduce cylinder mixture variation. | 02-07-2013 |
| 20130055972 | CATALYST TEMPERATURE BASED VALVETRAIN CONTROL SYSTEMS AND METHODS - A system for a vehicle includes a triggering module and a cylinder control module. The triggering module generates a trigger when a catalyst temperature is greater than a predetermined temperature. In response to the generation of the trigger, the cylinder control module: disables opening of an exhaust valve of a cylinder for an exhaust phase of a first combustion cycle of the cylinder; disables opening of the exhaust valve for N combustion cycles of the cylinder that follow the first combustion cycle; and enables opening of the exhaust valve for a second combustion cycle that follows the N combustion cycles. N is an integer greater than zero. | 03-07-2013 |
| 20130087110 | METHOD FOR COMBUSTION MODE TRANSITION - An internal combustion engine is selectably operable in one of homogeneous charge compression ignition (HCCI) mode with low lift intake and exhaust valve profiles and spark ignition (SI) mode with high lift intake and exhaust valve profiles. Transition from a current combustion mode to a desired combustion mode includes phase adjusting the one of the intake and exhaust valves exhibiting a greater effect upon an effective cylinder volume for a given phase adjustment in the desired combustion mode based upon a desired phasing for the desired combustion mode prior to lift adjusting the one of the intake and exhaust valves and adjusting the other of the intake and exhaust valves. | 04-11-2013 |
| 20130118426 | Method for Operating an Internal Combustion Engine and an Internal Combustion Engine - An internal combustion engine includes a power cylinder having a power chamber delimited by a power piston, the power chamber having an intake valve and an exhaust valve, a compression cylinder having a compression chamber delimited by a compression piston, the compression chamber having a fresh charge intake valve, and a flow-through chamber delimited by a flow-through piston and fluidly connected with the compression chamber via a flow-through passage. The flow-through chamber is directly or indirectly connected with the power chamber via a push-out passage. A flow-through valve is disposed in the flow-through passage. A cooler is arranged so as to cool compressed fresh charge flowing through the first flow-through passage. The pistons and the valves are movable such that the cooled, compressed fresh charge is pushed over by the compression piston from the compression chamber into the first flow-through chamber and is ultimately pushed out into the power chamber. | 05-16-2013 |
| 20130160726 | Valve Assembly and Method for High Temperature Engines - Valve assembly and method in which a valve member is connected to an elongated lever arm for controlling communication between two chambers in an engine. The valve assembly is disposed at least partially within one of the chambers, and the valve member is moved between open and closed by an actuator connected to the lever arm. In some disclosed embodiments, a pilot valve is opened to equalize pressure on both sides of the valve member prior to moving the valve member toward the open position. In others, where a piston in an expansion cylinder is driven by hot, expanding gases from a separate combustion chamber or heat exchanger, the exhaust valve is closed before the piston has completed its exhaust stroke, and pressure is allowed to build up in the expansion cylinder to a level corresponding to the pressure in the combustion chamber before the valve member is moved toward the open position. | 06-27-2013 |
| 20130186355 | STARTING OF AN INTERNAL COMBUSTINE ENGINE - A starting system for an internal combustion engine comprising a pressure medium source, means for connecting the pressure medium source to at least two of the cylinders of the engine, a starting valve in connection with each cylinder that is connected to the pressure medium source for controlling the admission of the pressure medium into the cylinder, a control unit for controlling the operation of the starting valves, and an absolute rotary encoder for determining the crank angle of the engine. The system further comprises coupling means arranged between the engine and the absolute rotary encoder for releasably coupling the encoder to the engine. The invention also concerns a method for starting an internal combustion engine and an internal combustion engine. | 07-25-2013 |
