US Patent No: 6,023,929

Number of patents in Portfolio can not be more than 2000

Engine with cylinder deactivation

Stats

ATTORNEY / AGENT: (SPONSORED)
 

Importance

Loading Importance Indicators... loading....

Abstract

A multi-cylinder spark ignition internal combustion engine is described having two banks of cylinders 10a, 10b. One bank of cylinders may be selectively disabled by cutting off its fuel supply while continuing to receive air. The exhaust system includes an NO.sub.x trap 20 to store NO.sub.x gases while the exhaust gases contain excess air. During part load operation, the engine is run with one bank of cylinders disabled most of the time during which NO.sub.x gases are stored in the NO.sub.x trap 20. In order to permit the trap 20 to be regenerated or purged periodically, both bank are fired at is the same time for short intervals to supply a stoichiometric or reducing mixture to the exhaust system.

Loading the Abstract Image... loading....

First Claim

Related Publications

Loading Related Publications... loading....

Patent Owner(s)

Patent OwnerAddressTotal Patents
FORD GLOBAL TECHNOLOGIES, INC.DEARBORN, MI3266

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ma, Thomas Tsoi-Hei Essex, GB 17 246

Cited Art

Patent Info (Count) # Cites Year
 
BAYERISCHE MOTOREN WERKE AKTIENGESELLSCHAFT (1)
5,647,207 Internal-combustion engine including a cylinder shut-off and exhaust gas catalysts 12 1995
 
NISSAN MOTOR CO., LTD. (1)
4,303,053 Split mode internal combustion engine with improved NO.sub.x reduction means 12 1980
 
TOYO KOGYO CO., LTD. (1)
4,345,432 Exhaust gas purifying system for internal combustion engine 8 1980
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (1)
5,562,086 Control device of a varable cylinder engine 50 1995

