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Class Information
Number: 123/344
Name: Internal-combustion engines > Engine speed regulator > Charge proportion varying (e.g., the fuel-air ratio is varied)
Description: Subject matter including means for regulating the speed of an engine by automatically varying the relative amount of air and fuel forming the combustible charge.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7493889 |
Method for controlling the composition of a fuel/air mixture for an internal combustion engine |
Feb. 24, 2009 |
| 7210454 |
Internal combustion engine capable of selectively resting certain cylinders during low-load operation, and method of using same |
May. 1, 2007 |
| 7198030 |
Internal combustion engine |
Apr. 3, 2007 |
| 6945221 |
Method and device for operating a drive unit having an internal combustion engine |
Sep. 20, 2005 |
| 6932052 |
Air/fuel ratio control system for gaseous fueled engines |
Aug. 23, 2005 |
| 6932053 |
Control device of internal combustion engine |
Aug. 23, 2005 |
| 6907858 |
Engine fuel injection control system |
Jun. 21, 2005 |
| 6904899 |
Air-fuel ratio controller for internal-combustion engine |
Jun. 14, 2005 |
| 6866019 |
Breather-operated priming system for small internal combustion engines |
Mar. 15, 2005 |
| 6840214 |
Air-fuel ratio control apparatus for internal combustion engine |
Jan. 11, 2005 |
| 6837232 |
Air-fuel ratio control apparatus for internal combustion engine |
Jan. 4, 2005 |
| 6786196 |
Fuel injection quantity control device |
Sep. 7, 2004 |
| 6745747 |
Method for air-fuel ratio control of a lean burn engine |
Jun. 8, 2004 |
| 5992381 |
Process for determining the optimal richness of a fuel-air mixture supplied to an internal combustion engine and corresponding device |
Nov. 30, 1999 |
| 5715789 |
Method for controlling engine for model and device therefor |
Feb. 10, 1998 |
| 5660157 |
Output torque control apparatus and method for an internal combustion engine |
Aug. 26, 1997 |
| 5615655 |
Control system for internal combustion engines |
Apr. 1, 1997 |
| 5335744 |
Knock control system for automobile internal combustion engine |
Aug. 9, 1994 |
| 5284113 |
Arrangement in an i. c. engine |
Feb. 8, 1994 |
| 4864991 |
Method and apparatus for controlling air to gas ratio of gaseous fueled engines |
Sep. 12, 1989 |
| 4862367 |
Automatic speed control apparatus for controlling vehicle speed at set speed |
Aug. 29, 1989 |
| 4619232 |
Interactive idle speed control with a direct fuel control |
Oct. 28, 1986 |
| 4612889 |
Idle control method for an internal combustion engine |
Sep. 23, 1986 |
| 4535736 |
Method and apparatus for controlling air-fuel ratio in internal combustion engine |
Aug. 20, 1985 |
| 4532903 |
Binary and proportional control for a feedback carburetor |
Aug. 6, 1985 |
| 4512304 |
Method and apparatus for controlling air to gas ratio in gas engines |
Apr. 23, 1985 |
| 4499872 |
Ultra lean burn carburetted adiabatic engine |
Feb. 19, 1985 |
| 4475504 |
Method and apparatus for controlling the idling speed of an internal combustion engine |
Oct. 9, 1984 |
| 4455983 |
Method and arrangement for operation of an internal combustion engine of a vehicle |
Jun. 26, 1984 |
| 4444169 |
Air-fuel ratio controlling device for internal combustion engines |
Apr. 24, 1984 |
| 4376427 |
Engine air/fuel ratio control system with both normal idling and idle up idling capability |
Mar. 15, 1983 |
| 4342298 |
Engine and transmission control apparatus |
Aug. 3, 1982 |
| 4335689 |
Electronic type air/fuel ratio control system |
Jun. 22, 1982 |
| 4184461 |
Acceleration enrichment for closed loop control systems |
Jan. 22, 1980 |
| 4142612 |
Servo motor with differential pressure controlled and actuated release valve |
Mar. 6, 1979 |
| 4125095 |
Carburetors for internal combustion engines |
Nov. 14, 1978 |
| 4077371 |
Fuel saving system for automobiles |
Mar. 7, 1978 |
| 4047507 |
Fuel economizing system |
Sep. 13, 1977 |
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