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Class Information
Number: 123/188.2
Name: Internal-combustion engines > Valve > Reciprocating valve > Poppet
Description: Apparatus wherein the valve head has a flat disk shape on the end of a vertically set stem.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7398748 |
Poppet valve and engine using same |
Jul. 15, 2008 |
| 7311068 |
Poppet valve and engine using same |
Dec. 25, 2007 |
| 7296545 |
Coaxial poppet valve |
Nov. 20, 2007 |
| 7134410 |
Detachable connection for coupling a gas exchange valve of an internal combustion engine to an actuator |
Nov. 14, 2006 |
| 6971344 |
Internal combustion engine |
Dec. 6, 2005 |
| 6830025 |
Dual spring valve stem seal module |
Dec. 14, 2004 |
| 6796281 |
Internal combustion engine with valve train |
Sep. 28, 2004 |
| 6675757 |
Intake valve for an internal combustion machine |
Jan. 13, 2004 |
| 6553956 |
Composite lightweight valve for internal combustion engines |
Apr. 29, 2003 |
| 6539909 |
Retractable seat valve and method for selective gas flow control in a combustion chamber |
Apr. 1, 2003 |
| 6519847 |
Surface treatment of prefinished valve seat inserts |
Feb. 18, 2003 |
| 6298817 |
Exhaust valve for an internal combustion engine |
Oct. 9, 2001 |
| 6263849 |
Ultra light engine valve and method of welding cap thereto |
Jul. 24, 2001 |
| 6244234 |
Exhaust valve for an internal combustion engine |
Jun. 12, 2001 |
| 6237549 |
Vented valve mechanism for internal combustion engines |
May. 29, 2001 |
| 6234142 |
Shrouded engine valve |
May. 22, 2001 |
| 6138616 |
Device and method in combustion engines |
Oct. 31, 2000 |
| 5738054 |
Engine valve having adjustable lift |
Apr. 14, 1998 |
| 5701930 |
Modular valve assembly |
Dec. 30, 1997 |
| 5615644 |
Valve arrangement in an internal combustion engine |
Apr. 1, 1997 |
| 5357914 |
Vented valve mechanism for internal combustion engines |
Oct. 25, 1994 |
| 5168843 |
Poppet valve for an internal combustion engine |
Dec. 8, 1992 |
| 5094200 |
Lightweight composite engine valve |
Mar. 10, 1992 |
| 5081965 |
Intake valve for internal combustion engine |
Jan. 21, 1992 |
| 4999911 |
Method of manufacturing an automobile valve for use in rebuilding engines |
Mar. 19, 1991 |
| 4872430 |
Valve system for reciprocating engines |
Oct. 10, 1989 |
| 4834036 |
Composite valve for reciprocating engines and method for manufacturing the same |
May. 30, 1989 |
| 4790272 |
Non-circular poppet valves for internal combustion engine cylinder assemblies |
Dec. 13, 1988 |
| 4779584 |
Internal combustion engine intake valve |
Oct. 25, 1988 |
| 4547229 |
Solution heat treating of engine poppet valves |
Oct. 15, 1985 |
| 4493296 |
Three cycle engine with varying combustion chamber volume |
Jan. 15, 1985 |
| 4475494 |
Valve for an internal combustion engine |
Oct. 9, 1984 |
| 4459949 |
Liquid metal cooled internal combustion engine valves with getter |
Jul. 17, 1984 |
| 4450798 |
Engine intake valve with heat pipe |
May. 29, 1984 |
| 4406046 |
Process for the production of a sodium-filled valve |
Sep. 27, 1983 |
| 4351292 |
Poppet valve shield |
Sep. 28, 1982 |
| 4300492 |
Thermal barrier valve |
Nov. 17, 1981 |
| 4190941 |
Method of making cooled valves for internal combustion engines and valves obtained thereby |
Mar. 4, 1980 |
| 4187807 |
Cooled engine valve with improved heat transfer |
Feb. 12, 1980 |
| 4006592 |
Valve arrangements for reciprocating piston machines |
Feb. 8, 1977 |
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