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Match Document Document Title
7621244 Titanium alloy tappet, manufacturing method thereof, and jig used in manufacturing tappet  
A titanium alloy tappet that is slidable at a high speed is provided by covering shortcomings of lightweight and high-strength titanium alloy. A surface 1 A of at least a slidable portion of the...
7617807 Engine and valvetrain with dual pushrod lifters and independent lash adjustment  
A multiple cylinder internal combustion engine having a camshaft-driven valvetrain with a camshaft disposed within an engine block includes at least two intake and/or exhaust valves with a pair of...
7610886 Force transmitting arrangement for a valve drive of an internal combustion engine  
A force transmitting device ( 4 ) for a valve drive ( 1 ) of an internal combustion engine ( 2 ) with a hydraulic valve lash compensating device ( 6 ) is provided. The force transmitting device ( 4...
7610887 Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface  
A valve-deactivation hydraulic valve lifter including a recessed face on the pin housing for making contact with the a crowned surface region of a roller follower. The lifter includes a pin housing...
7610888 Non-guided tappet and fuel injector using same  
A fuel injector includes an injector body having an internal surface and an external surface. A tappet assembly includes a non-guided tappet and a plunger assembly, and is mounted on the injector...
7600499 Titanium alloy valve lifter  
A lightweight and high-strength valve lifter is excellent in wear resistance and sliding properties. The valve lifter is made of a titanium alloy having a hardened layer on the top surface thereof,...
7568461 Tappet roller end shape for improved lubrication and combination with fuel pump and engine  
Improved end shapes are provided for laterally confined tappet rollers in high pressure fuel pumps and similar applications for improving lubrication and wear performance when rotating against a...
7565890 Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement  
A rail used as a torsional stop for the valve train of an internal combustion engine is disclosed. The rail includes spaces ( 10 ) which are arranged in a row spaced apart at a distance from one...
7556006 Valve mechanism of engine  
To provide an inner shim that is unlikely to fall off from a spring retainer even when an anomalous operation of a valve occurs. A spring retainer fixed to the upper end portion of a valve shaft...
7556005 Automatic tappet clearance adjusting device and method  
An automatic tappet clearance adjuster comprising a unit for adjusting the projection by advancing/retracting an adjust screw from the forward end of a rocker arm, a section for detecting the...
7530339 Durable valve lifter for combustion engines and methods of making same  
A valve system lifter for combustion engines includes a hard metal face pad connected to a lower-grade metal lifter body. The connecting material is one or more materials that are different from...
7506624 Variable engine valve actuation system  
A valve actuation system for a power system is provided. The valve actuation system has an engine valve moveable to selectively prevent or allow a flow of fluid relative to the engine valve. The...
7497194 Tappet clearance automatic adjusting device and adjusting method  
A tappet clearance automatic adjusting device comprising an adjusting unit for advancing/retracting an adjust screw from the forward end of a rocker arm and adjusting the projection amount, a...
7484488 Dual valve lift blip with single cam lobe for gasoline engines  
A tappet assembly includes a first follower engaging a cam lobe profile, and a second follower engaging an engine poppet valve. A latch member is operable to fix the first follower in an extended...
7484489 Dual oil feed structure of cylinder de-activation engine for vehicle  
Disclosed is a dual oil feed structure of a cylinder de-activation engine for a vehicle, comprising: (a) a main oil hole supplying oil to a hydraulic lash adjuster to adjust a valve gap; and (b) a...
7478615 Axial fixation of a spring support part of a switchable tappet  
The invention relates to an axial fixation ( 17 ) of a spring support part ( 9 ) of a switchable tappet ( 1 ) for direct transmission of a cam stroke to a tappet push-rod ( 7 ) of a valve drive of...
7469668 Valve-moving device for engine  
In an engine in which a lift amount of a valve can be changed continuously, an engine valve operating system including a valve lift-changing mechanism is capable of increasing and decreasing the...
7464680 Switching element for a valve train of an internal combustion engine  
The invention proposes a switching element ( 1 ) for a valve train of an internal combustion engine, particularly for valve deactivation, with a simple-to-implement measure for adjusting the...
7464679 Hydraulic lash adjuster  
What is proposed is a hydraulic lash adjuster ( 1 ), for example for a valve train of an internal combustion engine. The lash adjuster ( 1 ) comprises a hollow cylindrical housing ( 2 ) that is...
7464677 Compact lash adjuster feed channel apparatus  
The apparatus of the present invention provides a lash adjuster feed channel for an engine assembly. The engine assembly includes first and second sets of hydraulic lash adjusters responsive to a...
7458352 Switchable valve drive element of an internal combustion engine  
A switchable valve drive element of an internal combustion engine can be actuated hydraulically. A valve tappet which can be displaced axially in a bore of the machine housing by the cam of a...
7434557 Hydraulic valve clearance compensation element  
A hydraulic reverse spring valve clearance compensation element (RSHVA) for a valve train of an internal combustion engine comprising: a housing ( 2 ), which has a blind bore ( 3 ), in which...
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...
7404386 Multi-step valve actuation system  
A multi-step valve actuation system is provided to selectively open a poppet valve of an internal combustion engine having a camshaft rotatably supported by a cylinder block. The multi-step valve...
7401584 Adjustable engine  
A switchable cam follower ( 1 ) is proposed which serves to transmit a cam stroke in a variable manner from a cam to valve timing mechanism elements of an internal combustion engine. The cam...
