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7152561 Control structure for the adjusting motor of an electric camshaft adjuster  
A control structure for the adjusting motor of an electric camshaft adjuster in an internal combustion engine is provided. The control structure includes a controller which processes measuring...
7150272 Apparatus for an internal combustion engine  
Method and arrangement for delivering EGR gas to combustion spaces in a multi-cylinder, four-stroke internal combustion engine. Each cylinder, with an associated piston, has at least one inlet...
7150251 Valve timing control apparatus  
The invention intends to improve a response by utilizing a rotational variable torque of a cam shaft. Communication paths respectively communicating an advance hydraulic chamber and a retard...
7146949 Valve control apparatus  
A first camshaft ( 24 ) operates the exhaust valves ( 18 ) and a first intake valve ( 12 ) for each cylinder ( 8 ), and a second camshaft ( 38 ) operates the second intake valve per cylinder ( 14...
7146948 Valve lifting arrangement  
A valve actuating assembly for opening and closing a valve includes a cam mounted on a camshaft and enclosed by a pair of rotary cam guides each of which includes a roller channel having an outer...
7146946 Valve timing adjusting device  
A valve timing adjusting device includes a first rotor that rotates synchronously with a crankshaft of an engine; a second rotor that is relatively rotatable by a predetermined angle within the...
7146945 Apparatus for an internal combustion engine  
The invention relates to an apparatus for an internal combustion engine which for each cylinder with associated piston has at least one inlet valve and at least one exhaust valve for controlling...
7143730 Valve timing control system for internal combustion engine  
A valve timing system for an internal combustion engine includes a phase alteration mechanism interposed between a driving rotator and a driven rotator and having a direction turning point at which...
7143728 Control apparatus  
A control apparatus that is capable of maintaining both the control resolution and the control accuracy at respective high levels even when at least one of the nonlinearity and the frequency...
7140334 Valve train for internal combustion engine  
A valve train for an internal combustion engine including a plurality of cylinders having different valve mechanism constructions, in which the valve train has a correcting member for correcting a...
7140333 Apparatus for an internal combustion engine  
Method and apparatus for providing an internal combustion engine which for each cylinder, with the associated piston, has at least one inlet valve and at least one exhaust valve ( 10 ) for...
7137373 Valve lifter guide  
A valve lifter guide ( 100 ) includes a base ( 111 ) and at least one conduit ( 101 ) extending from the base ( 111 ). The conduit ( 101 ) has a first inwardly curved surface ( 103 ) opposed to a...
7137369 VCT closed-loop control using a two-position on/off solenoid  
In a VCT system having a feedback loop including a sensed signal and a set point, a method is provided, which includes the steps of: determining a switch variable which is related to the sensed...
7137368 Device for variable actuation of the gas exchange valves in internal combustion piston engines  
The invention relates to a revolving gear consisting of a housing (G), a shaft (W), an intermediate member (Z) and an output member (A). The shaft is revolvably guided in the housing in a rotating...
7136789 Method for producing a constraint-satisfied cam acceleration profile  
A method for generating an acceleration profile for a valve operating cam of an internal combustion engine varies an adjustment point of an initial draft acceleration profile curve such that a...
7124723 Valve mechanism for internal combustion engine  
The present valve mechanism for an internal combustion engine makes it possible to reliably perform switching between the low-velocity operation mode and the high-velocity operation mode without...
7124721 Control device for a gas exchange valve in an internal combustion engine  
A control device for a gas exchange valve of an internal combustion engine having a multi-membered transmission comprising at least one driving element ( 1 ), actuating elements ( 2 ) each...
7121241 Valve control system including deactivating rocker arm  
A valve control system ( 15 ) in which there is provided a deactivating rocker arm ( 51 ) disposed beneath a conventional, upper rocker arm ( 27 ), and disposed within a module housing ( 17 ). The...
7121239 Valve train for internal combustion engine  
A valve train including a cylinder having a cylinder axis and a cylinder head, the valve train has a first operating mechanism including a cam follower driven by a first valve train cam provided on...
7117833 Readily-fillable hydraulic valve lifter assembly  
A hydraulic valve lifter including venting means to assure venting of air through the lifter and filling thereof with oil during pre-start filling of the engine oil galleries after engine assembly....
7117831 Engine with variable lift valve mechanism  
An internal combustion engine is described having a valve mechanism which comprises a gas exchange poppet valve, a camshaft rotatable in synchronism with the engine crankshaft and having a cam for...
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...
7114230 Method and apparatus for automatically setting rocker arm clearances in an internal combustion engine  
A method for automatically setting valve clearances in internal combustion engines (also known as “tappet setting” or “valve lash setting”) comprises a series of steps in which a rocker arm...
7111600 Variable valve-stroke controls  
Mechanical controls for continuously varying the length of the stroke of the valves in an internal-combustion engine and for maintaining the valves constantly closed while the engine is in...
