Inventor

DREWS ULRICH

DE37 patents

Patents

37 patents

US4244340AJan 13, 1981

Method and apparatus for controlling fuel management for an internal combustion engine

BOSCH GMBH ROBERT40 citations92

US5892332AApr 6, 1999

Method and apparatus for fuel control of an internal combustion engine during cold-starting

BOSCH GMBH ROBERT20 citations81

US4278061AJul 14, 1981

Method and apparatus for adjusting fuel injection control

BOSCH GMBH ROBERT11 citations74

US5397965AMar 14, 1995

Device for operating a gas discharge lamp

BOSCH GMBH ROBERT15 citations73

US5367227ANov 22, 1994

Circuit arrangement for operating a gas-discharge lamp

BOSCH GMBH ROBERT14 citations73

US4531190AJul 23, 1985

Electronic engine control system with emergency operation mode

BOSCH GMBH ROBERT17 citations73

US4420971ADec 20, 1983

Device for flowthrough rate measurement in an internal combustion engine

BOSCH GMBH ROBERT10 citations73

US4335696AJun 22, 1982

Method and apparatus for performing fuel mixture enrichment

BOSCH GMBH ROBERT7 citations73

US4249498AFeb 10, 1981

Apparatus for correcting a fuel apportionment signal in an internal combustion engine

BOSCH GMBH ROBERT7 citations73

US4240383ADec 23, 1980

Fuel metering device for an internal combustion engine

BOSCH GMBH ROBERT14 citations73

US5894202AApr 13, 1999

Ignition device for gas discharge lamps, particularly for motor vehicle lights

BOSCH GMBH ROBERT13 citations72

US4474058AOct 2, 1984

Air flow rate meter for an internal combustion engine

BOSCH GMBH ROBERT16 citations72

US4393841AJul 19, 1983

Device for regulating the fuel-air ratio in internal combustion engines

BOSCH GMBH ROBERT12 citations72

US4345562AAug 24, 1982

Method and apparatus for regulating the fuel-air ratio in internal combustion engines

BOSCH GMBH ROBERT12 citations72

US4171692AOct 23, 1979

Fuel injection control system

BOSCH GMBH ROBERT7 citations72

US4150305AApr 17, 1979

Frequency divider circuits

BOSCH GMBH ROBERT7 citations72

US4140086AFeb 20, 1979

Apparatus for adjusting the combustible mixture of an internal combustion engine

BOSCH GMBH ROBERT16 citations72

US4089317AMay 16, 1978

Apparatus for mixture enrichment in an internal combustion engine

BOSCH GMBH ROBERT10 citations72

US4084552AApr 18, 1978

Method and apparatus for fuel injection control

BOSCH GMBH ROBERT9 citations72

US4058106ANov 15, 1977

Method and apparatus for RPM limitation in internal combustion engines

BOSCH GMBH ROBERT10 citations72

US4015563AApr 5, 1977

Stabilized fuel injection system

BOSCH GMBH ROBERT16 citations72

US4205635AJun 3, 1980

Fuel mixture control system

BOSCH GMBH ROBERT13 citations71

US4357922ANov 9, 1982

Method and apparatus for operating a fuel-supply system with lambda control

BOSCH GMBH ROBERT11 citations68

US5552680ASep 3, 1996

Device for operating a gas-discharge lamp

BOSCH GMBH ROBERT3 citations63

US4437339AMar 20, 1984

Linearizing and control circuit for air flow rate meter

BOSCH GMBH ROBERT5 citations63

US4231345ANov 4, 1980

Apparatus for controlling an electrical switching element in internal combustion engines

BOSCH GMBH ROBERT4 citations63

US4658641AApr 21, 1987

Method and apparatus for measuring the flow rate of a flowing medium

BOSCH GMBH ROBERT3 citations62

US4320732AMar 23, 1982

Method and apparatus for generating fuel injection control pulses for an internal combustion engine

BOSCH GMBH ROBERT6 citations62

US4174682ANov 20, 1979

Auxiliary fuel injection control circuit

BOSCH GMBH ROBERT6 citations61

US4222352ASep 16, 1980

Electrically controlled fuel injection system

BOSCH GMBH ROBERT4 citations60

US4297599AOct 27, 1981

Circuit arrangement for obtaining an interference-free trigger signal especially for a fuel apportionment device in an internal combustion engine

BOSCH GMBH ROBERT5 citations58

US4088927AMay 9, 1978

Interference-protected, switch-controlled square wave generation circuit

BOSCH GMBH ROBERT1 citations50

US4254742AMar 10, 1981

Apparatus for adapting engine fuel supply to ambient air temperature

BOSCH GMBH ROBERT0 citations40

US4024843AMay 24, 1977

Fuel injection system for combination with internal combustion engines, having a universally connectable input trigger stage

BOSCH GMBH ROBERT0 citations39

DREWS ULRICH

Patents

Method and apparatus for controlling fuel management for an internal combustion engine

Starter for a high-pressure gas discharge lamp

Headlight for motor vehicles

Input circuit for the starter of a high-pressure gas-filled discharge lamp

Method and apparatus for fuel control of an internal combustion engine during cold-starting

Method and apparatus for adjusting fuel injection control

Device for operating a gas discharge lamp

Circuit arrangement for operating a gas-discharge lamp

Electronic engine control system with emergency operation mode

Device for flowthrough rate measurement in an internal combustion engine

Method and apparatus for performing fuel mixture enrichment

Apparatus for correcting a fuel apportionment signal in an internal combustion engine

Fuel metering device for an internal combustion engine

Ignition device for gas discharge lamps, particularly for motor vehicle lights

Air flow rate meter for an internal combustion engine

Device for regulating the fuel-air ratio in internal combustion engines

Method and apparatus for regulating the fuel-air ratio in internal combustion engines

Fuel injection control system

Frequency divider circuits

Apparatus for adjusting the combustible mixture of an internal combustion engine

Apparatus for mixture enrichment in an internal combustion engine

Method and apparatus for fuel injection control

Method and apparatus for RPM limitation in internal combustion engines

Stabilized fuel injection system

Fuel mixture control system

Method and apparatus for operating a fuel-supply system with lambda control

Device for operating a gas-discharge lamp

Linearizing and control circuit for air flow rate meter

Apparatus for controlling an electrical switching element in internal combustion engines

Method and apparatus for measuring the flow rate of a flowing medium

Method and apparatus for generating fuel injection control pulses for an internal combustion engine

Auxiliary fuel injection control circuit

Electrically controlled fuel injection system

Circuit arrangement for obtaining an interference-free trigger signal especially for a fuel apportionment device in an internal combustion engine

Interference-protected, switch-controlled square wave generation circuit

Apparatus for adapting engine fuel supply to ambient air temperature

Fuel injection system for combination with internal combustion engines, having a universally connectable input trigger stage