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7444970 |
Valve timing controlling apparatus
In a valve timing controlling apparatus having: a first rotary body rotatable with a cam shaft of an internal combustion engine; a second rotary body rotatable with a crank shaft and rotatable...
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7444967 |
Variable valve device for internal combustion engine
A variable valve device includes a camshaft which is rotatably provided in an internal combustion engine while having a cam, a rocker shaft which is arranged next to the camshaft, a valve which is...
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7444969 |
Variable valve timing apparatus
In the case where an intake valve has its phase in a first region between a most retarded angle and CA( 1 ), the rotational speed of relative rotation between an output shaft of an electric motor...
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7441524 |
Valve timing control apparatus for internal combustion engine and control method thereof
In a structure with a variable valve timing mechanism which varies an opening-and-closing timing of an intake valve and/or an exhaust valve due to a rotational phase of a camshaft with respect to a...
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7441522 |
Valve characteristic control device for internal combustion engine and method of the same
A lift time area is calculated based on an actual valve working angle of an intake valve and an engine rotational speed. Then, a control gain of a feedback control is set based on the lift time area.
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7441520 |
Valve-timing control apparatus of internal combustion engine
A valve-timing control apparatus of an internal combustion engine provides a valve timing controller capable of continuously and variably controlling the overlap period of an intake valve and an...
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7438034 |
Camshaft-adjusting device
In a camshaft adjusting device comprising an adjusting mechanism for adjusting the phase positions of first and second camshafts with respect to a crankshaft driving the camshaft adjusting device,...
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7438032 |
Method and device for controlling an internal combustion engine
The invention relates to an internal combustion engine comprising an inlet tract, leading to the inlet to a cylinder where a gas inlet valve is arranged. A valve drive for the gas inlet valve is...
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7438033 |
Variable valve timing control apparatus for internal combustion engine and internal combustion engine including variable valve timing control apparatus
As for a reference valve timing varying rate A obtained by a deviation Δφ between a target VVT phase φT and an actual VVT phase φ, when a varying rate Δθth of an accelerator opening degree...
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7438035 |
Cam drive apparatus having a magnetic gear
A cam drive apparatus comprising a magnetic gear adapted to communicate rotational movement between a crankshaft and a cam shaft, wherein said magnetic gear comprises an outer member comprising a...
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7434554 |
Controller for vane-type variable valve timing adjusting mechanism
In a vane-type variable valve timing adjusting mechanism (VCT), an OCV target current is set to the holding current to hold an actual advance amount in close proximity to the target advance amount...
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7434555 |
V type internal combustion engine
A number of embodiments of double overhead cam shaft V type engines wherein the drive arrangement for the camshafts permits not only a compact design but also one in which the timing loadings are...
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7430998 |
Method for positional determination of an EC motor
A method for positional determination for an EC motor ( 14 ) on a device for the adjustment of the rotational angular position of the camshaft ( 11 ) of a reciprocating piston combustion engine...
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7431002 |
Camshaft with contrarotating cams for automotive engines in particular
A camshaft has contrarotating cams for automotive engines, in which an inside shaft and an outside shaft are arranged concentrically so they are contrarotating, at least one cam has at least one...
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7426912 |
Oil supply circuit for cylinder deactivation system
An oil supply circuit for a cylinder deactivation system having a simple structure and capable of being installed at a cylinder head without needing additional extraneous elements by forming an oil...
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7424873 |
Variable valve mechanism
Disclosed is a variable valve mechanism 10 for changing the lift amount and operating angle of an internal combustion engine valve disc 12 . The variable valve mechanism comprises a first cam ...
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7424877 |
Internal combustion engine
The invention relates to an internal combustion engine comprising a variable valve drive device provided with at least one camshaft having at least one cam arrangement. Said cam arrangement...
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7424875 |
Phase controller and cam shaft phase controller for internal combustion engine
A parallel guide portion as an integral structure of a sprocket and a vane, as well as a slant guide portion, are arranged alternately on the same circumference, with circumferential gaps being...
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7421992 |
Camshaft
A camshaft for activation of the gas exchange valves of an internal combustion engine has two coaxially mounted shafts rotatable inside and with respect to one another, first cams fixedly attached...
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7421989 |
Vane-type cam phaser having increased rotational authority, intermediate position locking, and dedicated oil supply
A vane-type camshaft phaser having a rotational authority between 40 crank degrees before TDC and 30 crank degrees after TDC. The phaser includes a stator seat formed at a rotation position...
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7418933 |
Variable lift valve operating system for internal combustion engine
A variable lift valve operating system for an internal combustion engine, including a variable lift mechanism capable of changing a lift amount of an engine valve in accordance with rotation of a...
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7415952 |
Valve timing control device
A valve timing control device includes a rotational shaft, a rotational torque transmitting member attached to the rotational shaft, a plurality of vanes each attached to the rotational shaft or...
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7412950 |
Valve operation device of internal combustion engine
A variable valve characteristic mechanism has a valve operation cam pivotally supported on a camshaft and a driving mechanism rocking an interlocking mechanism around the camshaft, the interlocking...
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7409936 |
Cam angle detecting apparatus, and cam phase detecting apparatus for internal combustion engine and cam phase detecting method thereof
An in-line four-cylinder engine provided with a variable valve timing mechanism which changes a rotation phase of a camshaft relative to a crankshaft, and a cam angle sensor which outputs a cam...
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7409935 |
Method and apparatus for setting bias spring load during assembly of a camshaft phaser
A camshaft phaser includes a rotor, a stator, a torsional rotor bias spring, and a spring retainer wherein the spring retainer is fixed to either the rotor or stator when the nominal spring preload...
