Matches 501 - 550 out of 1489 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >
Match Document Document Title
6595170 Hydraulic valve-operating mechanism  
A mechanism for operating one or more valves of a piston device, in particular an intake or exhaust valve of an internal-combustion engine, which valve can move between an open position and a...
6594996 Method and system for engine braking in an internal combustion engine with exhaust pressure regulation and turbocharger control  
The present invention is directed to a system and method for controlling an engine braking system having an engine with at least one intake and exhaust valve, intake and exhaust manifolds, a...
6591798 Variable valve actuation assembly for an internal combustion engine  
A variable valve actuation assembly for actuation of an engine intake valve between low-lift and high-lift modes. The VVA assembly includes a special rocker assembly having a pivotable central...
6591797 Variable fulcrum rocker arm  
A variable ratio rocker arm is provided for use in combination with the valve stem and push rod of an internal combustion engine. The rocker arm has a toothed rack. A fulcrum rod is provided with a...
6591795 Captive volume accumulator for a lost motion system  
The present invention is directed to an innovative, economical method or system disclosing a captive volume in a hydraulic circuit which can be selectively hydraulically or pneumatically locked, or...
6588394 Model-based control of a solenoid-operated hydraulic actuator for engine cylinder deactivation  
An improved control method for a solenoid-operated hydraulic actuator for deactivating an engine valve mechanism characterizes the dynamic response of the mechanism based on a lumped parameter...
6588387 Rocker arm device for simultaneous control of valve lift and relative timing in a combustion engine  
A valve control system including a valve actuating camshaft (A), having a high lift cam (B) and a low lift cam (C), and an outer rocker arm ( 2 ) engaging the high lift cam, and an inner rocker arm...
6588386 Variable valve lift system  
The present invention relates to a variable valve lift system that varies a valve lift in two stages by selectively rigidly engaging a tappet shim. The system includes a tappet shim receiving an...
6584951 Individual hydraulic circuit modules for engine with hydraulically-controlled cylinder deactivation  
An internal combustion engine includes hydraulically-controlled cylinder deactivation and has an engine block with a plurality of cylinders formed therein. At least one-half of the cylinders are...
6584943 Variable compound rocker system for push rod and overhead camshaft engines  
A variable compound rocker system for varying the lift of intake valves of an internal combustion engine is provided. The system comprises a rocker shaft with eccentric rings non-rotatably attached...
6584942 Cylinder deactivation apparatus with vapor purge  
Deactivation apparatus for selected cylinders of an engine include switching hydraulic lash adjusters or valve lifters forming part of a valve train for actuating engine valves of the selected...
6578535 Valve-deactivating lifter  
A valve-deactivation hydraulic valve lifter including a conventional hydraulic lash adjuster means disposed within a pin housing slidably disposed in a lifter body. A transverse bore in the pin...
6578534 Variable valve operating system of internal combustion engine enabling variation of valve-lift characteristic  
In an engine employing a variable lift and working angle control mechanism enabling both a valve lift and a working angle of an intake valve to be continuously simultaneously varied depending on...
6575128 Variable-valve-actuation apparatus for internal combustion engine  
In a VVA apparatus, when an actual lift amount detected by a lift-amount detecting sensor exceeds a basic lift-amount target value by a predetermined value or more, ECU corrects a lift phase...
6575127 Valve operating control system in engine  
A pair of valve-timing controlling oil passages leading to a second valve-operating characteristic changing mechanism are defined in a lower camshaft holder, and a valve lift controlling oil...
6571758 Four-stroke internal combustion engine valve pause mechanism  
A valve pause mechanism of a four-stroke internal combustion engine includes a valve pause mechanism. A valve lifter fitted between a valve cam and a valve stem of a poppet valve is always pressed...
6568365 Pulse drive valve deactivator  
A valve deactivator is provided that is capable of being activated and deactivated by a pulse energy input. The valve deactivator includes an input member and an output member which are movable...
6568361 Valve operating device for internal combustion engines  
A valve operating device for an internal combustion engine enabling both valve timing and valve lift characteristic to be varied depending on engine operating conditions includes intake and exhaust...
6564764 Switchable tappet for directly transmitting a cam lift onto a tappet push rod  
A switchable tappet for directly transmitting a cam lift onto a tappet push rod, includes a housing having a push rod distal end which is formed with a ramp surface for contact by a cam. An inner...
6561150 Engine valve characteristic controller  
The cam face of an intake cam has a main lift portion, which causes an intake valve to execute a basic lift operation, and a sub lift portion, which assists the action of the main lift portion. The...
6561149 Rotary phase controller, and valve timing controller of internal combustion engine  
A rotary phase controller includes: a permanent magnet block, a yoke block, and an electromagnetic coil block. The permanent magnet block has a constitution where different magnetic pole surfaces...
6561148 Variable valve mechanism of internal combustion engine  
A swing cam to actuate engine valves is rotatably disposed about a drive shaft. A first eccentric cam is tightly disposed on the drive shaft. A ring-link is rotatably disposed on the first...
6560963 Variable timing to avoid turbocharger overspeed while engine braking under different atmospheric conditions  
A method of engine compression release braking with avoidance of turbine overspeed is disclosed. Initially, an electronic control module determines whether a turbine overspeed condition is present....
6557518 Cylinder deactivation apparatus  
Cylinder deactivation apparatus includes a simplified hydraulic circuit that provides oil to lash adjusters and to cylinder deactivation control passages through restricted passages adjacent the...
