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US20110277715 COLD-FORMED FLAT TOP PLUNGER FOR USE IN A HYDRAULIC LASH ADJUSTER AND METHOD OF MAKING SAME  
A cold-formed flat top plunger blank is provided for use in a hydraulic lash adjuster. An end wall at the first end of the plunger body defines a flat top surface that is cold-formed to final...
US20090031977 LOW PROFILE VALVE LIFTER ASSEMBLY  
The low profile valve lifter assembly has flats inside the bore of the outer housing and walls are formed and extended down from the plate of the guide such that the walls align with the flats of...
US20100307438 VARIABLE TAPPET  
A variable tappet may include an outer tappet body, an inner tappet body that is slidably disposed within the outer tappet body and selectively connected with the outer tappet body, a lost motion...
US20080190391 VALVE TRAIN ASSEMBLY WITH MAGNET  
The valve train assembly with magnet uses the magnet to collect ferrous metal particles that are in the oil prior to their arrival at the high pressure cavity of the hydraulic lash adjuster. The...
US20110011361 COUPLING DEVICE  
A device (22) is adapted to couple a finger follower (14) and a hydraulic lash adjuster (18) for use in a valve train (10) of an engine. The hydraulic lash adjuster (18) includes a plunger (34)...
US20090013950 DUAL VALVE LIFTER ASSEMBLY  
The dual valve lifter assembly has a dual valve lift with two hydraulic lash adjusters therein and a guide for orienting and preventing rotation of the dual valve lifter. The guide has four ledges...
US20090199804 Cam lobe profile to accommodate mechanical lash of a switchable hydraulic lash adjuster  
In an engine valve train equipped with a DHLA, the radius of the base circle of a cam lobe is decreased, relative to the radius of the base circle of a cam lobe in an engine equipped with an HLA,...
US20090007872 SWITCHABLE DUAL LIFTER  
The switchable dual lifter has two hydraulic lash adjusters, one which is fixed within the common housing, and the other which is movable to allow for deactivation of one of the two valves acted on...
US20090159030 SWITCHABLE HYDRAULIC LASH ADJUSTER WITH SPHERICAL LOCKING PINS  
The switchable hydraulic lash adjuster uses balls that move radially in order to lock and unlock the switchable elements in the hydraulic lash adjuster. An axially movable piston acts on the ball...
US20080190390 LIFT AMOUNT ADJUSTING DEVICE IN LIFT-VARIABLE VALVE-OPERATING MECHANISM  
In a lift amount adjusting device in a valve-operating mechanism which changes at least a lift amount, a rocker arm is rockably arranged in a driving-force transmitting path for transmitting a...
US20110067661 LOST MOTION VARIABLE VALVE ACTUATION SYSTEM WITH VALVE CATCH PISTON  
Hydraulic lost motion systems and methods for actuating an internal combustion engine valve include a master piston slidably disposed in a housing. One or more master piston fluid passages extend...
US20130298859 HYDRAULIC LASH ADJUSTER, A VALVE TRAIN COMPRISING THE SAME AND A METHOD OF ASSEMBLING THE SAME  
A hydraulic lash adjuster includes a body and a plunger assembly slideably mounted with respect to the body. A first chamber is defined by the body and the plunger assembly and is configured to...
US20070125334 Roller Type hydrocushion mechanical tappet  
A tappet comprises a foot having a convex cam contact surface and an axially extending hub, a tappet body having a lower body portion with a lower axial bore formed therein to receive the axially...
US20100031907 VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE, IN PARTICULAR WITH A DECOMPRESSION BRAKE  
A valve drive with a decompression brake for an internal combustion engine, which has a camshaft with a cam, a rocker arm for transmitting the cam stroke to a gas exchange valve, a pivot bearing...
US20120042843 HYDRAULIC LASH ADJUSTER FOR INTERNAL COMBUSTION ENGINE  
OBJECT To provide a hydraulic lash adjuster capable of retaining a large amount of hydraulic oil, in a reservoir communicated with a high-pressure chamber when the engine is stopped.MEANS FOR...
US20090044775 Hydraulic Lash Adjuster With Damping Device  
A system and method for lash adjustment in the valvetrain of an internal combustion engine include a hydraulic lash adjuster having a damping device to limit rate of movement of a plunger relative...
