Patents
Patents for F02D 21 - Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas (5,404)
07/1988
07/12/1988US4756285 Combustion process for internal combustion engine
07/12/1988US4756155 Exhaust particle removing system for an internal combustion engine
06/1988
06/14/1988US4750466 Exhaust gas recirculation method for internal combustion engines for automotive vehicles
06/07/1988CA1237796A1 Engine control method and apparatus
05/1988
05/04/1988CN87106281A Low compression ratio multi-cyclinder diesel engine
04/1988
04/12/1988US4736728 For an internal combustion engine
03/1988
03/30/1988EP0262045A1 Method for correcting the injection time in an internal combustion engine with injection control
03/24/1988WO1988002065A1 Multi-cylinder diesel internal combustion engine with low compression ratio in the cylinders
03/10/1988WO1988001685A1 Exhaust gas recirculation
03/01/1988US4727849 Exhaust gas recirculation control system for an internal combustion engine
03/01/1988US4727848 Device for and method of supplying cases into a combustion space of a self-igniting internal combustion engine
02/1988
02/11/1988WO1988001016A1 Method for reducing nitric oxide emissions in exhaust gases from diesel engines
02/11/1988DE3722970A1 Method and device for the cleaning of a particle filter, especially a soot filter
02/09/1988US4723527 Process for increasing the process temperature of an air compressing internal combustion engine
02/02/1988US4722315 Method for improved internal exhaust gas recirculation in an internal combustion engine
01/1988
01/26/1988US4721089 Adaptive dilution control for IC engine responsive to LPP
01/19/1988US4719894 Exhaust gas reflux apparatus
01/19/1988US4719893 Internal combustion engine with throttle tipout dilution reduction
01/19/1988US4719751 Diesel particulate oxidizer regeneration system
01/14/1988DE3720942A1 Control system for a supercharged internal combustion engine
01/12/1988US4718385 Fuel injection pump for internal combustion engines with exhaust gas recirculation
01/12/1988US4718352 Rescue vehicle with emergency engine actuation
11/1987
11/24/1987US4708316 Variable rate EGR valve with step motor control and method therefor
11/24/1987US4707987 Exhaust system for internal combustion engine
11/10/1987US4705009 Exhaust gas recirculation control system for an engine
10/1987
10/27/1987US4702218 Engine intake system having a pressure wave supercharger
10/20/1987US4700684 Method of controlling reciprocating four-stroke internal combustion engines
10/14/1987EP0240686A1 Fuel injection pump for internal-combustion engines with exhaust gas recirculation
09/1987
09/29/1987US4696270 Combustion process for internal combustion engine
09/22/1987US4694812 Exhaust gas recirculation valve having integral electronic control
09/15/1987US4693225 Exhaust gas recirculation system for automatic transmission vehicle
09/02/1987EP0234511A2 Exhaust gas recirculation control system
09/01/1987US4690120 Exhaust gas recirculation control system
08/1987
08/25/1987US4688535 Apparatus for influencing control quantities of an internal combustion engine
07/1987
07/23/1987DE3601703A1 Exhaust emission control for a diesel engine
06/1987
06/19/1987DE3619696C1 Device for the load-dependent control of an exhaust gas recirculation valve
06/09/1987US4671107 EGR diagnostic system
06/02/1987US4669442 Exhaust gas recirculation apparatus for engine with turbocharger
05/1987
05/19/1987US4665882 Method of controlling an exhaust gas recirculating valve in an internal combustion engine
04/1987
04/22/1987EP0219202A2 EGR Diagnostic method and apparatus
03/1987
03/19/1987DE3533197A1 Mixture control for an internal combustion engine
03/03/1987US4646705 Exhaust gas return control system for an internal combustion engine
02/1987
02/24/1987US4644926 Diesel cycle engines having heat insulated auxiliary combustion chambers
02/10/1987US4641624 Exhaust gas recirculation control method and apparatus for internal combustion engine
02/04/1987EP0210177A1 Method for modifying the operation parameters of internal combustion machines.
