Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Transportation & Automotive
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:

Class Number Class Name Patents
123/90.51 Composition, surface treatment manufacture 151
123/90.49 Cushion and silencer 57
123/90.52 Lash adjustment 126
123/90.5 Rotation prevention 155


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
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
7350491 Lash adjuster and valve system Apr. 1, 2008
7350486 Variable valve actuation mechanism Apr. 1, 2008
7350492 Guide gib for the valve operating mechanism of an internal combustion engine 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
7296549 Hydraulic valve lash adjusters Nov. 20, 2007
7296548 Deactivation roller hydraulic valve lifter Nov. 20, 2007
7284519 Device for hydraulic lash adjustment Oct. 23, 2007
7284520 Valve lifter body and method of manufacture Oct. 23, 2007
7273026 Roller follower body Sep. 25, 2007
7263956 Valve lifter assembly for selectively deactivating a cylinder Sep. 4, 2007
7261075 Hydraulic support element Aug. 28, 2007
7246590 Valve train of an internal combustion engine comprising a tappet and a tappet pushrod Jul. 24, 2007
7246584 Force-transmitting arrangement for a valve train of an internal-combustion engine Jul. 24, 2007
7246585 Valve-deactivating hydraulic lifter having a vented internal lost motion spring Jul. 24, 2007
7246586 Wear-resistant coating and process for producing it Jul. 24, 2007
7246587 Deactivating element for a valve train of an internal combustion engine Jul. 24, 2007
7246589 Valve train of an internal combustion engine comprising a tappet and a tappet pushrod Jul. 24, 2007
7237520 Hydraulic valve-lash-adjusting element (HVA) Jul. 3, 2007
7219639 Drag lever of a valve mechanism in an internal combustion engine May. 22, 2007
7210439 Switching element for a valve train of an internal combustion engine May. 1, 2007
7210438 Internal combustion engine having valves with variable actuation each provided with a hydraulic tappet at the outside of the associated actuating unit May. 1, 2007
7210437 Periodically actuable tappet for a valve train or a pump drive May. 1, 2007
7207303 Switching element Apr. 24, 2007
7207302 Valve lifter body Apr. 24, 2007
7191745 Valve operating assembly Mar. 20, 2007
7185620 Cam follower of a valve drive of an internal combustion engine Mar. 6, 2007
7159552 Cup tappet for an internal combustion engine Jan. 9, 2007
7159553 Valve train for an internal combustion engine Jan. 9, 2007
7156061 Valve lifter Jan. 2, 2007

1 2 3 4 5 6


 
 
  Recently Added Patents
Stable crystalline form of bifeprunox mesylate (7-[4-([1,1'-biphenyl]-3-ylmethyl)-1-piperazinyl]-2(3H)-benzoxazolone monomethanesulfonate)
Mobile adaptive cache
Blackjack push
Method and apparatus providing deception and/or altered operation in an information system operating system
Light analyzer device and method for detecting objects utilizing the light analyzer device
Method for obtaining single chain antibodies to human interferon .alpha.2b
Footwear upper
  Randomly Featured Patents
Transgenic non-human mammals producing BSSL variants
Waterproof belt container for portable radio or tape player
Testing an operational support system (OSS) of an incumbent provider for compliance with a regulatory scheme
Gelled emulsion products containing chitosan
Muntin assembly and method of installing
Coupling unit
Lock with a resettable combination
Method and system for reduction of quantization-induced block-discontinuities and general purpose audio codec
Acylamino oxo or hydroxy substituted alkylamino thiazines and thiazepines
Cleaning system for cleaning ink in a semiconductor wafer