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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...
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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...
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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...
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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...
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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...
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7080614 |
Hydraulically actuated, variable valve drive of an internal combustion engine
A hydraulically actuated, preferably variable, valve drive of an internal-combustion engine is provided, with a slave unit ( 15 ), which is embodied as a separate component relative to a master...
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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...
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7077082 |
System and method for monitoring engine valve actuation
An engine valve actuation system is provided. An intake valve is moveable between a first position where the intake valve prevents a flow of fluid relative to the intake valve and a second position...
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7077085 |
Variable valve control system and method for multi-cylinder internal combustion engine
In variable valve control system and method for a vehicular multi-cylinder internal combustion engine, a first learning timing at which a reference position of a lift characteristic is learned for...
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7073470 |
Variable valve apparatus of internal combustion engine
A variable valve apparatus comprises a rocker shaft having an eccentric shaft rendered eccentric, a cam provided below the rocker shaft and rotationally driven, a support shaft disposed at a height...
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7073469 |
Intake system for an internal combustion engine
An intake system for an internal combustion engine is provided which comprises a variable valve control apparatus capable of variably and continuously controlling the amount of intake air of an...
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7069889 |
Camshaft, especially for an internal combustion engine of a motor vehicle, comprising shiftable cams
Disclosed is a camshaft, especially for an internal combustion engine of a motor vehicle, comprising at least one cam that is provided with cam segments ( 2, 3 ), which can be displaced relative to...
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7066145 |
Intake air amount control apparatus and intake air amount control method for internal combustion engines
If a valve timing adjusting mechanism has a problem, an ECU determines whether or not actual valve timing VTa is larger than valve timing advanced angle limit value VTegr. Depending on the...
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7063057 |
Method for effectively diagnosing the operational state of a variable valve lift device
A method for diagnosing the operational state of a variable valve lift device (VVL) is provided. The method includes providing a first signal indicative of an estimated position of the VVL, the...
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7063056 |
Valve timing control apparatus for engine
There is provided a valve timing control apparatus for an engine, which comprises a variable valve mechanism capable of varying at least one of an opening timing of intake valves and a closing...
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7055475 |
Rotary actuator device to control the stroke of a charge exchange poppet valve in the cylinder head of an internal combustion engine
For a rotary actor device for stroke control of a charge changing valve in the cylinder head of an internal combustion engine with rocking stepper motor for driving a control disk with a cam...
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7055472 |
System and method for actuating an engine valve
An engine valve actuator is provided. The actuator includes an actuator housing that defines a tank adapted to store a supply of fluid and a bore in fluid communication with the tank. A piston is...
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7055476 |
Valve actuation apparatus for internal combustion engine
A VA apparatus for an internal combustion engine includes a pair of VO cams disposed on both sides of a crank cam and having inside end faces opposed to each other, wherein the inside end faces...
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7055480 |
Valve gear of internal combustion engine
There is provided a valve gear of an internal combustion engine, comprising a cam mechanism for converting rotational motion of an electric motor into linear motion to drive a valve for opening and...
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7055478 |
Intermediate lever for a variable valve train of an internal combustion engine
The invention proposes an intermediate lever ( 1 ) for a variable valve train of an internal combustion engine, said intermediate lever ( 1 ) comprising a loading end ( 2 ) and a pivoting end ( 3...
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7055473 |
Control system for outboard motor
An internal combustion engine comprising an engine body. A combustion chamber is formed in the engine body and has at least one valve seat. A valve is configured to move between an open position...
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7055477 |
Valve actuation apparatus for internal combustion engine and method of adjusting lift thereof
A VA apparatus includes a rocker arm coaxially swingably supported on a support shaft. The rocker arm is swung by torque transmitted from an engine to operate an engine valve and includes a first...
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7051691 |
Desmodromic valve drive
The invention relates to a valve drive, in particular for internal combustion engines of motor vehicles, comprising at least one cam element ( 2 ) that is located on a driven shaft ( 1 ) and at...
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7051689 |
Failure diagnostic system for exhaust pressure increasing device
There is provided a failure diagnostic system which includes an intake channel and an exhaust channel in communication with cylinders of an internal combustion engine; the exhaust pressure...
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7047922 |
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...
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7047924 |
Method for diagnosing the operational state of a two-step variable valve lift device
A method for diagnosing an operational state of a variable valve lift (VVL) device in an engine, wherein the VVL device is capable of operating in two modes of operation. The method includes...
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7047921 |
Variable-valve-actuation apparatus for internal combustion engine
A VVA apparatus includes a control shaft arranged rotatable in accordance with the engine operating conditions, an alteration mechanism for changing a lift amount and an operating angle of an...
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7047923 |
Device for varying valve timing in an internal combustion engine
A device for varying valve timing in an internal combustion engine comprises an adjusting mechanism for varying an angle of rotation between a drive pinion ( 2 ) and a camshaft (end portion of the...
