JPS555407A - Air-fuel ratio controller for lpg engine - Google Patents

Air-fuel ratio controller for lpg engine

Info

Publication number
JPS555407A
JPS555407A JP7542078A JP7542078A JPS555407A JP S555407 A JPS555407 A JP S555407A JP 7542078 A JP7542078 A JP 7542078A JP 7542078 A JP7542078 A JP 7542078A JP S555407 A JPS555407 A JP S555407A
Authority
JP
Japan
Prior art keywords
slow
solenoid valve
main
bleed
valve
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
JP7542078A
Other languages
Japanese (ja)
Inventor
Takashige Kono
Yoshitaka Oshiro
Masayoshi Momono
Hisatoku Moriya
Takeshi Atago
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.)
Hitachi Ltd
Nissan Motor Co Ltd
Original Assignee
Hitachi Ltd
Nissan Motor 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 Hitachi Ltd, Nissan Motor Co Ltd filed Critical Hitachi Ltd
Priority to JP7542078A priority Critical patent/JPS555407A/en
Publication of JPS555407A publication Critical patent/JPS555407A/en
Pending legal-status Critical Current

Links

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE: To make the operation of fuel flow control for main system by using a diaphragm valve and the operation of one for slow system by using a solenoid valve to change a cross sectional area of the air bleed flow passage, in the LPG engine.
CONSTITUTION: The voltage signal from an O2 sensor 13 is fed to a control circuit 14 that actuates a slow solenoid valve 15 and a main solenoid valve 16. The slow solenoid valve 15 makes the on-off operation of an air bleed passage 17, made opening in a slow path 9 at the downstream of a slow jet 8, to control a fuel flow in the slow fuel system by means of controlling a bleed air quantity. The main solenoid valve 16 is used for changing a bleed air quantity into a negative pressure 21 linked to a diaphragm chamber 20 of a diaphragm valve 19, to actuate a valve unit 22 by means of changing a bleed air quantity, with a flow path cross sectional area made varying of the main jet part.
COPYRIGHT: (C)1980,JPO&Japio
JP7542078A 1978-06-23 1978-06-23 Air-fuel ratio controller for lpg engine Pending JPS555407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7542078A JPS555407A (en) 1978-06-23 1978-06-23 Air-fuel ratio controller for lpg engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7542078A JPS555407A (en) 1978-06-23 1978-06-23 Air-fuel ratio controller for lpg engine

Publications (1)

Publication Number Publication Date
JPS555407A true JPS555407A (en) 1980-01-16

Family

ID=13575671

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7542078A Pending JPS555407A (en) 1978-06-23 1978-06-23 Air-fuel ratio controller for lpg engine

Country Status (1)

Country Link
JP (1) JPS555407A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5532923A (en) * 1978-08-24 1980-03-07 Automob Antipollut & Saf Res Center Fuel supply equipment supplying lpg etc.
US4503831A (en) * 1983-04-09 1985-03-12 Robert Bosch Gmbh Apparatus for air-injection of liquid gas
US5237981A (en) * 1992-02-21 1993-08-24 Pas, Inc. Fuel injection apparatus for vehicles
US7551049B2 (en) 2004-11-08 2009-06-23 Denso Corporation Structure of electromagnetic switch for starter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5532923A (en) * 1978-08-24 1980-03-07 Automob Antipollut & Saf Res Center Fuel supply equipment supplying lpg etc.
US4503831A (en) * 1983-04-09 1985-03-12 Robert Bosch Gmbh Apparatus for air-injection of liquid gas
US5237981A (en) * 1992-02-21 1993-08-24 Pas, Inc. Fuel injection apparatus for vehicles
WO1993017235A1 (en) * 1992-02-21 1993-09-02 Pas, Inc. Fuel injection apparatus for vehicles
US7551049B2 (en) 2004-11-08 2009-06-23 Denso Corporation Structure of electromagnetic switch for starter

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