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
FORD GLOBAL TECHNOLOGIES, LLC (87)
6,843,051 Method and apparatus for controlling lean-burn engine to purge trap of stored NOx 0 2000
6,810,659 Method for determining emission control system operability 2 2000
6,708,483 Method and apparatus for controlling lean-burn engine based upon predicted performance impact 3 2000
6,629,453 Method and apparatus for measuring the performance of an emissions control device 3 2000
6,594,989 Method and apparatus for enhancing fuel economy of a lean burn internal combustion engine 30 2000
6,691,507 Closed-loop temperature control for an emission control device 10 2000
6,860,100 Degradation detection method for an engine having a NOx sensor 2 2001
6,694,244 Method for quantifying oxygen stored in a vehicle emission control device 5 2001
6,691,020 Method and system for optimizing purge of exhaust gas constituent stored in an emission control device 2 2001
6,650,991 Closed-loop method and system for purging a vehicle emission control 2 2001
6,615,577 Method and system for controlling a regeneration cycle of an emission control device 20 2001
6,604,504 Method and system for transitioning between lean and stoichiometric operation of a lean-burn engine 6 2001
6,553,754 Method and system for controlling an emission control device based on depletion of device storage capacity 13 2001
6,990,799 Method of determining emission control system operability 7 2001
6,739,123 Temperature management of catalyst system for a variable displacement engine 18 2002
6,681,563 Exhaust gas oxygen sensor temperature control for a variable displacement engine 4 2002
7,168,239 Method and system for rapid heating of an emission control device 8 2002
7,111,450 Method for controlling the temperature of an emission control device 11 2002
7,032,572 Method for controlling an engine to obtain rapid catalyst heating 5 2002
6,925,982 Overall scheduling of a lean burn engine system 1 2002
6,868,827 Method for controlling transitions between operating modes of an engine for rapid heating of an emission control device 20 2002
6,769,398 Idle speed control for lean burn engine with variable-displacement-like characteristic 27 2002
6,758,185 Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics 25 2002
6,745,747 Method for air-fuel ratio control of a lean burn engine 19 2002
6,735,938 Method to control transitions between modes of operation of an engine 44 2002
6,736,120 Method and system of adaptive learning for engine exhaust gas sensors 10 2002
6,736,121 Method for air-fuel ratio sensor diagnosis 48 2002
6,725,830 Method for split ignition timing for idle speed control of an engine 8 2002
6,715,462 Method to control fuel vapor purging 22 2002
6,568,177 Method for rapid catalyst heating 84 2002
6,868,667 Method for rapid catalyst heating 9 2003
6,871,617 Method of correcting valve timing in engine having electromechanical valve actuation 4 2004
7,367,180 System and method for controlling valve timing of an engine with cylinder deactivation 2 2004
7,159,387 Emission control device 3 2004
7,086,386 Engine system and method accounting for engine misfire 6 2004
7,073,322 System for emission device control with cylinder deactivation 3 2004
7,073,494 System and method for estimating fuel vapor with cylinder deactivation 5 2004
7,069,718 Engine system and method for injector cut-out operation with improved exhaust heating 5 2004
7,044,885 Engine system and method for enabling cylinder deactivation 0 2004
7,028,670 Torque control for engine during cylinder activation or deactivation 6 2004
7,025,039 System and method for controlling valve timing of an engine with cylinder deactivation 7 2004
7,021,046 Engine system and method for efficient emission control device purging 5 2004
7,000,602 Engine system and fuel vapor purging system with cylinder deactivation 7 2004
6,978,204 Engine system and method with cylinder deactivation 16 2004
6,820,597 Engine system and dual fuel vapor purging system with cylinder deactivation 24 2004
7,559,309 Method to start electromechanical valves on an internal combustion engine 4 2004
7,555,896 Cylinder deactivation for an internal combustion engine 2 2004
7,383,820 Electromechanical valve timing during a start 6 2004
7,194,993 Starting an engine with valves that may be deactivated 7 2004
7,165,391 Method to reduce engine emissions for an engine capable of multi-stroke operation and having a catalyst 17 2004
7,140,355 Valve control to reduce modal frequencies that may cause vibration 8 2004
7,128,043 Electromechanically actuated valve control based on a vehicle electrical system 18 2004
7,128,687 Electromechanically actuated valve control for an internal combustion engine 16 2004
7,107,946 Electromechanically actuated valve control for an internal combustion engine 15 2004
7,107,947 Multi-stroke cylinder operation in an internal combustion engine 14 2004
7,079,935 Valve control for an engine with electromechanically actuated valves 18 2004
7,072,758 Method of torque control for an engine with valves that may be deactivated 18 2004
7,066,121 Cylinder and valve mode control for an engine with valves that may be deactivated 16 2004
7,063,062 Valve selection for an engine operating in a multi-stroke cylinder mode 19 2004
7,055,483 Quick starting engine with electromechanical valves 20 2004
7,032,545 Multi-stroke cylinder operation in an internal combustion engine 14 2004
7,032,581 Engine air-fuel control for an engine with valves that may be deactivated 18 2004
7,028,650 Electromechanical valve operating conditions by control method 18 2004
7,031,821 Electromagnetic valve control in an internal combustion engine with an asymmetric exhaust system design 15 2004
7,021,289 Reducing engine emissions on an engine with electromechanical valves 17 2004
7,017,539 Engine breathing in an engine with mechanical and electromechanical valves 22 2004
6,938,598 Starting an engine with electromechanical valves 45 2004
6,874,490 Method and system of adaptive learning for engine exhaust gas sensors 14 2004
7,363,915 Method to control transitions between modes of operation of an engine 2 2004
6,955,155 Method for controlling transitions between operating modes of an engine for rapid heating of an emission control device 6 2004
7,059,112 Degradation detection method for an engine having a NOx sensor 10 2004
6,938,410 Temperature management of catalyst system for a variable displacement engine 2 2004
7,047,932 Method to improve fuel economy in lean burn engines with variable-displacement-like characteristics 2 2004
7,069,903 Idle speed control for lean burn engine with variable-displacement-like characteristic 8 2004
7,249,583 System for controlling valve timing of an engine with cylinder deactivation 13 2005
7,234,435 Electrically actuated valve deactivation in response to vehicle electrical system conditions 7 2005
7,481,039 Engine system and method for efficient emission control device purging 4 2006
7,317,984 Engine shut-down for engine having adjustable valve timing 5 2006
7,497,074 Emission control device 1 2006
7,320,300 Multi-stroke cylinder operation in an internal combustion engine 7 2006
7,743,747 Electrically actuated valve deactivation in response to vehicle electrical system conditions 2 2007
7,647,766 System and method for controlling valve timing of an engine with cylinder deactivation 1 2007
7,401,606 Multi-stroke cylinder operation in an internal combustion engine 4 2007
7,549,406 Engine shut-down for engine having adjustable valve timing 0 2008
7,532,972 Method of torque control for an engine with valves that may be deactivated 4 2008
7,717,071 Electromechanical valve timing during a start 3 2008
7,941,994 Emission control device 1 2008
 
