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Class Information
Number: 123/443
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Alternate or simultaneous lean-rich
Description: Subject matter in which the charge-forming device alternately or simultaneously supplies rich mixture to some of the engine cylinders and lean mixture to the remaining engine cylinders.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7509205 |
Speed control system for a vehicle |
Mar. 24, 2009 |
| 7503166 |
Gasoline internal combustion engine with dynamic combustion mode allocation |
Mar. 17, 2009 |
| 7367308 |
Method for load transient control between lean and stoichiometric combustion modes of direct-injection engines with controlled auto-ignition combustion |
May. 6, 2008 |
| 7347179 |
Method for operating an internal combustion engine |
Mar. 25, 2008 |
| 7320309 |
Method and device for controlling an internal combustion engine |
Jan. 22, 2008 |
| 7249589 |
Hybrid vehicle and method for controlling hybrid vehicle |
Jul. 31, 2007 |
| 7240480 |
Dual Combustion Mode Engine |
Jul. 10, 2007 |
| 7195001 |
Fuel injector activity verification |
Mar. 27, 2007 |
| 7159385 |
Apparatus for and method of detecting deterioration of catalyst in internal combustion engine |
Jan. 9, 2007 |
| 7152573 |
Method for operating an internal combustion engine |
Dec. 26, 2006 |
| 7146799 |
Computer controlled engine air-fuel ratio adjustment |
Dec. 12, 2006 |
| 7137379 |
Method for rich pulse control of diesel engines |
Nov. 21, 2006 |
| 7111450 |
Method for controlling the temperature of an emission control device |
Sep. 26, 2006 |
| 7073322 |
System for emission device control with cylinder deactivation |
Jul. 11, 2006 |
| 7069910 |
Overall scheduling of a lean burn engine system |
Jul. 4, 2006 |
| 7069718 |
Engine system and method for injector cut-out operation with improved exhaust heating |
Jul. 4, 2006 |
| 7032572 |
Method for controlling an engine to obtain rapid catalyst heating |
Apr. 25, 2006 |
| 7013862 |
Method for operating an internal combustion engine |
Mar. 21, 2006 |
| 7003945 |
Exhaust emission control device for internal combustion engine |
Feb. 28, 2006 |
| 6990951 |
Torque control strategy for a diesel engine during lean-rich modulation using independent fuel injection maps |
Jan. 31, 2006 |
| 6931837 |
Control strategy for lean-to-rich transitions in an internal combustion engine |
Aug. 23, 2005 |
| 6886329 |
Exhaust emission control apparatus for internal combustion engine |
May. 3, 2005 |
| 6874490 |
Method and system of adaptive learning for engine exhaust gas sensors |
Apr. 5, 2005 |
| 6868667 |
Method for rapid catalyst heating |
Mar. 22, 2005 |
| 6866023 |
Lean burn engine control system |
Mar. 15, 2005 |
| 6857421 |
Method for operating a diesel engine, and diesel engine |
Feb. 22, 2005 |
| 6854264 |
Computer controlled engine adjustment based on an exhaust flow |
Feb. 15, 2005 |
| 6823657 |
Regeneration of a NOx storage catalytic converter of an internal combustion engine |
Nov. 30, 2004 |
| 6782869 |
Fuel delivery system and method |
Aug. 31, 2004 |
| 6766641 |
Temperature control via computing device |
Jul. 27, 2004 |
| 6758185 |
Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics |
Jul. 6, 2004 |
| 6745747 |
Method for air-fuel ratio control of a lean burn engine |
Jun. 8, 2004 |
| 6735937 |
Engine air and fuel control |
May. 18, 2004 |
| 6736120 |
Method and system of adaptive learning for engine exhaust gas sensors |
May. 18, 2004 |
| 6725825 |
Method and system for controlling combustion mode in an internal combustion engine |
Apr. 27, 2004 |
| 6659083 |
Method and device for operating an internal combustion engine |
Dec. 9, 2003 |
| 6634170 |
Exhaust emission control system of internal combustion engine |
Oct. 21, 2003 |
| 6609492 |
Operating method for a dual throttle split SIDI engine |
Aug. 26, 2003 |
| 6604504 |
Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine |
Aug. 12, 2003 |
| 6568177 |
Method for rapid catalyst heating |
May. 27, 2003 |
| 6561166 |
Purge fuel canister measurement method and system |
May. 13, 2003 |
| 6550240 |
Lean engine control with multiple catalysts |
Apr. 22, 2003 |
| 6510835 |
Device and method for controlling engines |
Jan. 28, 2003 |
| 6499474 |
Air/fuel ratio control apparatus for internal combustion engine |
Dec. 31, 2002 |
| 6496767 |
Constant groundspeed autoshift method and apparatus for maximizing fuel economy |
Dec. 17, 2002 |
| 6390054 |
Engine control strategy for a hybrid HCCI engine |
May. 21, 2002 |
| 6360713 |
Mode transition control scheme for internal combustion engines using unequal fueling |
Mar. 26, 2002 |
| 6357419 |
Method and device for operating and monitoring an internal combustion engine |
Mar. 19, 2002 |
| 6349710 |
Engine combustion controller |
Feb. 26, 2002 |
| 6336320 |
Exhaust gas purification device for an internal combustion engine |
Jan. 8, 2002 |
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