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Class Information
Number: 123/188.1
Name: Internal-combustion engines > Valve
Description: Apparatus relating to either (1) the intake, exhaust, or fuel valve of an internal-combustion engine having a stationary opening (i.e., seat) and moving closure (i.e., head) or (2), a component thereof (e.g., a valve-seat), or (3), an adjunct accessory (e.g., supply conduit for valve) solely for use with the supply, exhaust or fuel valve of an internal combustion engine.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7448354 |
Valve apparatus for an internal combustion engine |
Nov. 11, 2008 |
| 7017538 |
Method of producing a powerful and efficient internal combustion four stroke engine using a blower and a single valve cylinder |
Mar. 28, 2006 |
| 6928967 |
Electromagnetic hydraulic valve, in particular a proportional valve for controlling device for adjusting the rotation angle of a camshaft relative to the crankshaft in an internal combustion e |
Aug. 16, 2005 |
| 6915768 |
Variable operating valve apparatus for an internal combustion engine |
Jul. 12, 2005 |
| 6866031 |
Direct injection internal combustion engine |
Mar. 15, 2005 |
| 6837201 |
Apparatus and method for lessening the accumulation of high boiling fraction from fuel in intake valves of combustion engines |
Jan. 4, 2005 |
| 6694932 |
Valve assembly with swinging valve face moving out of the fluid path |
Feb. 24, 2004 |
| 6489043 |
Iron aluminide fuel injector component |
Dec. 3, 2002 |
| 6394128 |
Intake tract negative pressure relief valve for I.C. engine |
May. 28, 2002 |
| 6199531 |
Shutter valve system for internal combustion engines |
Mar. 13, 2001 |
| 5931134 |
Internal combustion engine with improved combustion |
Aug. 3, 1999 |
| 5575628 |
Gas compressor |
Nov. 19, 1996 |
| 5422321 |
Composition and process for making an engine valve |
Jun. 6, 1995 |
| 5291868 |
Single overhead cam multi-valve engine |
Mar. 8, 1994 |
| 5094200 |
Lightweight composite engine valve |
Mar. 10, 1992 |
| 4494489 |
Cylinder head for four-cycle internal combustion engines |
Jan. 22, 1985 |
| 4228770 |
Internal combustion engine fuel supply system |
Oct. 21, 1980 |
| 4218994 |
Fluid intake and exhaust assemblies for positive displacement apparatus |
Aug. 26, 1980 |
| 4182299 |
Engine valve |
Jan. 8, 1980 |
| 4114585 |
Internal-combustion engines |
Sep. 19, 1978 |
| 4108132 |
Internal combustion engine having an improved inlet valve arrangement |
Aug. 22, 1978 |
| 4106466 |
Engine valve with recessed seat and annular groove |
Aug. 15, 1978 |
| 3963016 |
Valve chests |
Jun. 15, 1976 |
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