JPS54102424A - Fuel injection device for engine - Google Patents

Fuel injection device for engine

Info

Publication number
JPS54102424A
JPS54102424A JP903778A JP903778A JPS54102424A JP S54102424 A JPS54102424 A JP S54102424A JP 903778 A JP903778 A JP 903778A JP 903778 A JP903778 A JP 903778A JP S54102424 A JPS54102424 A JP S54102424A
Authority
JP
Japan
Prior art keywords
fuel injection
engine
air
fuel
fuel ratio
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP903778A
Other languages
Japanese (ja)
Inventor
Hideya Fujisawa
Norio Omori
Masahiko Miyaki
Kazumori Tsuzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP903778A priority Critical patent/JPS54102424A/en
Publication of JPS54102424A publication Critical patent/JPS54102424A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE: To make an improvement of performance of the engine with the fuel injection quantity controlled in high precision, by operating an electromagnetic mechanism for controlling an opening degree of the variable throttle valve in accordance with the detected signal of an air-fuel ratio, which is detected from the constituent of exhaust gas of the engie.
CONSTITUTION: Judging an output voltage of the air-fuel ratio sensor 8 for whether above or below the set value, to discriminate a mixture, fed to the engine 1, for whether rich or lean, the sensor 8 produces a high voltage for a rich mixture. This voltage, if inputted to a control circuit 70, is pulse-modulated by a duty ratio control circuit 70c, and the pulse voltage, after being amplified by a driver circuit 70d, is applied to a three-way solenoid valve 60, with a fuel injection quantity decreased to increase the air-fuel ratio. Thus with the fuel injection quantity controlled in high precision and an injection operated from a fuel injection nozzle 10 to correctly maintain the air-fuel ratio, an effectiveness of fuel consumption improvements of the engine can be displayed.
COPYRIGHT: (C)1979,JPO&Japio
JP903778A 1978-01-30 1978-01-30 Fuel injection device for engine Pending JPS54102424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP903778A JPS54102424A (en) 1978-01-30 1978-01-30 Fuel injection device for engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP903778A JPS54102424A (en) 1978-01-30 1978-01-30 Fuel injection device for engine

Publications (1)

Publication Number Publication Date
JPS54102424A true JPS54102424A (en) 1979-08-11

Family

ID=11709445

Family Applications (1)

Application Number Title Priority Date Filing Date
JP903778A Pending JPS54102424A (en) 1978-01-30 1978-01-30 Fuel injection device for engine

Country Status (1)

Country Link
JP (1) JPS54102424A (en)

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