JPS5647647A - Air-to-fuel ratio controller at the time of deceleration - Google Patents

Air-to-fuel ratio controller at the time of deceleration

Info

Publication number
JPS5647647A
JPS5647647A JP12170779A JP12170779A JPS5647647A JP S5647647 A JPS5647647 A JP S5647647A JP 12170779 A JP12170779 A JP 12170779A JP 12170779 A JP12170779 A JP 12170779A JP S5647647 A JPS5647647 A JP S5647647A
Authority
JP
Japan
Prior art keywords
negative pressure
deceleration
time
auxiliary
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
JP12170779A
Other languages
Japanese (ja)
Inventor
Mitsunori Teramura
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP12170779A priority Critical patent/JPS5647647A/en
Publication of JPS5647647A publication Critical patent/JPS5647647A/en
Pending legal-status Critical Current

Links

Landscapes

  • Means For Warming Up And Starting Carburetors (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)

Abstract

PURPOSE: To prevent excessive concentration of air-fuel mixture by providing an auxiliary diaphragm device to make the opening degree larger when high negative pressure at the time of deceleration is worked on a choke valve, in a carburetor equipped with a choke opener.
CONSTITUTION: A main diaphragm 8 as an opener is connected to a choke valve 3, and opening of the choke valve 3 is done in response to negative pressure downstream of a throttle valve 2 which is let in through a main negative pressure duct 20. Besides, an auxiliary diaphragm 10 is connected through an auxiliary rod 11 to the main diaphragm 8, and the same negative pressure is let through an auxiliary negative pressure duct 21 into its negative pressure chamber 19. And the auxiliary diaphragm 10 is set to move under high negative pressure at the time of deceleration, and the choke valve 3 is slightly opened by moving to the right at the time of deceleration.
COPYRIGHT: (C)1981,JPO&Japio
JP12170779A 1979-09-21 1979-09-21 Air-to-fuel ratio controller at the time of deceleration Pending JPS5647647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12170779A JPS5647647A (en) 1979-09-21 1979-09-21 Air-to-fuel ratio controller at the time of deceleration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12170779A JPS5647647A (en) 1979-09-21 1979-09-21 Air-to-fuel ratio controller at the time of deceleration

Publications (1)

Publication Number Publication Date
JPS5647647A true JPS5647647A (en) 1981-04-30

Family

ID=14817883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12170779A Pending JPS5647647A (en) 1979-09-21 1979-09-21 Air-to-fuel ratio controller at the time of deceleration

Country Status (1)

Country Link
JP (1) JPS5647647A (en)

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