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7954355 |
Device for automatically adjusting control cams in a forging machine
In a device for automatically adjusting the control cams of a forging machine, with a releasing means for releasing the operating position of a cam, the cam supporting shaft swingably supports,...
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7849829 |
Concentric camshaft with independent bearing surface for floating lobes
A camshaft may include a first shaft, a first lobe member fixed to the first shaft, a second lobe member fixed to the first shaft, and a third lobe member. The first lobe member may include a first...
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7811059 |
Variable angle oscillating fan
An adjusting mechanism for desired angle of an oscillating electric fan is disclosed. The adjusting knob is conveniently located about the top rear portion of the fan motor, adjacent the clutch...
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7574944 |
High-durability cam wheel assembly
Disclosed is a high-durability cam wheel assembly, which includes a fixed member, which has a center axle hole and one pair of first interference members symmetrically disposed at one side thereof,...
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7284521 |
Shaft mechanism, in particular camshaft of automotive engines
A camshaft of an automotive engine includes two concentric contra-rotating shafts mounted one inside the other, namely an inside shaft and an outside shaft, at least one cam rotatably mounted on...
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7278384 |
Timing mechanism for a switchable two-step roller finger follower
A two-step roller finger follower having a movable high-lift portion and a low-lift portion. A lock pin mechanism in the low-lift portion includes a lock pin that may be driven hydraulically into...
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7255076 |
Variable valve lift apparatus for vehicle engines
The present invention provides a variable valve lift apparatus for vehicle engines. A low-speed arm is installed in a high-speed arm to overlap the high-speed arm. A compression pin, a center pin,...
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7214153 |
Method of changing the duty cycle frequency of a PWM solenoid on a CAM phaser to increase compliance in a timing drive
A chain drive having a phaser such as a hydraulic vane phaser interposed between a timing chain and a driving or driven shaft is provided. The phaser or the vane are controlled to oscillate more at...
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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...
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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...
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7121160 |
Mechanical transmission
A constant power mechanical transmission with seamless, ripple free, infinitely variable torque multiplying outputs comprises an input shaft and an output shaft. The input shaft is coupled to a...
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7117832 |
Device for adjusting a camshaft of an internal combustion engine of a motor vehicle
A device for adjusting a camshaft of an internal combustion engine of a motor vehicle has a stator and a rotor fixedly connected to a camshaft and rotatable relative to the stator. A drive wheel is...
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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...
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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...
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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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7033149 |
Medium pump adapted for ease of disassembly and assembly
A medium pump for a motor includes a pump case with a pump cylinder and a pump piston positioned displacaebly in the pump cylinder in the direction of a pump axle. The pump piston rotates about 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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7021257 |
Compensating for VCT phase error over speed range
A method for compensating for variable cam timing of an internal combustion engine is provided. The method includes: a) providing a periodical crank pulse signal; b) providing a periodical cam...
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6976461 |
Finger lever of a valve train of an internal combustion engine
The invention proposes a switchable finger lever (1) for a valve train of an internal combustion engine having a compact structure. Through the inner lever (5) of the finger lever (1) it is...
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6957635 |
Valve timing control for marine engine
An engine for a marine drive has a combustion chamber. An engine body of the engine defines intake and exhaust ports communicating with the combustion chamber. An air induction system communicates...
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6932033 |
System and method for improving VCT closed-loop response at low cam torque frequency
Known method suitable for implementation in a computer program product for VCT closed-loop control system generally includes an integrator to eliminate the steady state error. A novel method...
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6920855 |
Valve timing adjustment device
A valve timing adjustment device for promptly switching a rotational phase includes a guide rotary body having a guide passage containing a movable body. The guide passage includes a variable...
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6915767 |
Method of determining the position of a cam phaser
A method of determining the position of a cam phaser determines and stores an adaptively updated base offset corresponding to the phase offset of a camshaft relative to a crankshaft for a reference...
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6910450 |
Variable valve timing structure for outboard motor engine
An internal combustion engine for an outboard motor that comprises at least one combustion chamber formed by at least a engine body, a cylinder head assembly and a piston that moves relative to the...
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6907853 |
Variable valve timing control device
A variable valve timing control device includes a housing, a rotor at least one shoe portion dividing a fluid pressure chamber provided between the housing and the rotor, a plate member closing one...
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6883475 |
Phaser mounted DPCS (differential pressure control system) to reduce axial length of the engine
An internal DPCS feeds (13) engine oil pressure (32) to one side (19) of the spool and a solenoid controlled pressure (14) to a piston (12) that has twice the area as that side (19) of the spool....
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6883479 |
VCT phaser having an electromagnetic lock system for shift and lock operation
A locking device is provided to lock the phaser vane and sprocket together at all times except when the phaser is moving from position to position. The locking device ensures that the phaser is...
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6883478 |
Fast-acting lock pin assembly for a vane-type cam phaser
A fast-acting rotor-locking mechanism for a vane-type camshaft phaser. A straight-sided locking pin is disposed in a bushing in the rotor and is urged into a sprocket well by a return spring. A pad...