| 20130199466 | MULTI-CYLINDER INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING A MULTI-CYLINDER INTERNAL COMBUSTION ENGINE OF SAID TYPE - A system for an engine comprising: a crankshaft with four crank throws, wherein, the first and the second crank throw are arranged offset by 180° CA from the third and the fourth crank throws; four cylinders corresponding to the four crank throws, the four cylinders arranged in two cylinder groups, the first cylinder group comprising the first and second cylinder, and the second cylinder group comprising the third and fourth cylinder; an exhaust manifold, wherein, exhaust lines within each of the two cylinder groups merge forming two component exhaust lines, and the two component exhaust lines merge into an overall exhaust line; and an ignition sequence such that each ignition is offset by 180° CA, and ignition of cylinders within the two cylinder groups is offset by 360° CA. In this way exhaust lines within the exhaust manifold can remain short and backpressure from sequential, adjacent cylinder ignition is minimized. | 08-08-2013 |
| 20130239916 | INTERNAL COMBUSTION ENGINE - An internal combustion engine including at least one cylinder, at least one in-block camshaft, at least one overhead intake valve and at least one overhead exhaust valve, as well as at least one rocker arm bracket per cylinder, the rocker arm bracket having an in particular tubular shaft on which are mounted at least one exhaust rocker arm and at least one intake rocker arm. | 09-19-2013 |
| 20130239917 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - Provided is a control apparatus for an internal combustion engine which can successfully determine whether or not a failure concerning a stopping operation of an exhaust valve has occurred, without the need of providing a dedicated sensor for the failure determination. An intake variable valve operating apparatus ( | 09-19-2013 |
| 20130247849 | SHUNT PULSATION TRAP FOR POSITIVE DISPLACEMENT (PD) INTERNAL COMBUSTION ENGINES (ICE) - A shunt pulsation trap for a positive displacement (PD) internal combustion engine (ICE) reduces pulsation, noise, vibration and harshness (NVH), and overall size of the exhaust system and improves cycle (fuel) efficiency. Generally, a shunt pulsation trap for a PD-ICE is configured to trap and attenuate gas pulsations before discharge to engine outlet and comprises a chamber (trap volume) adjacent to the PD-ICE cavity, therein housed various pulsation dampening means or pulsation containment means, at least one relief port (trap inlet) branching off from the PD-ICE cavity into the pulsation trap chamber and a feedback region (trap outlet) communicating with the PD-ICE outlet. The associated principles, methods and embodiments are disclosed. | 09-26-2013 |
| 20130255606 | CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - An engine includes an intake variable valve mechanism and an exhaust variable valve mechanism. An ECU causes all intake valves in all cylinders to stop in a closed state by means of intake variable valve mechanism when performing a fuel-cut operation, including when the engine is stopped. The ECU causes at least one exhaust valve in all cylinders to stop in an open state by means of exhaust variable valve mechanism. When executing a fuel-cut operation, needless compression can be avoided by stopping the exhaust valves in an open state, while protecting a catalyst from deterioration caused by contact with intake air by stopping the intake valves in a closed state. The amount of oil consumption of the engine, and electric power consumption, vibrations and a tendency for spontaneous ignition to occur at cranking time can be improved. | 10-03-2013 |
| 20130276729 | AIR SPRING SYSTEM FOR AN INTERNAL COMBUSTION ENGINE - A method of supplying air to an air spring biasing one of an intake valve and an exhaust valve of an internal combustion engine to a closed position is disclosed. The method includes: driving an air compressor with a motor prior to starting of the internal combustion engine, the air compressor fluidly communicating with the air spring to supply air to the air spring; determining that a predetermined condition has been reached; starting the engine once the predetermined condition has been reached; and driving the air compressor with a rotating shaft of the engine once the engine has started. | 10-24-2013 |
