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| Number | Title | Issue Date |
| 8186320 | Device for camshaft adjustment in an internal combustion engine The invention relates to a device for camshaft adjustment in an internal combustion engine, having a lifting profile element which is provided in a rotationally fixed manner on an axially movable mounted camshaft and which provides a control groove, and having a con... | 05/29/2012 |
| 7753019 | Phase adjusting device The invention relates to a transmission assembly (34), for imparting a phase difference between an outer wheel and an inner wheel of a spline VVT. The assembly comprises a tubular meshing member (36) having an inner surface (38) and an outer sur... | 07/13/2010 |
| 7475662 | Actuator for valve lift controller A feed screw mechanism including a screwed shaft which moves linearly along with the control shaft, and a rotation spindle which rotates in a circumferential direction. The feed screw mechanism converts a rotational movement of the rotation spindle into a linear mov... | 01/13/2009 |
| 7409938 | Valve drive of an internal combustion engine comprising a cylinder head The invention relates to a valve drive of an internal combustion engine, comprising at least one camshaft whereon at least one cam carrier is arranged in a rotationally fixed and axially displaceable manner. Means for applying axial tension are formed between the at... | 08/12/2008 |
| 7404383 | Valve train with cam switching for the gas exchange valves of a four-cycle internal combustion engine A valve train with cam switching used for intermittent control of a four-cycle internal combustion engine. The valve train comprises a splined shaft, one cam block per cylinder, and a housing-mounted actuator pin. On each end of the cam block is a cylindrical end pi... | 07/29/2008 |
| 7392775 | Helical cam device and method A helical cam device for use with a wide variety of applications generally includes a first cam component, a second cam component and an axial guide. The cam components each have a helical cam track located on an axial end, so that coaxial alignment of the two cam c... | 07/01/2008 |
| 7360751 | Magnet unit A magnet unit is provided with a solenoid with a coil whose core is attached in a recess on the front side of a base, with a movable anchor activated by a recoil spring with a valve closing element and with a protective cap attached on a shoulder of the base within ... | 04/22/2008 |
| 7347171 | Engine valve actuator providing Miller cycle benefits An engine valve actuator providing Miller cycle benefits and a method of operating an engine valve actuator are disclosed. The valve actuator employs a first force to hold an exhaust valve of the engine open during an exhaust stroke and a second, stronger force to h... | 03/25/2008 |
| 7341032 | Dynamic camshaft apparatus A dynamic camshaft apparatus includes, according to one embodiment, a moveable camshaft connected to an engine. The moveable camshaft has a first position when the engine is started and at low RPMs. Further, the moveable camshaft is conformed to move to different po... | 03/11/2008 |
| 7325305 | Method for producing a built shaft A method of producing a built shaft in which at least one part, particularly a cam, is mounted on the shaft, particularly a camshaft, includes inserting the shaft into an opening of the part. Before mounting the part, the shaft is stretched by a stretching and tight... | 02/05/2008 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7246579 | Actuator for valve lift controller An actuator for a valve lift controller comprises a case forming a first and second spaces therein. The first space is supplied with lubricating fluid. The actuator further comprises a feed screw mechanism including a cylindrical spindle and a screw, and converts a ... | 07/24/2007 |
| 7237516 | Method for controlling an actuator, using a retaining mark space ratio The invention relates to a method for controlling an actuator which can be displaced between two end positions, said actuator being impinged in one end position and being capable of displacement to the other end position by an electromagnetic part. The actuator is f... | 07/03/2007 |
| 7234425 | Actuator for valve lift controller An actuator for a valve lift controller linearly driving a control shaft of a changing mechanism comprises a feed screw mechanism including a screwed shaft linearly moving along with the control shaft, and a rotation spindle rotating coaxially with the screwed shaft... | 06/26/2007 |
| 7228832 | Internal combustion engine with translatable camshaft An internal combustion engine having a camshaft which is translatable between first and second positions to control an engine operating characteristic. The camshaft is rotationally driven from the engine crankshaft, and includes an oil pump member in fluid communica... | 06/12/2007 |
| 7201124 | Phase displacement device A phase displacement device (1) having a drive (2) with a drive shaft (4) and a transmission (5) for displacing the phase between a camshaft (9) and a crankshaft (12) is provided. The phase displacement device (1) has... | 04/10/2007 |
| 7198015 | Variable valve timing system A variable valve timing system in which the cam shaft is rotated with respect to the crankshaft position by moving a shaft disposed interior to the cam shaft longitudinally has been developed. The variable valve timing system provides for varying the timing of the o... | 04/03/2007 |
| 7184880 | Method and device for determining the phase position of a camshaft of an internal combustion engine The invention relates to an internal combustion engine comprising a crankshaft, a camshaft and an adjusting device, which is used to adjust the phase position of the camshaft in relation to the crankshaft. The phase position is determined in accordance with a detect... | 02/27/2007 |
| 7167071 | Inductive device and method for producing the same A core material-including organic core board or inorganic sintered board 1 having a plurality of band-shaped conductor patterns 2 formed on its front and rear surfaces is sliced in a direction crossing the band-shaped conductor patterns 2. End p... | 01/23/2007 |
| 7128033 | Valve driving apparatus and internal combustion engine including the same A cam 13 formed so that cam height and a cam operation angle continuously change, and constituted to be rotated integrally with a camshaft 11 and relatively movable in an axial direction thereof, a valve lifter 20 pressed by a cam surface of the... | 10/31/2006 |
| 7121240 | Valve controller The valve controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit drives a motor based on a control signal generated by the control circuit and a rotational position signal generated by a rotational posi... | 10/17/2006 |