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7406933 |
Variable valve timing apparatus with reduced power consumption and control method thereof
A convergence determination of intake valve phase control is made by comparing a phase deviation of an intake valve from a target phase with a convergence determination value. At the time of...
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7406935 |
Variable valve timing control apparatus of internal combustion engine
A variable valve timing control apparatus employs a five-blade vane member fixedly connected to a camshaft end and rotatably disposed in a phase-converter housing formed integral with a sprocket...
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7406934 |
Valve timing controller with separating member
A valve timing controller includes a first rotating element and a second rotating element. The controller further includes a link mechanism part including arm members for coupling the first and...
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7401583 |
Adjustable valve timing system
An adjustment device for changing the relative rotation between a cam and a crankshaft is provided. The adjustment device includes a driven device operatively connected to the crankshaft. The...
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7401581 |
Variable valve apparatus for internal combustion engine
A variable valve apparatus for an internal combustion engine including a cylinder set comprising a plurality of cylinders. The variable valve apparatus includes: a control shaft adapted for...
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7398750 |
Valve mechanism for internal combustion engine
A valve drive mechanism is provided for opening and closing a valve of an engine. The device comprises a valve drive device and a swing member pivotally supported on a swing member support shaft....
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7392774 |
Method for controlling valve overlap of a variable valvetrain engine
A method for controlling valve timing for and engine having adjustable valve timing is presented. In one embodiment, the method allows the intake valve timing to be controlled with respect to...
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7389756 |
Control valve for an apparatus for variable setting of the control times of gas exchange valves of an internal combustion engine
The invention relates to a control valve ( 20 ) for an apparatus ( 1 ) for the variable setting of the control times of gas exchange valves ( 110, 111 ) of an internal combustion engine ( 100 ),...
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7383802 |
Valve timing adjusting apparatus
In a valve timing adjusting apparatus, an outer peripheral surface of each projection of an internal gear, which is received in a corresponding engaging hole of a guide rotator, may have reduced...
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7383799 |
Method for monitoring the operating condition of an engine valve system
A system is provided for monitoring changes in the operation of a valve system of an engine. An accelerometer provides vibration-related signals that are obtained by a microprocessor or similarly...
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7380530 |
Camshaft adjuster with a superposition drive
A drive connection with a camshaft adjuster for an internal combustion engine is provided. A free end of the camshaft adjuster is coupled with an accessory unit, especially a vacuum pump, in a...
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7380529 |
Method for adjusting an angle of rotation, and phase displacement device for carrying out said method
A method for adjustment of the relative angle of rotation between a camshaft and a crankshaft in an internal combustion engine through an electromechanical phase adjuster is provided. The invention...
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7377243 |
Adjusting mechanism for a camshaft arrangement
In an adjusting mechanism which is connected to first and second camshafts of a camshaft drive arrangement including a control device for adjusting the phase position of at least one of the...
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7377245 |
Valve timing controller
A valve timing controller includes an electric motor generating a cogging torque on the motor shaft, an current control means for controlling an electricity supplied to the electric motor, and a...
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7377242 |
Valve timing adjusting apparatus
A driving-side rotatable body includes a driving-side inner gear, which has an axial extent that does not overlap with an axial extent of a driven-side inner gear of a driven-side rotatable body. A...
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7377244 |
Camshaft adjuster for an internal combustion engine and a method for operating a camshaft adjuster
In a camshaft adjuster for an internal combustion engine including a gear mechanism, an input drive element, a camshaft as an output element, and a brake mechanism for braking an adjustment input...
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7370617 |
Variable valve operating mechanism of four-stroke internal combustion engine
A variable valve operating mechanism of a four-stroke internal combustion engine includes a slide pin energized by a pin spring in a direction while oil pressure acting on the slide pin in the...
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7367298 |
Variable valve gear for internal combustion engine
A variable valve gear for internal combustion engines, having at least one camshaft and pivot lever disposed in the cylinder head, which lever contacts a valve that closes by means of spring force....
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7367300 |
Electric valve drive with a rotating actuator
Valve drive for an internal combustion engine having a valve which is axially displaceable between an open position and a closed position and is prestressed by a locking spring in the direction of...
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7363896 |
Variable valve timing control device of internal combustion engine
A required valve timing change rate Vreq is calculated so as to make a deviation D between a target valve timing VTtg and an actual valve timing VT small and then a required speed difference...
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7363897 |
Vane-type cam phaser having bias spring system to assist intermediate position pin locking
A vane-type camshaft phaser for varying the timing of combustion valves in an internal combustion engine. The phaser includes a seat formed in the sprocket at the appropriate position of...
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7360516 |
Variable valve timing apparatus executing reference position learning and control method thereof
A current value of an intake valve phase calculated based on a sensor output is smoothed along the direction of time axis in accordance with a smoothing factor, whereby a phase detection value is...
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7353789 |
Angular camshaft position adjustment drive
In an adjusting mechanism having an adjusting device for adjusting a phase position of a camshaft in relation to a crankshaft of an internal combustion engine, and a drive gear driven by the...
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7343887 |
Apparatus for abnormal diagnosis of variable valve timing mechanism
An abnormality diagnosis system 100 includes a VVT controller 110 , an adjustable valve mechanism 120 , a cam angle sensor 130 , a model computation module 140 , an abnormality detection...
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7341031 |
Valve timing controller
A valve timing controller includes a housing which is biasedly assembled in such a manner that the housing is previously moved in a direction where a rotor knocks the housing. A camshaft rotatably...
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