JPS5587842A - Variable venturi type carburetor - Google Patents

Variable venturi type carburetor

Info

Publication number
JPS5587842A
JPS5587842A JP15912378A JP15912378A JPS5587842A JP S5587842 A JPS5587842 A JP S5587842A JP 15912378 A JP15912378 A JP 15912378A JP 15912378 A JP15912378 A JP 15912378A JP S5587842 A JPS5587842 A JP S5587842A
Authority
JP
Japan
Prior art keywords
negative pressure
air
valve
chamber
air chamber
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.)
Granted
Application number
JP15912378A
Other languages
Japanese (ja)
Other versions
JPS6032029B2 (en
Inventor
Masaharu Sumiyoshi
Katsuhiko Motosugi
Akira Kido
Toshiharu Morino
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.)
Aisan Industry Co Ltd
Toyota Motor Corp
Original Assignee
Aisan Industry Co Ltd
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 Aisan Industry Co Ltd, Toyota Motor Corp filed Critical Aisan Industry Co Ltd
Priority to JP15912378A priority Critical patent/JPS6032029B2/en
Publication of JPS5587842A publication Critical patent/JPS5587842A/en
Publication of JPS6032029B2 publication Critical patent/JPS6032029B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To raise combustibility in loaded region by accelerating the flow rate of mixed gas by transmitting intake-air negative pressure to the air chamber during a fixed negative pressure time in a variable venturi type carburetor having a suction piston responding to the negative pressure of air inlet pipe.
CONSTITUTION: In the air inlet pipe 1, the suction piston 3 fixed to the diaphragm 6 by which the negative pressure chamber 7 is isolated from the air chamber 8 moves vertically. The tipe of the piston 3 is provided with the needle valve 10 sliding inside the main nozzle 12. The negative pressure of the rear flow at the venturi C is introduced into the negative pressure chamber 7 and the air is introduced into the air chamber 8 through the air hole 14 and the throttle 32. Also, negative pressure is introduced into the air chamber 8 through the negative pressure pipe 56 by opening the valve 49. And, the valve 49 is opened by the negative pressure-responding valve 45 at a load below the fixed value for the engine, whereby the area of the venturi C is reduced and the flow rate of mixed gas is raised.
COPYRIGHT: (C)1980,JPO&Japio
JP15912378A 1978-12-26 1978-12-26 variable venturi type vaporizer Expired JPS6032029B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15912378A JPS6032029B2 (en) 1978-12-26 1978-12-26 variable venturi type vaporizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15912378A JPS6032029B2 (en) 1978-12-26 1978-12-26 variable venturi type vaporizer

Publications (2)

Publication Number Publication Date
JPS5587842A true JPS5587842A (en) 1980-07-03
JPS6032029B2 JPS6032029B2 (en) 1985-07-25

Family

ID=15686729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15912378A Expired JPS6032029B2 (en) 1978-12-26 1978-12-26 variable venturi type vaporizer

Country Status (1)

Country Link
JP (1) JPS6032029B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454076A (en) * 1982-01-08 1984-06-12 Aisan Kogyo Kabushiki Kaisha Variable venturi carburetor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454076A (en) * 1982-01-08 1984-06-12 Aisan Kogyo Kabushiki Kaisha Variable venturi carburetor

Also Published As

Publication number Publication date
JPS6032029B2 (en) 1985-07-25

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