| 7114473 | Valve driving apparatus and internal combustion engine including the same A three-dimensional cam of a three-dimensional map state, having uncountable cam profiles continuously ranged along a rotation axis direction, and a valve lifter following a cam surface of the three-dimensional cam are included, and a lift characteristic of a valve ... | 10/03/2006 |
| 7104229 | Variable valve timing system A variable valve timing system for an internal combustion engine, comprising a drive shaft driven by the engine, a camshaft driven by the drive shaft, and a cam supported by the camshaft for bearing against a valve actuating member. The camshaft and the drive shaft ... | 09/12/2006 |
| 7036483 | Diesel engine with dual-lobed intake cam for compression ratio control Dual-lobed cams mounted on the intake camshaft of a diesel engine selectively retard timing of the intake valve closure. The purpose of retarding timing of the intake valves is to retard valve closing sufficiently to shorten the effective compression strokes of the ... | 05/02/2006 |
| 7017541 | Driving apparatus and valve lift adjusting apparatus using the same A driving cam includes a circular surface portion at an outer cam surface thereof. When an engine is turned off, the circular surface portion is brought into contact with a roller. Thereby, even if a load is applied to the control axis member, no rotational force is... | 03/28/2006 |
| 7004127 | Actuator having drive cam and valve lift controller using the actuator An actuator is used for controlling an intake valve lift of an automotive engine. A control shaft is joined with a transmission device on its one end side, and is joined with a valve lift controller on the other end side. The control shaft is arranged perpendicularl... | 02/28/2006 |
| 7004124 | Valve strategy for operating a controlled auto-ignition four-stroke internal combustion engine Low load operating point for a controlled auto-ignition four-stroke internal combustion engine is reduced without compromising combustion stability through a valve control operative to establish sub-atmospheric pressure conditions within the combustion chamber into ... | 02/28/2006 |
| 7004126 | Camshaft structure A structure for a camshaft includes a cam angle detecting element arranged to face a cam angle sensor and supported in a cantilever manner by a cam journal on the outer side of the cam journal. An extension journal between the cam journal and the cam angle detecting... | 02/28/2006 |
| 6999864 | Apparatus and method for estimating residual gas amount of internal combustion engine, and apparatus and method for controlling intake air amount of internal combustion engine using estimated residual gas amount In an internal combustion engine provided with a variable valve mechanism that variably controls at least an operating characteristic (valve lift amount and the like) of an intake valve, a valve opening area AWm at a valve overlap time is calculated based on a valve... | 02/14/2006 |
| 6971351 | Valve timing adjusting device A region including an engaging hole is given surface treatment such as partial quench hardening by induction hardening for improving surface hardness of the region. The partial quench hardening by induction hardening provides the region with satisfactory mechanical ... | 12/06/2005 |
| 6968815 | Actuating device for securing a camshaft of an engine of a motor vehicle in a start position An actuating device for hydraulically securing a camshaft of an engine of a motor vehicle in a start position has a solenoid valve controlling the flow of a pressure medium to a camshaft adjuster with a rotary slide valve that is fixedly connected to the camshaft an... | 11/29/2005 |
| 6968814 | Device for converting a rotational movement into a reciprocating movement The invention relates to a device for converting a rotational displacement into a displacement back and forth. Said device comprises at least one control cam region, provided with a driven cam element, having an eccentric control surface, and a cam follower element ... | 11/29/2005 |
| 6951195 | Variable valve mechanism and intake air amount control apparatus of internal combustion engine A variable valve mechanism of an internal combustion engine capable of changing at least one of two valve physical quantities, i.e., valve operation angle and valve lift, has a valve lift adjustment mechanism that adjusts the at least one valve physical quantity wit... | 10/04/2005 |
| 6941911 | Adjustable valve control device for an internal combustion engine An adjustable valve control device for an internal combustion engine with a drive shaft, with a camshaft 1 rotated by the drive shaft, and with at least one valve actuated by the camshaft 1 with a specific timing. The valve control device modifies the ... | 09/13/2005 |
| 6935290 | Avoid drawing air into VCT chamber by exhausting oil into an oil ring A VCT phaser for an internal combustion engine with at least one camshaft comprising a housing, a rotor, a spool valve and a ring-shaped reservoir. The housing having at least one chamber and the rotor having at least one vane dividing the chambers into advance and ... | 08/30/2005 |
| 6935289 | Valve drive system for four-stroke engine A valve drive system capable of reducing the friction resistance of rocker arms and facilitating replacement work of tappet-clearance adjusting shims. The valve drive system can comprise a rocker arm that is slidable between a first position at which the pushing por... | 08/30/2005 |
| 6928971 | Camshaft adjusting device for internal combustion engines of motor vehicles A camshaft adjusting device for internal combustion engines of motor vehicles has an intake camshaft adjuster and an exhaust camshaft adjuster driven by an endless drive connected to the crankshaft. The intake and exhaust camshaft adjusters are connected by a gear t... | 08/16/2005 |
| 6920853 | Variable valve timing control device A variable valve timing control device includes a rotation member for opening or closing a valve, a rotation transmission member engaged with the rotation member to be relatively rotatable, a vane provided on either one of the rotation member or the rotation transmi... | 07/26/2005 |
| 6912981 | Method and apparatus to correct a cam phaser fault A method of correcting a cam phaser system failure including detecting a cam phaser system fault and generating a control signal to correct said cam phaser system fault. ... | 07/05/2005 |
| 6904880 | VCT sensor and actuator module A lead frame disposed within the confines of an engine cover, having an insulating portion and an electrically conducting portion. The conducting portion has at least one electrically conducting interconnect. Both the insulating portion and the electrically conducti... | 06/14/2005 |