US20090173303 HYDRAULIC LASH ADJUSTER EQUIPPED WITH AUXILIARY CHECK VALVE  
An auxiliary check valve is provided in a hydraulic lash adjuster of the type wherein the plunger-to-body clearance is sealed. The auxiliary check valve is derived so that it remains open until the...
US20130186359 DEACTIVATING HYDRAULIC VALVE LASH ADJUSTER/COMPENSATOR WITH TEMPORARY LASH COMPENSATION DEACTIVATION  
A valve operating mechanism includes a pin housing housed in a lash adjuster and a lash adjustment chamber. A sync pin is slidably received within the housing between an activating position and a...
US20130104825 HYDRAULIC VALVE LIFTER PUSHROD SEAL  
A hydraulic valve lifter apparatus including a seal at the interface of a pushrod seat and a pushrod is provided herein. In one form, the hydraulic valve lifter apparatus includes a body, a piston...
US20050279305 Valve drive  
Valve drive with a first actuator (1) for opening and/or closing a gas-exchange valve (2), in particular of an internal combustion engine, and a separate second actuator (3) for the valve-play...
US20080271694 Limited travel hydraulic lifter and methods of assembly and use thereof  
A travel limited plunger for a hydraulic lifter for, among other purposes, use in racing and/or other high performance applications. In one variation, an existing retaining clip is replaced by a...
US20090083959 HYDRAULIC VALVE-LASH COMPENSATION ELEMENT  
A method for assembling a control valve in a hydraulic valve-lash compensation element, which is constructed for the control drive of an internal combustion engine as a reverse spring element is...
US20060266320 Valve lifter with integral hydraulic lash adjuster and a method of measuring its dry length  
A roller hydraulic valve lifter comprising a prior art lifter body assembly having a roller assembly at a first end for following a camshaft cam, an oil chamber connectable to an engine oil...
US20090314237 SWITCHABLE BUCKET TAPPET  
A switchable bucket tappet for a valve drive of an internal combustion engine, which has a bucket base body with a ring-shaped base guided by a skirt projecting from the outer edge of the base, in...
US20090255495 Method of Variable Valve Timing in an Internal Combustion Engine  
A method of variable valve timing in an internal combustion engine in which the valve opening and closing timing of the actuated gas exchange valves of the internal combustion engine can be varied...
US20100071649 BALL PLUNGER FOR USE IN A HYDRAULIC LASH ADJUSTER AND METHOD OF MAKING SAME  
A cold-formed ball plunger blank is provided for use in manufacturing a finished ball plunger used in a hydraulic lash adjuster that includes a check valve assembly having a check ball and a...
US20090031969 FREELY ROTATABLE HYDRAULIC PIVOT ELEMENT  
The freely rotatable hydraulic pivot element for an internal combustion engine has four oil inlets which are in fluid communication with the lash adjusting element inside the pivot element and in...
US20100199932 COMPACT VALVE ACTUATION MECHANISM FOR BARREL INTERNAL COMBUSTION ENGINES  
A multi-cylinder barrel internal combustion engine includes a valve actuation mechanism having generally L-shaped rockers for actuating valves in the engine. The rockers are arranged in pairs each...
US20120067312 Engine that is Equipped with Variable Valve Device  
An engine includes a hydraulic pressure lash adjuster (HLA) pivotally supporting an end of a swing arm and having a valve supporting the other end of the swing arm, wherein the hydraulic pressure...
US20120325171 Hydraulic Lash Adjuster Including Band Of Radial Recirculation Openings  
A hydraulic lash adjuster includes a body defining an axial bore and having an open end and a closed end. A hollow piston is telescopically received within the axial bore and defines a fluid...
US20120067313 ENGINE EQUIPPED WITH VARIABLE VALVE DEVICE  
An engine that may be provided with a variable valve device may include an hydraulic pressure lash adjuster pivotally supporting one side of a swing arm, a valve supporting the other side of the...
US20090064955 VALVE CONTROL FOR RECIPROCATING PISTON INTERNAL COMBUSTION ENGINE  
Valve controller for reciprocating piston internal combustion engines with at least two intake and/or exhaust gas-exchange valves for each piston/cylinder unit, wherein the gas-exchange valves are...
US20070044746 HYDRAULIC PLAY COMPENSATION DEVICE  
The hydraulic play compensation device, having an outer cylinder part which is closed on one side by a base and in which a piston element which lies on its inside is guided so as to be...
US20100275866 Switchable Valve Lifter Having a Mis-Assembly Indicator  
An improved SHVL for an internal combustion engine comprises an improved arrangement for locking a spring tower into a pin housing. The spring tower is provided with an annular OD groove as in the...