FORD GLOBAL TECHNOLOGIES, INC. (27)
6,164,065 After treatment system for a variable displacement engine 39 1999
6,539,704 Method for improved vehicle performance 4 2000
6,499,293 Method and system for reducing NOx tailpipe emissions of a lean-burn internal combustion engine 9 2000
6,487,849 Method and apparatus for controlling lean-burn engine based upon predicted performance impact and trap efficiency 13 2000
6,487,850 Method for improved engine control 9 2000
6,481,199 Control for improved vehicle performance 10 2000
6,477,832 Method for improved performance of a vehicle having an internal combustion engine 13 2000
6,438,944 Method and apparatus for optimizing purge fuel for purging emissions control device 9 2000
6,434,930 Method and apparatus for controlling lean operation of an internal combustion engine 2 2000
6,427,437 Method for improved performance of an engine emission control system 6 2000
6,374,597 Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent 13 2000
6,360,529 Method and apparatus for enabling lean engine operation upon engine start-up 4 2000
6,360,530 Method and apparatus for measuring lean-burn engine emissions 7 2000
6,327,847 Method for improved performance of a vehicle 13 2000
6,308,515 Method and apparatus for accessing ability of lean NOx trap to store exhaust gas constituent 15 2000
6,308,697 Method for improved air-fuel ratio control in engines 10 2000
6,415,601 Temperature management of catalyst system for a variable displacement engine 60 2000
6,389,806 Variable displacement engine control for fast catalyst light-off 72 2000
6,381,953 Exhaust gas oxygen sensor temperature control for a variable displacement engine 7 2000
6,546,718 Method and system for reducing vehicle emissions using a sensor downstream of an emission control device 5 2001
6,539,706 Method and system for preconditioning an emission control device for operation about stoichiometry 1 2001
6,502,387 Method and system for controlling storage and release of exhaust gas constituents in an emission control device 11 2001
6,490,860 Open-loop method and system for controlling the storage and release cycles of an emission control device 7 2001
6,487,853 Method and system for reducing lean-burn vehicle emissions using a downstream reductant sensor 7 2001
6,467,259 Method and system for operating dual-exhaust engine 44 2001
6,463,733 Method and system for optimizing open-loop fill and purge times for an emission control device 31 2001
6,453,666 Method and system for reducing vehicle tailpipe emissions when operating lean 3 2001
 
GM GLOBAL TECHNOLOGY OPERATIONS LLC (6)
6,293,092 NOx adsorber system regeneration fuel control 8 1999
6,422,003 NOX catalyst exhaust feedstream control system 11 2000
6,922,986 Catalytic converter early light off using cylinder deactivation 3 2001
6,732,506 Cylinder deactivation system and NOx trap regeneration 4 2002
6,857,264 Exhaust emission aftertreatment 20 2002
6,907,725 Method for reducing engine exhaust emissions 26 2003
 
TOYOTA JIDOSHA KABUSHIKI KAISHA (5)
6,233,925 Exhaust discharge control device for internal combustion engine 37 1999
6,481,200 Catalyst warming apparatus of internal combustion engine 1 2000
6,634,166 In-cylinder injection type spark-ignition internal combustion engine and method 6 2001
6,732,505 In-cylinder injection type spark-ignition internal combustion engine and method 1 2002
7,890,244 Internal combustion engine 0 2006
 
