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Class Information
Number: 123/684
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Including exhaust gas condition responsive means > Combined with engine condition responsive means > Engine load responsive > Pressure downstream of throttle valve responsive
Description: Subject matter wherein the control means is responsive to means for detecting the pressure of fluid downstream from means for varying the cross-sectional area of a mixture forming conduit.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8487579 Determination of the position of a component Jul. 16, 2013
8095293 Method and device for operating an internal combustion engine Jan. 10, 2012
7861697 Carbureted natural gas turbo charged engine Jan. 4, 2011
7404392 Method and device for controlling an internal combustion engine Jul. 29, 2008
7357127 Method for determining the air mass in a cylinder Apr. 15, 2008
7273046 Air-fuel ratio controller for internal combustion engine and diagnosis apparatus for intake sensors Sep. 25, 2007
7140356 Engine throttle opening degree area estimation method, as well as engine acceleration detection method and device and engine fuel injection control method and device using the estimation metho Nov. 28, 2006
7051726 Control device for internal combustion engine May. 30, 2006
7051709 Control device for internal combustion engine May. 30, 2006
7031824 Multivariable actuator control for an internal combustion engine Apr. 18, 2006
7021292 Pressure sensor device of internal combustion engine Apr. 4, 2006
6868327 Device for estimating an amount of intake air of an internal combustion engine Mar. 15, 2005
6840237 Method for auto-ignition operation and computer readable storage device Jan. 11, 2005
6837231 Cylinder bank work output balancing based on exhaust gas A/F ratio Jan. 4, 2005
6615812 Method and arrangement for operating an internal combustion engine Sep. 9, 2003
6460514 Method and apparatus for controlling fuel injection quantity for an internal combustion engine equipped with a turbocharger Oct. 8, 2002
6457467 Internal combustion engine with air/fuel ratio control Oct. 1, 2002
6453897 Intake air pressure sensor for engine Sep. 24, 2002
6397830 Air-fuel ratio control system and method using control model of engine Jun. 4, 2002
6286492 Fuel injection control Sep. 11, 2001
6148809 Oxygen sensor controlled continuous flow fuel system Nov. 21, 2000
6041758 Fuel injection amount controller for engines Mar. 28, 2000
6041765 Internal combustion engine with air/fuel ratio control Mar. 28, 2000
5904131 Internal combustion engine with air/fuel ratio control May. 18, 1999
5813389 Cylinder-by-cylinder air-fuel ratio-estimating system for internal combustion engines Sep. 29, 1998
5785037 Fuel metering control system for internal combustion engine Jul. 28, 1998
5720265 Fuel metering control system for internal combustion engine Feb. 24, 1998
5709198 Oxygen concentration detecting apparatus Jan. 20, 1998
5694910 Apparatus for controlling air-fuel ratio of internal combustion engine Dec. 9, 1997
5692485 Feedback control system using adaptive control Dec. 2, 1997
5606960 Method for controlling valve operating characteristic and air-fuel ratio in internal combustion engine Mar. 4, 1997
5588416 Fuel control system for gaseous fueled engine Dec. 31, 1996
5586544 Fuel injection amount control system for internal combustion engines and intake passage wall temperature-estimating device used therein Dec. 24, 1996
5551411 Dilution controlled lean burn system Sep. 3, 1996
5507269 Air fuel ratio control apparatus for internal combustion engines Apr. 16, 1996
5483935 Control system for internal combustion engines Jan. 16, 1996
5483937 Actuator for engine fuel injector system Jan. 16, 1996
5337719 Engine control system and method Aug. 16, 1994
5335643 Electronic injection fuel delivery control system Aug. 9, 1994
5190020 Automatic control system for IC engine fuel injection Mar. 2, 1993
5143040 Evaporative fuel control apparatus of internal combustion engine Sep. 1, 1992
5072712 Method and apparatus for setting a tank venting valve Dec. 17, 1991
5067465 Lean burn internal combustion engine Nov. 26, 1991
4993393 Air-fuel ratio feedback control method for internal combustion engines Feb. 19, 1991
4982714 Air-fuel control apparatus for an internal combustion engine Jan. 8, 1991
4941448 Fuel supply control system for internal combustion engine with improved response characteristics to variation of induction air pressure Jul. 17, 1990
4936278 Air-fuel ratio control method for internal combustion engines Jun. 26, 1990
4911130 Air-fuel ratio controller of internal combustion engine Mar. 27, 1990
4858581 Air-fuel ratio feedback control method for internal combustion engines Aug. 22, 1989
4766871 Process and system of electronic injection with regulation by probe .lambda. for internal combustion engine Aug. 30, 1988

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