US20050183686 Hydraulic lash adjuster  
A hydraulic lash adjuster for an internal combustion engine is disclosed. The hydraulic lash adjuster includes a low-pressure chamber defined in the plunger and filled with a hydraulic fluid and a...
US20090199805 Deactivating hydraulic lash adjuster for oriented mounting in an engine  
A deactivating hydraulic lash adjuster comprising a pin housing slidably disposed in a body and having at least one lock pin disposed in a transverse bore for extending into a receiver feature in...
US20070272185 HYDRAULIC LASH ADJUSTER FOR AN INTERNAL COMBUSTION ENGINE  
A hydraulic lash adjuster for a valve train of an internal combustion engine is provided, with the hydraulic lash adjuster including a circular cylindrical housing in which a piston (22) is...
US20090320780 CONTROL ARRANGEMENT FOR A GAS EXCHANGE VALVE IN A PISTON ENGINE AND METHOD OF CONTROLLING A GAS EXCHANGE VALVE IN A PISTON ENGINE  
A control arrangement for a gas exchange valve in a piston engine adapted between the camshaft of the engine and the valve mechanism, which control arrangement comprises a body part and a chamber...
US20100186701 ENGINE INCLUDING CYLINDER DEACTIVATION ASSEMBLY AND METHOD OF CONTROL  
A method of purging air from an oil passage in communication with a lifter assembly in an engine assembly may include isolating the oil passage from a pressurized oil source while the lifter...
US20090020088 LASH ADJUSTER AND VALVE APPARATUS  
A lash adjuster of the invention includes a body in a cylindrical shape and a plunger inserted to inside of the body. The plunger partitions a pressure chamber at inside of the body by being...
US20100024752 DEVICE FOR THE HYDRAULIC CONTROL OF GAS EXCHANGE VALVES OF A RECIPROCATING INTERNAL COMBUSTION ENGINE  
A device for hydraulic control of gas exchange valves of a reciprocating internal combustion engine which has slave cylinders, in operative connection with one or more gas exchange valves and,...
US20120272932 FLUID PRESSURE CONTROL VALVE  
A valve assembly configured to provide feed-back control of pressurized fluid in a gallery includes a housing and a pressure chamber. The valve assembly also includes a first passage for providing...
US20100037845 HYDRAULIC SUPPORT ELEMENT FOR A SWITCHABLE CAM FOLLOWER OF A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE  
A hydraulic support element for a switchable cam follower of a valve drive of an internal combustion engine, which has a pot-like housing with a bore, a pressure piston formed in one piece with an...
US20100077975 SWITCHABLE CUP TAPPET  
A switchable bucket tappet for a valve drive of an internal combustion engine, which has a bucket basic body with a ring-like base. A hollow-cylindrical projection protrudes from an inner edge of...
US20060180110 Hydraulic lash adjuster  
A hydraulic lash adjuster (1) for a valve train (16) of an internal combustion engine, said hydraulic lash adjuster (1) comprising a hollow cylindrical housing (2) and a pressure piston (3) that...
US20090266319 SYSTEM AND METHOD FOR PROVIDING HYDRAULIC VALVE LASH COMPENSATION FOR ELECTRICALLY ACTUATED INTERNAL COMBUSTION ENGINE POPPET VALVES  
A system and method for assembling an electrical valve actuator to a cylinder head is described. The system and method provide for lower assembly cost, improved concentricity between valve actuator...
US20060005797 Roller valve lifter  
A roller valve lifter apparatus for following an eccentric cam in an internal combustion engine includes a cylindrical roller, configured to roll upon the eccentric cam, and a lifter body, having a...
US20080066705 Lash adjuster  
A return spring 35 is formed using a compression coil spring that is installed so that its axial direction is an up-down direction. The return spring 35 is provided in a high-pressure chamber 14,...
US20090095240 Schaltbares Bauteil fuer einen Ventiltrieb einer Brennkraftmaschine  
The invention proposes a switchable component (1) for a valve train of an internal combustion engine, said component (1) comprising a housing (2) in whose bore (3) an axially displaceable inner...
US20090188457 Lash Adjuster  
A lash adjuster includes a cylindrical bottomed plunger mounted in a cylindrical bottomed body so as to be movable upward and downward and including a high-pressure chamber defined between an...
Matches 1 - 50 out of 55 1 2 >