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7040265 |
Multiple displacement system for an engine
A cylinder deactivation arrangement for an engine is provided. The arrangement includes an engine with main oiling circuit passages and lifter oil gallery control circuit passages formed internal...
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7040267 |
Fully variable mechanical valve gear for a piston-type internal combustion engine
The invention relates to a variably adjustable mechanical valve gear for at least one gas-reversing valve ( 1 ) provided with a closing spring ( 2 ) on a piston-type internal combustion engine...
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7040264 |
Timing advancement for exhaust valve in internal combustion engine
An internal combustion engine having a timing device for advancing operation of an exhaust valve, and a method of operating the exhaust valve, wherein, for the case of a conventional automotive...
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7036481 |
Switching element for a valve drive of an internal combustion engine
A switching element ( 1 ) for a valve drive of an internal combustion engine is provided, preferably for deactivating a valve. The switching element has an outer section ( 2 ), in addition to an...
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7032550 |
Inter-cylinder variation detection device and inter-bank variation detection device of internal combustion engine
An inter-bank variation detection device of an internal combustion engine provided with a valve opening characteristic setting means ( 57 ) for changing the valve opening characteristic of an...
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7032564 |
Electro-hydraulic valve deactivation in an engine, manifold assembly therefor and method of making same
An electro-hydraulic manifold assembly for deactivation of the valves of one bank of cylinders in a V-10 engine. One solenoid valve controls flow of oil to the hydraulic valve lifter/lash adjuster...
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7032551 |
Adjusting mechanism adjusting method of valve-lift amount of internal combustion engine
A rocker arm 13 is rocked with respect to a control shaft 32 through a link arm 14 by rotation of a drive shaft 3 . With this configuration, a rocking cam 7 is rocked with respect to the...
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7025023 |
Hydraulic camshaft adjuster for an internal combustion engine
In a hydraulic camshaft adjuster for an internal combustion engine including a hydraulic operating unit for adjusting the angular position of the camshaft relative to a camshaft drive by way of a...
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7021258 |
Learning apparatus and method for variable valve control of internal combustion engine
A learning apparatus for a variable valve control of an internal combustion engine includes a variable valve operating mechanism, an actuator that rotationally drives the control shaft, a control...
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7021259 |
Variable valve control apparatus and method in internal combustion engine
In an internal combustion engine, which is provided with a variable valve mechanism that varies an open/close characteristic of an intake valve, a target open/close characteristic of the intake...
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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...
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7013855 |
Lash adjuster for valve actuator
A lash adjuster in a valve actuator includes a lifter body having an end plate having its top surface in contact with a cam and formed with a threaded hole in its bottom surface. An adjuster screw...
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7011054 |
Apparatus for controlling valve actuation in internal combustion engine
Either associated process control or discrete process control is selected for valve timing control according to the engine operation state. Under the associated process control, the target...
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7011057 |
Variable valve operating control apparatus for internal combustion engine and control method thereof
A centric phase of an operating angle of an engine valve is detected on the basis of an interval between a reference rotational position of a crankshaft and a reference rotational position of a...
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7011056 |
Variable timing device for reciprocating engines, engines comprising same and distribution and turbocharging method
The invention concerns a variable timing device for reciprocating engines with, at least two cam shafts (AC 1 , AC 2 ) comprising, at least an intake valve (A) and at least an exhaust valve (E)...
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7007651 |
Anti-rotation guide for a deactivation hydraulic valve lifter
An anti-rotation guide for a deactivation hydraulic valve lifter for an internal combustion engine. The guide includes a through bore accommodating of a hydraulic valve lifter and is sized such...
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7007646 |
Valve gear with cylinder suspending mechanism of an internal combustion engine
A valve gear with a cylinder suspending mechanism of an internal combustion engine, whose entire valve gear mechanism is downsized by efficiently arranging the configuration of the valve gear...
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7007647 |
Rotary actuator device for controlling the stroke of gas charge exchange valves in the cylinder head of an internal combustion engine
A rotary actuator device is used to control the stroke of at least two gas exchange valves in a cylinder head of an internal combustion engine. The device includes first and second actuating...
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7007645 |
Method and apparatus for controlling CVVT of an engine
Controlling of a CVVT can be improved by controlling the CVVT based on an estimated oil temperature, the estimated oil temperature being calculated on the basis of a coolant temperature at starting...
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7007649 |
Engine valve actuator assembly
A valve actuator assembly for an engine includes a movable engine valve. The valve actuator assembly also includes a movable roller finger follower operatively engaged with the engine valve, a...
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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...
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7004128 |
Control apparatus for device having dead band, and variable valve system
A control unit employed in a variable valve timing apparatus vibrates a control signal for controlling an oil-pressure control valve. If the vibration center of the duty value of the control signal...
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