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Class Information
Number: 123/90.48
Name: Internal-combustion engines > Poppet valve operating mechanism > Tappet
Description: Device comprising an element which is in direct contact with the actuating element (cam) and which transmits (ordinarily by reciprocatory movement) the motion of that element to other components of the operating mechanism.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7621244 |
Titanium alloy tappet, manufacturing method thereof, and jig used in manufacturing tappet |
Nov. 24, 2009 |
| 7617807 |
Engine and valvetrain with dual pushrod lifters and independent lash adjustment |
Nov. 17, 2009 |
| 7610888 |
Non-guided tappet and fuel injector using same |
Nov. 3, 2009 |
| 7610886 |
Force transmitting arrangement for a valve drive of an internal combustion engine |
Nov. 3, 2009 |
| 7610887 |
Valve-deactivating hydraulic lifter having a contoured pin housing bottom surface |
Nov. 3, 2009 |
| 7600499 |
Titanium alloy valve lifter |
Oct. 13, 2009 |
| 7568461 |
Tappet roller end shape for improved lubrication and combination with fuel pump and engine |
Aug. 4, 2009 |
| 7565890 |
Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement |
Jul. 28, 2009 |
| 7556006 |
Valve mechanism of engine |
Jul. 7, 2009 |
| 7556005 |
Automatic tappet clearance adjusting device and method |
Jul. 7, 2009 |
| 7530339 |
Durable valve lifter for combustion engines and methods of making same |
May. 12, 2009 |
| 7506624 |
Variable engine valve actuation system |
Mar. 24, 2009 |
| 7497194 |
Tappet clearance automatic adjusting device and adjusting method |
Mar. 3, 2009 |
| 7484488 |
Dual valve lift blip with single cam lobe for gasoline engines |
Feb. 3, 2009 |
| 7484489 |
Dual oil feed structure of cylinder de-activation engine for vehicle |
Feb. 3, 2009 |
| 7478615 |
Axial fixation of a spring support part of a switchable tappet |
Jan. 20, 2009 |
| 7469668 |
Valve-moving device for engine |
Dec. 30, 2008 |
| 7464677 |
Compact lash adjuster feed channel apparatus |
Dec. 16, 2008 |
| 7464680 |
Switching element for a valve train of an internal combustion engine |
Dec. 16, 2008 |
| 7464679 |
Hydraulic lash adjuster |
Dec. 16, 2008 |
| 7458352 |
Switchable valve drive element of an internal combustion engine |
Dec. 2, 2008 |
| 7431001 |
Rail used as a torsional stop for the valve train of an internal combustion engine, and roller tappet arrangement |
Oct. 7, 2008 |
| 7426912 |
Oil supply circuit for cylinder deactivation system |
Sep. 23, 2008 |
| 7404386 |
Multi-step valve actuation system |
Jul. 29, 2008 |
| 7401584 |
Adjustable engine |
Jul. 22, 2008 |
| 7395792 |
Deactivation roller hydraulic valve lifter |
Jul. 8, 2008 |
| 7389757 |
Force-transmitting arrangement for a valve train of an internal-combustion engine |
Jun. 24, 2008 |
| 7387098 |
Cam follower |
Jun. 17, 2008 |
| 7380531 |
Variable valve drive for changing the control timing of cam-actuated gas-exchange valves |
Jun. 3, 2008 |
| 7373907 |
Valve lifter guide |
May. 20, 2008 |
| 7370617 |
Variable valve operating mechanism of four-stroke internal combustion engine |
May. 13, 2008 |
| 7363894 |
Switchable valve-drive component |
Apr. 29, 2008 |
| 7360517 |
Valve actuator for actuating a gas exchange valve of an internal combustion engine |
Apr. 22, 2008 |
| 7350492 |
Guide gib for the valve operating mechanism of an internal combustion engine |
Apr. 1, 2008 |
| 7350486 |
Variable valve actuation mechanism |
Apr. 1, 2008 |
| 7350491 |
Lash adjuster and valve system |
Apr. 1, 2008 |
| 7343888 |
Springless valve system |
Mar. 18, 2008 |
| 7341034 |
Hydraulic tappet |
Mar. 11, 2008 |
| 7325522 |
Valve drive for a cam-operated valve |
Feb. 5, 2008 |
| 7322329 |
Assembly process for hydraulic valve lifters to reduce variation in valve lift |
Jan. 29, 2008 |
| 7322328 |
Variable cam follower for an internal combustion engine |
Jan. 29, 2008 |
| 7311074 |
Guide rail for valve tappet of an internal combustion engine |
Dec. 25, 2007 |
| 7308879 |
Deactivation roller hydraulic valve lifter |
Dec. 18, 2007 |
| 7305952 |
Engine valve clearance adjusting method |
Dec. 11, 2007 |
| 7299777 |
Fastening of a bearing bolt to a roller tappet |
Nov. 27, 2007 |
| 7299778 |
Switchable cam follower |
Nov. 27, 2007 |
| 7296548 |
Deactivation roller hydraulic valve lifter |
Nov. 20, 2007 |
| 7296549 |
Hydraulic valve lash adjusters |
Nov. 20, 2007 |
| 7284519 |
Device for hydraulic lash adjustment |
Oct. 23, 2007 |
| 7284520 |
Valve lifter body and method of manufacture |
Oct. 23, 2007 |
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