| 20130284129 | VALVE HOUSING FOR A CONTROL VALVE OF A CAMSHAFT ADJUSTING SYSTEM, AND METHOD FOR PRODUCING A VALVE HOUSING - A valve housing for a control valve of a camshaft adjuster, including a housing flange for fastening to a control unit as well as an essentially cylindrical housing component for accommodating a control piston. It is provided that the housing component is rotatably fixedly attached to the housing flange by a form-locked connection. A valve housing of this type is cost effective to manufacture and has a low weight, while ensuring operational reliability. The invention furthermore relates to a method for manufacturing an aforementioned valve housing. | 10-31-2013 |
| 20130298854 | ENGINE INCLUDING OIL PRESSURE PASSAGE WITH AIR BLEED - An engine assembly includes an engine structure, an air bleed valve and a hydraulically actuated engine component. The engine structure defines a first oil supply passage. The air bleed valve is in communication with the first oil supply passage and purges air from pressurized oil within the first oil supply passage. The hydraulically actuated engine component is in communication with the oil supply passage. | 11-14-2013 |
| 20140026834 | VALVE SYSTEM - A valve system for providing closing force to one or more valves of an engine is provided. In one example, the system comprises a first tappet bore in fluid communication with a second tappet bore via a bidirectional oil passage. The system may provide valve closing forces to assist in the closing of valves coupled to the tappet bores, lowering required valve spring forces. | 01-30-2014 |
| 20140041604 | SECURING DEVICE FOR AN ACTUATING LEVER - A device for securing an actuating lever of a valvetrain of an internal combustion engine to a support element. The actuating lever having a recess and protrusion, to accept a spherical end of the support element, the securing device seated on an upper portion of the protrusion and having side walls seated in an undercut of the support element, for securing the support element with the actuating lever. The securing device having a top bifurcated element, bottom perforated element and a connecting element connecting the top and bottom elements together. | 02-13-2014 |
| 20140060467 | VALVE - Embodiments relate to valves comprising a member such as a plate or poppet, that is moveable relative to a stationary seat. The state of the member may be maintained against opposing forces with relatively little expenditure of energy. According to one embodiment, a poppet displaced from seating in the valve seat, may be held in position against opposing forces tending to close the valve, until a desired flow of gas through the valve has taken place. The poppet may then be released as desired, such that those opposing forces serve to passively close the valve. The valve may be secured in position utilizing mechanical, magnetic, electromagnetic, pneumatic, electrostatic, or hydraulic approaches. Valve embodiments may be particularly suited to controlling gas flows for compression and/or expansion in an energy storage system. | 03-06-2014 |
| 20140060468 | SLEEVE VALVE ASSEMBLY - A sleeve valve assembly. The assembly includes a valve seat, a sleeve valve and an oil path-defining piece. The sleeve valve includes a distal end with a cavity. The distal end contacts the valve seat when the sleeve valve is located in a closed position. The oil path-defining piece includes an inlet port, an outlet port and a plurality of cooling passages. The flange of the sleeve valve is slidably in contact with the oil path-defining piece such that cooling fluid travelling into the inlet port and through the cooling passages enters into the cavity before exiting out the exit port. | 03-06-2014 |
| 20140109847 | ENGINE ASSEMBLY WITH VARIABLE VALVE DISPLACEMENT ON ONE CYLINDER BANK AND METHOD OF CONTROLLING SAME - An engine assembly includes an engine block having a first bank of cylinders and a second bank of cylinders. A crankshaft is supported by the engine block and is configured to be driven by torque due to combustion energy in the first and second banks of cylinders. A first set of valves is operable to control air flow into and out of the first bank of cylinders. Camshafts driven by the crankshaft are operatively connected to the first set of valves to control opening and closing of the first set of valves. A second set of valves is operable to control air flow into and out of the second bank of cylinders. A controller is operatively connected to the second set of valves and is configured to vary at least one of lift, duration, and timing of the second set of valves based on commanded torque at the crankshaft. | 04-24-2014 |