7395792 Deactivation roller hydraulic valve lifter  
A deactivation valve lifter includes a lifter body. The lifter body has a first end configured for engaging a cam of an engine and at least one annular pin chamber. A pin housing includes a pin...
7389757 Force-transmitting arrangement for a valve train of an internal-combustion engine  
A force-transmitting arrangement ( 4 ) for a valve train ( 1 ) of an internal-combustion engine ( 2 ) with hydraulic valve play compensation device ( 6 ) with a hollow cylindrical compensation...
7387098 Cam follower  
A cam follower includes a roller on which a cam rolls. A material ratio Rmr (C) (C: a section level %) of an radially outer surface of the roller is set to relations of 0%<Rmr (10%)≦10%, a...
7380531 Variable valve drive for changing the control timing of cam-actuated gas-exchange valves  
A variable valve drive for changing control timing of cam-actuated gas-exchange valves of an internal combustion engine is provided, with a tappet ( 6 a , 6 b , 6 c ), which, with convex cam...
7373907 Valve lifter guide  
A valve lifter guide ( 100, 900, 1100 ) includes at least one conduit ( 101, 901, 1101 ). The conduit ( 101, 901, 1101 ) has a first inwardly-curved surface ( 103 ) opposed to a second...
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...
7363894 Switchable valve-drive component  
A switchable valve-drive component ( 1 ) for variable transmission of a stroke generated by one or more cam projections to a gas-exchange valve of an internal combustion engine is provided. The...
7360517 Valve actuator for actuating a gas exchange valve of an internal combustion engine  
A valve actuator for operating a gas exchange valve of an internal combustion engine has a sleeve-shaped positioning piston which is connected to a valve stem, has at least two shell-shaped wedge...
7350492 Guide gib for the valve operating mechanism of an internal combustion engine  
In a guide gib for the valve operating mechanism of an internal combustion engine, having holding spaces ( 12, 13 ), which are arranged in the gib ( 8 ) at intervals one behind the other, for valve...
7350486 Variable valve actuation mechanism  
The present invention discloses a variable valve actuation mechanism, characterized in that movement of a sliding block is controlled for selectively receiving a driving force exerted from an...
7350491 Lash adjuster and valve system  
An added-motion hydraulic valve system is disclosed. The added-motion hydraulic valve system includes an engine valve actuator that causes movement of an engine valve, fluid that moves through a...
7343888 Springless valve system  
A poppet valve actuation system utilizing separate opening and closing cams that press against opening and closing cam followers, respectively. The opening and closing cam followers are linked to...
7341034 Hydraulic tappet  
A hydraulic tappet including: a bottomed cylindrical body; a plunger slidably fitted in the body; a check valve mounted at one end of the plunger so that the check valve is interposed between a...
7325522 Valve drive for a cam-operated valve  
A valve drive ( 1 ) for a cam-operated valve ( 2 ) of an internal combustion engine is provided, in which a closing force is applied to the valve ( 2 ) against the opening direction of the valve (...
7322329 Assembly process for hydraulic valve lifters to reduce variation in valve lift  
Valve lift variation associated with a deactivation roller hydraulic valve DRVHL (DRHVL) can result in unacceptable valve overlap and idle conditions for an internal combustion engine. Two sources...
7322328 Variable cam follower for an internal combustion engine  
A variable cam follower ( 1 ) is provided for changeable transmission of a lifting movement of a cam to valve train elements allocated to the cam follower ( 1 ) in an internal combustion engine....
7311074 Guide rail for valve tappet of an internal combustion engine  
A guide rail ( 1, 22 ) for valve tappets ( 2 ) of an internal combustion engine is provided. The guide rail ( 1, 22 ) has receptacle spaces ( 4 ), which are each used for receiving one of the valve...
7305952 Engine valve clearance adjusting method  
A technique which allows an unskilled person to simply adjust a tappet clearance in an engine valve sometimes has a problem in that it can inaccurately adjust clearance because the abutment seat of...
7299778 Switchable cam follower  
The invention proposes a switchable cam follower ( 1 ) for a valve train of an internal combustion engine, said cam follower comprising two elements ( 2, 3 ) telescoped into each other and, axially...
7299777 Fastening of a bearing bolt to a roller tappet  
A connection of a bearing bolt ( 6 ) in a cylindrical housing ( 1 ) of a roller tappet ( 2 ) that is actuated in a direction of a longitudinal axis (Z) is provided, especially for a tappet push-rod...
7296549 Hydraulic valve lash adjusters  
In hydraulic valve last adjusters for the timing gear of an internal combustion engine comprising cylinder valve lift reversal or deactivation, said adjusters being loaded by cams of one or more...
7284519 Device for hydraulic lash adjustment  
A device ( 1 ) for the hydraulic lash adjustment for several identically acting gas-exchange valves per cylinder of a valve train of an internal combustion engine is provided, the device ( 1...
7284520 Valve lifter body and method of manufacture  
The present invention relates to a lash adjuster body, comprising A lash adjuster body, comprising an outer surface, enclosing a cavity, wherein the cavity includes an inner surface configured to...
7273026 Roller follower body  
The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner...
7263956 Valve lifter assembly for selectively deactivating a cylinder  
A valve lifter assembly for deactivating a cylinder in an internal combustion engine. The valve lifter assembly is provided with a plunger movably disposed within a bore of a main body member to...
Matches 1 - 50 out of 284 1 2 3 4 5 6 >