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Class Information
Number: 123/90.56
Name: Internal-combustion engines > Poppet valve operating mechanism > Tappet > Lash adjustment > Self-operating > Hydraulic > Pressure flow upwardly into pressure chamber
Description: Device wherein the reciprocating hydraulic adjusting means has its pressure chamber located above (gravity-wise) its reservoir.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7246584 |
Force-transmitting arrangement for a valve train of an internal-combustion engine |
Jul. 24, 2007 |
| 6990935 |
Pivoting lifter control system using spool valve and check valve to recirculate oil |
Jan. 31, 2006 |
| 6901328 |
Method and arrangement for detecting the end of a start operation in an internal combustion engine of a motor vehicle |
May. 31, 2005 |
| 6748914 |
Refillable metering valve for hydraulic valve lifters |
Jun. 15, 2004 |
| 6510825 |
Internal combustion engine for motor vehicles and the like |
Jan. 28, 2003 |
| 6481395 |
Device for actuating a gas exchange valve |
Nov. 19, 2002 |
| 5086738 |
Motor brake for air-compressing internal combustion engines |
Feb. 11, 1992 |
| 5007388 |
Hydraulic valve lifter |
Apr. 16, 1991 |
| 5005541 |
Hydraulic valve lifter |
Apr. 9, 1991 |
| 4802448 |
Cup tappet with hydraulic play compensation device |
Feb. 7, 1989 |
| 4796573 |
Hydraulic engine valve lifter assembly |
Jan. 10, 1989 |
| 4782799 |
Self-adjusting hydraulic valve tappet |
Nov. 8, 1988 |
| 4762100 |
Inverted bucket tappet with improved seal and valve stem pad |
Aug. 9, 1988 |
| 4662324 |
Oleodynamic valve, particularly for a hydraulic tappet |
May. 5, 1987 |
| 4530320 |
Self adjusting hydraulic tappet for heat engines |
Jul. 23, 1985 |
| 4475490 |
Hydraulic valve lifter |
Oct. 9, 1984 |
| 4463713 |
Hydraulic tappet with automatic taking up of the clearance for endothermic engines |
Aug. 7, 1984 |
| 4437439 |
Valve tappet |
Mar. 20, 1984 |
| 4424774 |
Self adjusting hydraulic tappet for heat engines |
Jan. 10, 1984 |
| 4279226 |
Hydraulic tappet for an internal combustion engine having an overhead camshaft |
Jul. 21, 1981 |
| 4098240 |
Valve gear and lash adjustment means for same |
Jul. 4, 1978 |
| 4054109 |
Engine with variable valve overlap |
Oct. 18, 1977 |
| 4020806 |
Hydraulic valve lifter for internal combustion engine |
May. 3, 1977 |
| 3967602 |
Hydraulic valve lifter for reciprocating internal combustion engines |
Jul. 6, 1976 |
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