02/03/1987US4640257 Engine control with exhaust gas recirculation
01/1987
01/27/1987US4638784 Method of and apparatus for controlling vacuum modulating valve for exhaust gas recirculation control
01/13/1987US4636957 Method for controlling operating state of an internal combustion engine with an overshoot preventing function
12/1986
12/23/1986US4630589 Exhaust gas recirculation method for internal combustion engines
12/02/1986US4625702 Exhaust gas recirculation control device for diesel engine
11/1986
11/25/1986US4624228 Intake system for diesel cycle engines
11/11/1986USRE32286 Apparatus for electronically controlling internal combustion engine
11/05/1986EP0199954A2 An analog duty cycle to BCD converter
10/1986
10/14/1986US4616621 Method of air-fuel ratio control of internal combustion engines of automobiles
09/1986
09/30/1986US4614184 Single solenoid control of sequential multiple actuators
09/30/1986US4614175 Engine exhaust gas recirculation control system
08/1986
08/27/1986EP0192219A2 Method to operate an internal combustion engine
08/26/1986CA1210475A1 Method and apparatus for controlling diesel engine exhaust gas recirculation partly as a function of exhaust particulate level
08/14/1986WO1986004645A1 Method for modifying the operation parameters of internal combustion machines
08/12/1986US4604983 Analog duty cycle to BCD converter
08/05/1986CA1208999A1 Turbo-charged compression ignition engine operable at small compression ratio
07/1986
07/29/1986US4602606 Diesel engine exhaust gas recirculation system with greater atmospheric pressure compensation at low engine load
07/16/1986EP0187649A2 Mixture regulation apparatus for a combustion engine
07/08/1986US4598684 Apparatus for controlling air/fuel ratio for internal combustion engine
07/08/1986CA1207410A1 Diesel engine fuel limiting system
06/1986
06/17/1986US4594993 Device for recirculating exhaust gas in an internal combustion engine
06/11/1986EP0184030A2 A variable rate EGR valve with step motor control and method therefor
06/10/1986US4594667 Digital control system
06/10/1986US4593663 Control apparatus for an internal combustion engine having a carburetor
06/04/1986EP0182826A1 Four-stroke combustion engine with a device for conveying gases from an exhaust gas pipe back into the combustion chamber
05/1986
05/27/1986USRE32163 Error preventing device for an electronic engine control apparatus
05/20/1986USRE32156 Method and apparatus for controlling an internal combustion engine, particularly the starting up of the engine
05/07/1986EP0180332A1 Exhaust system for internal combustion engine
05/06/1986USRE32140 Electronic engine control apparatus
03/1986
03/26/1986EP0175478A2 Engine control method and apparatus
02/1986
02/26/1986EP0172475A2 Method of operation of a Diesel engine, in particular for vehicles with, at part load, active exhaust gas recirculation and an injection pump with variable full load limit stop
01/1986
01/07/1986US4562821 System for controlling the amount of recirculated exhaust gas for a diesel engine
12/1985
12/31/1985US4561408 Motorized flow control valve
12/31/1985US4561389 Engine operation control means for suppressing rough engine operations
12/31/1985US4561253 Method of operating supercharged diesel engine with modified valve lift and bypassed intake air
12/24/1985US4559917 Air intake side secondary air supply system for an internal combustion engine equipped with exhaust gas recirculation system
12/19/1985WO1985005654A1 Four-stroke combustion engine with a device for conveying gases from an exhaust gas pipe back into the combustion chamber
12/10/1985US4558417 Computer based engine control with lower priority interrupt requests generated in selected higher priority interrupt routines
12/10/1985US4557236 Combustion roughness servo control to control fuel/air metering or EGR metering to an internal combustion engine
12/03/1985US4556039 Method and apparatus for adapting and controlling the exhaust gas circulation rate
12/03/1985US4556035 Method and apparatus for detecting the ignition time point of an engine
12/03/1985US4555904 Arrangement of an exhaust-gas return system for an internal-combustion engine having an exhaust-gas turbosupercharger
11/1985
11/19/1985USRE32035 Electromechanical transducer controlling device
11/19/1985US4553518 Air-fuel ratio control for an exhaust gas recirculation engine
11/12/1985US4553208 Engine control event timing employing both crank angle rotation and time measurements
10/1985
10/23/1985EP0158887A2 Diesel particulate oxidizer regeneration system
10/22/1985US4548185 Engine control method and apparatus
10/22/1985US4548184 Apparatus for the load-dependent actuation of an adjusting device of an internal combustion engine
09/1985
09/26/1985EP0142559A4 Internal combustion engine.
09/17/1985US4541398 Method of controlling an exhaust gas recirculating valve in an internal combustion engine
09/10/1985US4539967 Duty ratio control method for solenoid control valve means
08/1985
08/13/1985US4534334 Exhaust-gas recirculation system for internal combustion engine
07/1985
07/30/1985US4531499 Control device for regulating the exhaust gas recycling rate in an internal combustion engine with self-ignition
07/16/1985US4528968 Duty ratio control method for on-off type solenoid valves
07/03/1985EP0147233A2 Engine exhaust gas recirculation control system
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