DELPHI TECHNOLOGIES, INC. (4)
6,904,752 Engine cylinder deactivation to improve the performance of exhaust emission control systems 17 2002
6,786,191 Engine cylinder deactivation to improve vehicle interior heating and defrosting 5 2002
6,931,839 Apparatus and method for reduced cold start emissions 19 2003
7,861,517 Method and system for controlling catalyst temperature 3 2005
 
FLEETGUARD, INC. (3)
6,820,414 Adsorber aftertreatment system having downstream soot filter 18 2002
6,745,560 Adsorber aftertreatment system having dual soot filters 20 2002
7,117,667 NOx adsorber aftertreatment system for internal combustion engines 10 2003
 
CATERPILLAR INC. (2)
7,552,583 Exhaust purification with on-board ammonia production 2 2004
7,490,462 Turbocharged exhaust gas recirculation system 10 2006
 
ILLINOIS VALLEY HOLDING COMPANY (2)
6,989,045 Apparatus and method for filtering particulate and reducing NOx emissions 16 2002
7,269,942 Wall flow particulate trap system 0 2004
 
INTERNATIONAL TRUCK INTELLECTUAL PROPERTY COMPANY, LLC (2)
6,922,997 Engine based kinetic energy recovery system for vehicles 13 2004
7,363,127 Air brake system monitoring for pre-trip inspection 10 2004
 
VOLKSWAGEN AG (2)
6,684,632 Arrangement and method for igniting a combustible gas mixture for the exhaust system of an internal-combustion engine and corresponding exhaust system 0 2001
6,523,342 Method and system for the catalytic aftertreatment of the exhaust gas of an internal-combustion engine 5 2001
 
CUMMINS, INC. (1)
7,854,114 Increasing exhaust temperature for aftertreatment operation 0 2006
 
DENSO CORPORATION (1)
6,560,959 Exhaust gas purification apparatus of internal combustion engine 15 2000
 
DR. ING. H.C.F. PORSCHE AKTIENGESELLSCHAFT (1)
6,134,882 Regulating strategy for an NOx trap 20 1999
 
ENGELHARD CORPORATION (1)
7,055,311 Emission control system for vehicles powered by diesel engines 22 2002
 
GM GLOBAL TECHNOLOGY OPERATIONS, INC. (1)
6,609,492 Operating method for a dual throttle split SIDI engine 3 2002
 
HARLEY-DAVIDSON MOTOR COMPANY GROUP, INC. (1)
7,488,273 Cylinder deactivation for a motorcycle engine 0 2006
 
HONDA MOTOR CO., LTD. (1)
7,188,468 Controller for cylinder cut-off for multi-cylinder internal combustion engine 4 2004
 
INSTITUT FRANCAIS DU PETROLE (1)
8,091,340 Method of controlling the intake of an internal-combustion engine, notably of gasoline or diesel type, and engines using same 0 2006
 
INTEL CORPORATION (1)
6,668,546 Utilization of air-assisted direct injection, cylinder deactivation and camshaft phasing for improved catalytic converter light-off in internal combustion engines 6 2002
 
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI (1)
7,360,356 Exhaust gas purifying apparatus for internal combustion engine 4 2006
 
MITSUBISHI JIDOSHA KOGYO K.K. (A.K.A. MITSUBISHI MOTORS CORPORATION) (1)
6,886,329 Exhaust emission control apparatus for internal combustion engine 1 2003
 
ROBERT BOSCH GMBH (1)
6,530,215 Method and apparatus for processing exhaust gas from an internal combustion engine 8 2001
 
UMICORE AG & CO. KG (1)
8,327,625 Method for regenerating soot filters in the exhaust gas system of a lean mix engine, and exhaust gas system therefor 0 2008
 
YANMAR CO., LTD. (1)
7,784,276 Exhaust gas purifier and method of control therefor 1 2005