| 20140150740 | Method of Gas Distribution of Internal Combustion Engine - The air, entering the cylinder via intake valve (or coming both: through intake valve and through intake ports in the sleeve), flows out through the exhaust ports in the sleeve at the end of the intake stroke and/or at the beginning of the compression stroke. Thus increase (compared with the conventional internal combustion piston engine—the “ICE”) airflow through the cylinder at large engine loads. | 06-05-2014 |
| 20140158073 | VARIABLE DISPLACEMENT SOLENOID CONTROL - Methods are provided for improved control of valve activation/deactivation mechanisms. One example method comprises, adjusting an electromechanical actuator to actuate cylinder valve deactivation/activation mechanisms. The actuator is operated at multiple levels based on engine operating conditions. | 06-12-2014 |
| 20140182527 | Combustion Engine - A combustion engine can include an engine block having interior and exterior block surfaces and a combustion generating system connected thereto, with the inner block surface defining a cavity therein; an exhaust port between the inner and exterior block surfaces; a crankshaft rotatably fixed within the cavity and configured to rotate around an axis; and leading and trailing blades connected to the crankshaft. During a combustion event, the inner block surface is complementarily shaped to the leading and trailing blades, such that the inner block surface is outside the blades' ranges of travel. A combustion generating system can supply and ignite an air fuel composition to create a combustion force positioned closer to one of the blades, forcing the one of the blades to rotate away from the combustion force, which rotates the crankshaft around the axis. | 07-03-2014 |
| 20140238321 | CAMSHAFT AND CORRESPONDING PRODUCTION METHOD - A camshaft for an internal combustion engine may include a shaft and at least one component that is joined to said shaft. The component may be connected via a joint surface of the component to a joint surface of the shaft. At least one of the joint surface of the component and the joint surface of the shaft may have a predefined roughness only partially on load-critical regions. | 08-28-2014 |
| 20140299079 | DEVICE FOR DELIVERING COMPRESSED AIR FOR PNEUMATICALLY OPERATED EQUIPMENT IN MOTOR VEHICLES - A device for delivering compressed air for pneumatically operated equipment in motor vehicles, in particular of brake systems in commercial vehicles, whereby compressed air can be tapped via a controllable valve from the combustion chamber of at least one cylinder of an internal combustion engine, includes a valve arranged outside the combustion chamber and connected to the combustion chamber, in particular via a connecting passage which opens into the combustion chamber. | 10-09-2014 |
| 20140360447 | GAS EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE - A gas exchange valve of an internal combustion engine may include a hollow valve stem and a valve disc. The valve disc may include a valve bottom and a hollow valve cone which is connected to an outer edge of said valve bottom. The hollow valve cone may taper with increasing distance from the valve bottom. The valve stem may pass through the hollow valve cone. The valve stem may be fixedly connected on the one hand to the valve bottom and on the other hand to the tapered end of the valve cone. The valve stem may include a first hollow space which is fluidically separated from a second hollow space arranged in the valve disc. The first hollow space and the second hollow space may have a different cooling agent filling level. | 12-11-2014 |
| 20150047584 | INTERNAL COMBUSTION ENGINE HAVING A PLURALITY OF EXHAUST PORTS PER CYLINDER AND CHARGE EXCHANGE METHOD FOR SUCH AN INTERNAL COMBUSTION ENGINE - A method for controlling valve actuation in an engine is provided. The method includes initiating combustion operation in a first cylinder, opening, via a first cam, a first exhaust valve coupled to the first cylinder for a first opening duration. The method further includes opening, via a second cam, a second exhaust valve coupled to the first cylinder for a second opening duration not equivalent to the first opening duration. | 02-19-2015 |
