JPS5614844A - Electronically controlled carburetor - Google Patents

Electronically controlled carburetor

Info

Publication number
JPS5614844A
JPS5614844A JP8821279A JP8821279A JPS5614844A JP S5614844 A JPS5614844 A JP S5614844A JP 8821279 A JP8821279 A JP 8821279A JP 8821279 A JP8821279 A JP 8821279A JP S5614844 A JPS5614844 A JP S5614844A
Authority
JP
Japan
Prior art keywords
valve
vacuum
atmospheric pressure
egr
diaphragm
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
JP8821279A
Other languages
Japanese (ja)
Inventor
Takashige Ooyama
Hiroshi Kuroiwa
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
Original Assignee
Hitachi 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 filed Critical Hitachi Ltd
Priority to JP8821279A priority Critical patent/JPS5614844A/en
Publication of JPS5614844A publication Critical patent/JPS5614844A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Exhaust-Gas Circulating Devices (AREA)

Abstract

PURPOSE: To improve reliability in the operation of an electronically controlled carburetor, by arranging a control circuit for producing a signal to a solenois valve for controlling operation of an EGR (exhaust-gas recirculation) valve such that the signal is varied as a function of the atmospheric pressure as well as a function of the temperature of engine cooling water and the engine speed.
CONSTITUTION: In a system for recirculating a portion of exhaust gas to intake pipe 12 via EGR pipe 30 and EGR valve 31, the valve 31 is controlled by a vacuum- operated servo diaphragm 32. Here, in order to prevent that pressure (Pa-P) acted to the diaphragm 32 is varied with change of atmospheric pressure Pa, vacuum acted to the vacuum-operated servo diaphragm 32 is controlled by a valve 36. That is, the valve 36 is closed as the atmospheric pressure Pa is lowered and keeps Pa-P constant.
COPYRIGHT: (C)1981,JPO&Japio
JP8821279A 1979-07-13 1979-07-13 Electronically controlled carburetor Pending JPS5614844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8821279A JPS5614844A (en) 1979-07-13 1979-07-13 Electronically controlled carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8821279A JPS5614844A (en) 1979-07-13 1979-07-13 Electronically controlled carburetor

Publications (1)

Publication Number Publication Date
JPS5614844A true JPS5614844A (en) 1981-02-13

Family

ID=13936589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8821279A Pending JPS5614844A (en) 1979-07-13 1979-07-13 Electronically controlled carburetor

Country Status (1)

Country Link
JP (1) JPS5614844A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS545127A (en) * 1977-06-15 1979-01-16 Hitachi Ltd Exhaust gas recirculation controller for internal combustion engine
JPS5438438A (en) * 1977-08-30 1979-03-23 Toyota Motor Corp Method and device for controlling engine exhaust gas recycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS545127A (en) * 1977-06-15 1979-01-16 Hitachi Ltd Exhaust gas recirculation controller for internal combustion engine
JPS5438438A (en) * 1977-08-30 1979-03-23 Toyota Motor Corp Method and device for controlling engine exhaust gas recycle

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