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Class Information
Number: 123/190.2
Name: Internal-combustion engines > Valve > Rotary > Single function, (i.e., exhaust and intake by separate tube)
Description: Apparatus wherein the rotary valve moves between individual distinct ducts.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7421995 |
Rotary valve system and engine using the same |
Sep. 9, 2008 |
| 7328674 |
Rotary valve system and engine using the same |
Feb. 12, 2008 |
| 7325520 |
Rotary valve system and engine using the same |
Feb. 5, 2008 |
| 7255082 |
Rotary valve system and engine using the same |
Aug. 14, 2007 |
| 7213547 |
Valve |
May. 8, 2007 |
| 6976464 |
Semi-rotating valve assembly for use with an internal combustion engine |
Dec. 20, 2005 |
| 6779504 |
Spherical rotary intake valve for spherical rotary valve engine assembly |
Aug. 24, 2004 |
| 6755171 |
Twin rotary valves for a four stroke internal combustion engine |
Jun. 29, 2004 |
| 6691664 |
Direct port rotary valve mechanism with variable timing for internal combustion engines |
Feb. 17, 2004 |
| 6651605 |
Rotary valve for piston engine |
Nov. 25, 2003 |
| 6595177 |
Rotary sleeve port for an internal combustion engine |
Jul. 22, 2003 |
| 6578538 |
Rotary valve for piston engine |
Jun. 17, 2003 |
| 6443116 |
Valve device for an internal combustion engine |
Sep. 3, 2002 |
| 6443110 |
Rotary valve head system for multi-cylinder internal combustion engines |
Sep. 3, 2002 |
| 6390048 |
Valve apparatus for internal combustion engine |
May. 21, 2002 |
| 6378481 |
Four-stroke internal combustion engine with a rotary-spool valve |
Apr. 30, 2002 |
| 6308676 |
Cooling system for rotary valve engine |
Oct. 30, 2001 |
| 5906180 |
Rotary valve assembly for an internal combustion engine |
May. 25, 1999 |
| 5724926 |
Rotary valve assembly for an internal combustion engine |
Mar. 10, 1998 |
| 5711265 |
Rotary valve drive mechanism |
Jan. 27, 1998 |
| 5690069 |
Internal combustion engine having rotary distribution valves |
Nov. 25, 1997 |
| 5655494 |
Variable roller valve system for internal combustion engine |
Aug. 12, 1997 |
| 5642699 |
Rotary valve system |
Jul. 1, 1997 |
| 5623901 |
Time twister cylinder head for use in internal combustion engines |
Apr. 29, 1997 |
| 5579732 |
Electromechanical valve system |
Dec. 3, 1996 |
| 5579730 |
Rotary valve head assembly and related drive system for internal combustion engines |
Dec. 3, 1996 |
| 5572967 |
Variable roller valve system for internal combustion engine |
Nov. 12, 1996 |
| 5503124 |
Rotary valve with seal supporting tongue |
Apr. 2, 1996 |
| 5437252 |
Rotary plug |
Aug. 1, 1995 |
| 5431130 |
Internal combustion engine with stroke specialized cylinders |
Jul. 11, 1995 |
| 5417188 |
Double effect distribution sequential valve shaft assembly |
May. 23, 1995 |
| 5410996 |
Rotary valve assembly used with reciprocating engines |
May. 2, 1995 |
| 5372104 |
Rotary valve arrangement |
Dec. 13, 1994 |
| 5361739 |
Spherical rotary valve assembly for use in a rotary valve internal combustion engine |
Nov. 8, 1994 |
| 5359855 |
V-block two-stroke internal combustion engine |
Nov. 1, 1994 |
| 5309876 |
Automatic variator of valve overlap and valve section |
May. 10, 1994 |
| 5309871 |
Rotating exhaust valve |
May. 10, 1994 |
| 5287701 |
Autoignition two-stroke internal combustion engine |
Feb. 22, 1994 |
| 5273004 |
Two-stroke engine with rotary valves and uses of such an engine |
Dec. 28, 1993 |
| 5249553 |
Rotary valve shaft indent system |
Oct. 5, 1993 |
| 5205251 |
Rotary valve for internal combustion engine |
Apr. 27, 1993 |
| 5152259 |
Cylinder head for internal combustion engine |
Oct. 6, 1992 |
| 5127376 |
Rotary valve shaft |
Jul. 7, 1992 |
| 5109814 |
Spherical rotary valve |
May. 5, 1992 |
| 5105784 |
Rotary valve and system for duration and phase control |
Apr. 21, 1992 |
| 5003942 |
Rotary vaned valves |
Apr. 2, 1991 |
| 5000131 |
Exhaust port control valve for two stroke engine |
Mar. 19, 1991 |
| 4995354 |
Two-cycle engine |
Feb. 26, 1991 |
| 4987864 |
Two cycle engine with valved pressure scavenging |
Jan. 29, 1991 |
| 4976227 |
Internal combustion engine intake and exhaust valve control apparatus |
Dec. 11, 1990 |
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