| 20150122206 | INTAKE CONTROL VALVE AND ASSEMBLY METHOD THEREOF - An intake control valve has a body, a valve, and a shaft. The valve has a connecting portion, a first boss located at an end of the connecting portion in the rotation axial direction; and a second boss located at an other end of the connecting portion in the rotation axial direction. The body has first and second bearing portions supporting the first and second protruding portions, respectively, first and second projection portions projecting inward from inner surfaces of the first and second bearings, respectively, to slidably support the first and second bosses, respectively, and first and second insertion openings defined between one circumferential end and an other circumferential end of the first and second projection portions, respectively. The first and second projection portions partially cover the first and second bosses, respectively, in a circumferential direction of the first boss and the second boss. | 05-07-2015 |
| 20150122207 | VARIABLE DISPLACEMENT SOLENOID CONTROL - Methods are provided for improved control of valve activation/deactivation mechanisms. One example method comprises, adjusting an electromechanical actuator to actuate cylinder valve deactivation/activation mechanisms. The actuator is operated at multiple levels based on engine operating conditions. | 05-07-2015 |
| 20150128887 | TECHNIQUES FOR DESIGNING CUSTOM CONTOURED ROCKER ARM PADS AND CUSTOM CONTOURED CAMSHAFT LOBES - A computer-implemented method can include receiving a contact point path between a rocker arm pad and a valve tip. The method can include adjusting the contact point path to obtain a modified contact point path that satisfies a design objective of decreased valve tip wear or decreased valve tick. The method can include determining and outputting a custom contour for the rocker arm pad and the camshaft lobe based on the modified contact point path. The custom contoured camshaft lobe can companion with the custom contoured rocker arm pad to produce the modified contact point path for the specified design objective. | 05-14-2015 |
| 20150377088 | CAMSHAFT BEARING STRUCTURE - A bearing structure for a camshaft includes a bearing part that includes a cylinder head, a cam cap, and a positioning member. The cam cap is assembled to an upper part of the cylinder head. The cylinder head and the cam cap define a journal hole. The cylinder head and the cam cap rotatably support the camshaft in the journal hole. The positioning member determines the position where the cylinder head and the cam cap are assembled to each other. The positioning member is press-fitted into the cylinder head and the cam cap. In the bearing part for the camshaft, the positioning member is provided only in an inner part, which is a part of the bearing part between an axis of the camshaft and a center of an upper part of the cylinder head. | 12-31-2015 |
| 20160108772 | METHOD AND SYSTEM FOR VARIABLE CAM TIMING DEVICE - Methods and systems are described for an engine with a cam torque actuated variable cam timing phaser. Phaser positioning control is improved by reducing inaccuracies resulting from inadvertent spool valve and/or phaser movement when the spool valve is commanded between regions. In addition, improved spool valve mapping is used to render phaser commands more consistent and robust. | 04-21-2016 |
| 20160108774 | METHOD AND SYSTEM FOR VARIABLE CAM TIMING DEVICE - Methods and systems are described for an engine with a cam torque actuated variable cam timing phaser. Phaser positioning control is improved by reducing inaccuracies resulting from inadvertent spool valve and/or phaser movement when the spool valve is commanded between regions. In addition, improved spool valve mapping is used to render phaser commands more consistent and robust. | 04-21-2016 |
| 20160169123 | HIGH PRESSURE FUEL SUPPLYING APPARATUS OF ENGINE | 06-16-2016 |
| 20160201524 | BRIDGE ASSEMBLY HAVING MOTION-LIMITED VALVE | 07-14-2016 |
| 20160376941 | METHOD OF CONTROLLING LOCK PIN OF CONTINUOUSLY VARIABLE VALVE TIMING SYSTEM - A method of controlling a lock pin of a CVVT (continuous variable valve timing) system is provided. The method includes: an oil supply operation of operating a spool of a valve bolt by means of oil drawn into the CVVT system and supplying the oil to the lock pin and a switching valve; a switching-valve opening operation of opening the switching valve by means of pressure of the oil supplied in the oil supply operation; and a lock-pin releasing operation of supplying oil to a chamber when the switching valve opens and releasing the lock pin when there is no difference in oil pressure between an advanced chamber and a retarded chamber. | 12-29-2016 |