7111599 Valve-driving system of internal combustion engine and valve-driving apparatus  
A valve-driving system, which is applied to an internal combustion engine having a plurality of cylinders, for driving an intake or exhaust valve provided in each cylinder, comprising: a plurality...
7111598 Pivoting actuator system for controlling the stroke of a gas exchange valve in the cylinder head of an internal combustion engine  
Swivel actuator device for lift control of a gas exchange valve in a cylinder head of an internal combustion engine comprising a swivel motor having a shaft on which is provided a first operating...
7111597 Valve deactivator latching assembly  
A valve deactivator latching assembly for selective hydraulic pressure actuation of engine cylinder valves, where the valve actuator is received by and positionable within a bore formed in an...
7107952 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...
7107950 Variable valve actuating mechanism for internal combustion engine  
A lift and operating angle varying mechanism is arranged to vary an intake valve operation angle and an intake valve lift of the engine continuously by rotating a control shaft with an actuator...
7107949 Device for variable activation of valves for internal combustion engines  
A device for variable activation of valves for internal combustion engines, which is arranged in a cylinder head having a camshaft mounted in a fixed location with valves that close by means of...
7104231 Valve train of internal combustion engine  
The valve train V of an internal combustion engine E includes; a rocker arm 50, 60 for opening and closing the suction valve 13 ; a holding body 70 for holding the spring 77 to generate the...
7104230 Drive of variable valve lift mechanism  
A drive of a variable valve lift mechanism for driving a control shaft controlling a variable valve lift mechanism provided between an engine valve and an engine valve operating cam in order to...
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...
7104228 Engine with variable cam timing and control advantageously using humidity sensor  
A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired...
7100553 Actuator for valve lift control device having cam mechanism  
An actuator for a valve lift control device linearly moves a control shaft to change a valve lift in accordance with an axial position of the control shaft. A first and a second rotation cam...
7100552 Control system and method for variable valve actuation system  
A method of controlling a variable valve actuation system is provided. A cam assembly is operated to move an intake valve between a first position where the intake valve blocks a flow of fluid and...
7096837 Valve train of an internal combustion engine  
The invention proposes a valve train of an internal combustion engine comprising a cam ( 1 ) and a directly driven cam follower ( 2 ), such as a roller tappet. This valve train is additionally...
7096836 Adjustable rocker arm assembly for easing valve lash adjustment  
A tubular mount system for a rocker arm which includes a rigid clamp at the base of the engine head is disclosed. Included is a pedestal mount/adjuster with external threads engageable with...
7096835 Valve train device for an engine  
A valve train device is provided for swinging a rocker arm, which is pivotally disposed on a rocker arm support shaft. The device comprises a drive device for driving the rocker arm, an...
7093575 Pin housing sub-assembly for an hydraulic valve lifter  
An improved pin housing sub-assembly configured for reliable assembly and stability as an intermediate sub-assembly. The length of the plunger return spring is greater than the diameter of the...
7093572 Roller finger follower assembly for valve deactivation  
A roller finger follower rocker arm assembly for deactivating an engine valve. A follower body pivots on a hydraulic lash adjuster, and engages a valve stem or lifter. The body receives a...
7089898 Valve timing control device of internal combustion engine  
In a valve timing control device, a control means is configured to carry out feeding one of retarding and advancing chambers with a hydraulic pressure upon starting of the engine; actuating one of...
7086381 Apparatus and method for controlling an internal combustion engine  
A plurality of intake air amount control systems are provided for diagnosing a failure of each intake air amount control system. At the failure of any of them, a fail-safe control is performed...
7086361 Durable valve lifter for combustion engines and methods of making same  
A valve system lifter for combustion engines includes a hard metal face pad connected to a lower-grade metal lifter body. The connecting material is one or more materials that are different from...
7086360 Assembly and torsional stop device for roller tappets of a drive in an internal combustion engine  
The invention concerns a mounting and anti-rotation device (mounting aid) ( 1 ) for roller tappets of a valve train of an internal combustion engine in which gas exchange valves are activated by...
7086359 Rotational phase adjuster  
In a rotational phase adjusting apparatus for adjusting a difference in rotational phase between a first element and a second element by controlling an engagement therebetween through a third...
7082913 Valve characteristic changing apparatus for internal combustion engine  
A value characteristic changing apparatus for an internal combustion engine according to the invention is provided with an intake-side variable valve timing mechanism that changes a valve timing of...
7082912 System and method for controlling engine valve lift and valve opening percentage  
System and method for controlling internal combustion engine valve lift and valve opening by an arrangement of cams with overlapping cams track that synchronize and vary the rise, fall, and dwell...
7080616 Cylinder head assembly for an internal combustion engine with a camshaft position sensor  
A cylinder head assembly for an internal combustion engine houses a camshaft position sensor for determining an angular position of a camshaft. A cylinder head upper is disposed between a cylinder...
7080615 System and method for actuating an engine valve  
An engine valve actuation system is provided that includes an engine valve that is movable between a first position where the engine valve prevents a flow of fluid and a second position where the...