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Class Information
Number: 123/190.4
Name: Internal-combustion engines > Valve > Rotary > Double function type
Description: Apparatus wherein a single rotary valve handles both intake and exhaust gases for cylinder.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7240654 |
Engine valve assembly |
Jul. 10, 2007 |
| 6257191 |
Rotary valve system |
Jul. 10, 2001 |
| 6205960 |
Rotary and reciprocating internal combustion engine and compressor |
Mar. 27, 2001 |
| 6006714 |
Self-sealing rotary aspiration system for internal combustion engines |
Dec. 28, 1999 |
| 5941206 |
Rotary valve for internal combustion engine |
Aug. 24, 1999 |
| 5875744 |
Rotary and reciprocating internal combustion engine and compressor |
Mar. 2, 1999 |
| 5839399 |
Cartridge-type rotary valve |
Nov. 24, 1998 |
| 5673663 |
Non-valve engine device and method of controlling the same |
Oct. 7, 1997 |
| 5529037 |
Lubrication system for rotary valve |
Jun. 25, 1996 |
| 5490485 |
Rotary valve for internal combustion engine |
Feb. 13, 1996 |
| 5474036 |
Internal combustion engine with rotary valve assembly having variable intake valve timing |
Dec. 12, 1995 |
| 5392743 |
Variable duration rotary valve |
Feb. 28, 1995 |
| 5255645 |
Rotary valve for an internal combustion engine |
Oct. 26, 1993 |
| 5197434 |
I.C. engines |
Mar. 30, 1993 |
| 5154147 |
Rotary valve |
Oct. 13, 1992 |
| 5127376 |
Rotary valve shaft |
Jul. 7, 1992 |
| 5111783 |
Rotary valve system for internal combustion engines |
May. 12, 1992 |
| 5095870 |
Rotary valve four-cycle engine |
Mar. 17, 1992 |
| 5081966 |
Internal combustion engine with rotary valve assembly |
Jan. 21, 1992 |
| 5000136 |
Internal combustion engine with rotary valve assembly |
Mar. 19, 1991 |
| 4953527 |
Spherical rotary valve assembly for an internal combustion engine |
Sep. 4, 1990 |
| 4612886 |
Internal combustion engine with rotary combustion chamber |
Sep. 23, 1986 |
| 4592312 |
High efficiency performance kinetic occlude system with rotary valve |
Jun. 3, 1986 |
| 4572116 |
Internal combustion engine |
Feb. 25, 1986 |
| 4517937 |
Internal combustion engine |
May. 21, 1985 |
| 4481917 |
Rotary valve for internal-combustion engine |
Nov. 13, 1984 |
| 4342294 |
Rotary engine valve with improved seals and lubrication system |
Aug. 3, 1982 |
| 4201174 |
Rotary valve system for motors and the like having improved sealing means |
May. 6, 1980 |
| 4160436 |
Rotary valves |
Jul. 10, 1979 |
| 4119077 |
Rotary valve system for motors and the like having improved sealing means |
Oct. 10, 1978 |
| 4010727 |
Internal combustion engine |
Mar. 8, 1977 |
| 3989025 |
Rotary valve |
Nov. 2, 1976 |
| 3948227 |
Stratified charge engine |
Apr. 6, 1976 |
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