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6863037 |
Control unit for variable valve timing mechanism
A controller that outputs control signals to an actuator of a variable valve timing mechanism is integrally equipped with a cam sensor that takes out from a camshaft signals for discriminating a...
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6854435 |
Variable duration valve timing camshaft
A variable duration valve timing camshaft is disclosed. The camshaft has a shaft with fixed cam lobes and lobe modifying elements that are adapted to move outwardly as the rate of rotation of the...
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6845740 |
Internal combustion engine adjusting the rotation angle of a camshaft with respect to a crankshaft
A device for hydraulically adjusting the rotation angle of a camshaft with respect to a crankshaft of an internal combustion engine: A drive unit connected to a crankshaft and an output unit...
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6832585 |
Valve timing controller of internal combustion engine
A valve timing control device includes a drive pulley 2 driven by a crankshaft of an engine, and a driven camshaft 1. The camshaft 1 has a cam 70 that serves to open and close an intake port 72. An...
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6826980 |
Drive and control systems for high speed intermittent motion generations, control and applications
The present invention seeks to provide a system for high speed intermittent motion. The system consists of one or more intermittent motion generators. Each motion generator consists of a first and...
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6814037 |
Variable camshaft timing for internal combustion engine with actuator locking
A variable camshaft timing system having a camshaft with a vane-type rotor, where oscillation of the housing relative to the vane is actuated by pressurized engine oil, derived in part from a...
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6810843 |
Control method for achieving expected VCT actuation rate using set point rate limiter
In a VCT system having a feedback loop for controlling a phaser angular relationship, a control law disposed to receive a plurality of set point values and a plurality of feed back values is...
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6789517 |
Method for managing thermal load on an engine
A method for adjusting the timing of an internal combustion engine having a crankshaft and a camshaft to manage the thermal load on the engine. The method includes the step of altering the timing...
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6779500 |
Variable valve timing control apparatus
A variable valve timing control apparatus includes a relative rotation control mechanism and a fluid pressure passage. The relative rotation control mechanism restrains a relative rotation between...
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6776131 |
Internal combustion engine with at least two camshafts arranged next to one another and in each case produced with a device for rotary angle adjustment with respect to a crankshaft
In an internal combustion engine with two camshafts arranged next to one another and each mounted in a radial bearing in the cylinder head and hydraulic device for rotary angle adjustment of each...
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6772721 |
Torsional assist cam phaser for cam in block engines
A phaser for maintaining an angular relationship between a crank shaft and a cam shaft or among more than one cam shafts is provided. The phaser includes a rotor having a plurality of vanes...
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6766775 |
Method and system for increasing the estimation accuracy of cam phase angle in an engine with variable cam timing
A system and method for determining an estimation of actual cam phase angle of increased accuracy are based on an observed cam phase angle derived from a cam phase sensor and a predicted cam phase...
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6758178 |
Valve timing control device
A valve timing control device for adjusting the timing of opening a valve of an internal combustion engine includes a torsion spring having one end engaged with a shoe housing and the other end...
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6755164 |
Variable valve timing apparatus for vehicle engine
A variable valve timing apparatus for vehicle engine, the apparatus comprising: a rotor secured at a tip end of a cam shaft; a housing with the rotor rotatably mounted therein; and a piston mounted...
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6752108 |
Four-cycle engine for marine drive
A four-cycle engine for a marine drive includes an improved construction. The engine has an air induction device for introducing air to a combustion chamber. The air induction device defines an...
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6748912 |
Method to vent air from a cam phaser with a center mounted spool valve
A variable camshaft phase adjustment device (phaser) for an internal combustion engine having at least one camshaft. The phaser has a housing having an outer circumference for accepting a drive...
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6745732 |
VCT cam timing system utilizing calculation of intake phase for dual dependent cams
An engine with dependent intake cams requires a different method and formula to determine the phase of the intake cams. The exhaust camshaft drives the intake camshaft and so the intake cam...
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6742484 |
Device for relative rotational angle adjustment of a cam shaft of an internal combustion engine to a drive wheel
At least one locking device between an interior part and cellular wheel, which is equipped with a movable locking element that acts together with at least one counter-element in a respectively...
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6736096 |
Method and apparatus for setting valve lift within a cylinder
A variable valve actuating (VVA) mechanism includes a frame member and a rocker. The rocker includes a first end and a second end, with the first end being pivotally coupled to the frame. A link...
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6729283 |
Externally mounted vacuum controlled actuator with position sensor control means to reduce functional and magnetic hysteresis
The present invention controls the position of a center mounted spool valve (192) with an externally mounted vacuum controlled actuator (301). The actuator position is preferably controlled by a...
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6725817 |
Variable phase drive mechanism
A variable phase drive mechanism is described for providing drive from an engine crankshaft to two sets of cams. The drive mechanism comprises a drive member 32 connectable for rotation with the...
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6722221 |
Adjustable cam shaft sprocket
An adjustable cam shaft sprocket for allowing small adjustments to a cam shaft. The adjustable cam shaft sprocket comprises an inner member and an outer member, the inner member being placed...
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