JPS5688943A - Controlling apparatus for number of idling revolution - Google Patents

Controlling apparatus for number of idling revolution

Info

Publication number
JPS5688943A
JPS5688943A JP16563479A JP16563479A JPS5688943A JP S5688943 A JPS5688943 A JP S5688943A JP 16563479 A JP16563479 A JP 16563479A JP 16563479 A JP16563479 A JP 16563479A JP S5688943 A JPS5688943 A JP S5688943A
Authority
JP
Japan
Prior art keywords
air
revolution
solenoid valve
slow
correcting
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
JP16563479A
Other languages
Japanese (ja)
Inventor
Takeshi Atago
Tokuo Kosuge
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 JP16563479A priority Critical patent/JPS5688943A/en
Publication of JPS5688943A publication Critical patent/JPS5688943A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

PURPOSE: To obtain proper value of air-fuel ratio in idling revolution by ON-OFF- controlling the bypass air passage and slow air breed of a carburetor by means of one solenoid valve which performs duty control according to the number of revolution.
CONSTITUTION: On the intake passage for the lower stream of the throttle valve 24 of a carburetor 12, a bypass correcting air passage 16 is opened, and to a slow jet 30, an air-fuel ratio correcting air passage 28 for slow air breed is allowed to communicate. At the top ends of both passages 16 and 28, one solenoid valve 26 is mounted which closes and opens to the air. To said solenoid valve 26, the signal of a revolution number detector 22 is input through a correcting circuit 20, and compared with the standard value in the circuit 20, and duty control is performed according to the differential signal, and thus the number of revolution in idling is feedback-controlled.
COPYRIGHT: (C)1981,JPO&Japio
JP16563479A 1979-12-21 1979-12-21 Controlling apparatus for number of idling revolution Pending JPS5688943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16563479A JPS5688943A (en) 1979-12-21 1979-12-21 Controlling apparatus for number of idling revolution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16563479A JPS5688943A (en) 1979-12-21 1979-12-21 Controlling apparatus for number of idling revolution

Publications (1)

Publication Number Publication Date
JPS5688943A true JPS5688943A (en) 1981-07-18

Family

ID=15816082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16563479A Pending JPS5688943A (en) 1979-12-21 1979-12-21 Controlling apparatus for number of idling revolution

Country Status (1)

Country Link
JP (1) JPS5688943A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127158U (en) * 1982-02-23 1983-08-29 トヨタ自動車株式会社 Internal combustion engine idle speed control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127158U (en) * 1982-02-23 1983-08-29 トヨタ自動車株式会社 Internal combustion engine idle speed control device

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