6553952 Electrically rotatable shaft  
The invention concerns an electrically rotatable adjusting shaft ( 1 ) of a fully variable mechanical valve train of an internal combustion engine, said adjusting shaft comprising an adjusting cam....
6553950 Internal-combustion engine with variable-operation valves and auxiliary hydraulic tappet  
In an internal-combustion engine with a hydraulic system for variable operation of the valves, the piston for operating each valve includes an auxiliary hydraulic tappet.
6550437 Variable-valve-actuation apparatus for internal combustion engine  
A VVA apparatus for an internal combustion engine includes a intake valve, and an alteration mechanism which variably controlling lift characteristics of the intake valve in accordance with the...
6550436 Intake valve control device of internal combustion engine  
An internal combustion engine has an intake valve control device for controlling at least intake valves. The control device comprises a first mechanism which varies a working angle of the intake...
6550435 Variable valve timing adjustable finger follower assembly  
A valve timing system for an internal combustion engine having a roller finger follower assembly including a lash adjustment mechanism. The roller finger follower assembly includes a base arm and a...
6550434 Selecting operating mode in an engine with a hybrid valvetrain  
A method for selecting which intake valves are operated in an internal combustion with intake valves operated by more than one type of actuation device is disclosed. A criterion for selecting which...
6550433 Engine valve actuator with valve seating control  
The present invention provides a hydraulic actuator for operating an engine valve, which includes a means for controlling the seating velocity of the valve. The design allows for free, unrestricted...
6546347 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...
6543399 Apparatus for adjusting a camshaft  
The present invention relates to an apparatus for adjusting a camshaft of an internal combustion engine with at least one electromotor which produces, by way of a planetary gear, the adjustment of...
6539902 Variable valve timing control apparatus of an internal combustion engine  
It is determined whether the current operation condition is in a transitional or steady state. If the operation condition is in a transitional state, then the transition gain is obtained by...
6536390 Variable valve-timing engine  
A variable valve-timing engine includes a VTC for adjusting a relative phase angle of an exhaust cam for opening and closing an exhaust valve and an intake cam for opening and closing an intake...
6532924 Variable valve actuating mechanism having automatic lash adjustment means  
A variable valve actuating mechanism includes an output cam pivotally disposed upon an input shaft. A first link arm is pivotally coupled at a first end thereof to the output cam. A rocker arm is...
6532922 Variable valve timing control device  
A variable valve timing control device includes a relative rotation control mechanism restricting relative rotation between the housing member and the rotor member at an intermediate phase position...
6532920 Multipositional lift rocker arm assembly  
A multiple lift position rocker arm 307 is provided which includes a body 10 and a pivotally mounted lost motion arm 44. A latch 120 is connected on one end of the body to prevent pivotal...
6530351 Apparatus for controlling valve timing of internal combustion engine  
An apparatus controls valve timing of an internal combustion engine that is provided with helical splines of an actuator for varying a phase difference in rotation and an actuator for varying a cam...
6530350 Internal-combustion engine with hydraulic system for variable operation of the valves and means for compensating variations in volume of the hydraulic fluid  
In an internal-combustion engine with a hydraulic system for variable operation of the engine valves, there is envisaged at least one supplementary reservoir bled off to the atmosphere,...
6526930 Valve timing control system for internal combustion engine  
A valve timing control system for an internal combustion engine for preventing dispersion of a control amount and unexpected release of a lock pin is provided. The valve timing control system is...
6526929 Device for relative angular adjustment between two drive-connected elements rotating at the same rotational speed  
A device for relative angular adjustment between two drive-connected elements rotating at the same rotational speed, in particular between a chain wheel and a camshaft of an internal combustion...
6523512 Control unit for adjusting the angle of rotation of a camshaft  
An angle of rotation of a camshaft relative to an angle of rotation of a crankshaft in internal combustion engines is adjusted for influencing the control times of a valve operation sequence. A...
6523510 Valve drive mechanism for engine  
A valve drive mechanism includes a tappet assembly which comprises a center tappet, a pair of side tappets between which the center tappet is interposed so as to move relatively to the side...
6520135 Apparatus for adjusting valve lift  
An apparatus for adjusting valve lift (VVL apparatus) is made up of a substantially cylindrical tappet casing having on an upper end thereof a cam contact portion which comes into contact with a...
6520129 Internal combustion engine with an hydraulic system for the variable driving of valves and a double-piston tappet  
In an internal combustion engine comprising an hydraulic system for the variable driving of valves, one tappet comprises two separate piston sections that are connected to two distinct pressure...
6516763 Method of controlling a device that varies the valve control times an internal combustion engine, especially of a camshaft adjusting device with hydraulically releaseable start lock  
A method of actuating a device for varying the valve timing of an internal combustion engine without jamming of the locking element during starting of the internal combustion engine, the solenoid...
6516761 Adjustable overhead rocker cam  
Disclosed is an overhead rocker cam valve operating device for an internal combustion engine and which is particularly useful for race cars or high performance automobiles. The device includes a...
6516760 Valves for i.c. engines with variable lifts and timings  
A variable timing system for i.c. engines, especially for motor vehicles, with suction and/or exhaust valves provided with hydraulic tappets in which the position of the oil inlet passages within...
6516759 Valve timing control apparatus for internal combustion engine  
A valve timing control apparatus for an internal combustion engine is capable of ensuring good response within a control range, stability outside the control range, and durability without...
Matches 501 - 550 out of 1489 < 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 >