JPS5491632A - Variable venturi type carburetor - Google Patents

Variable venturi type carburetor

Info

Publication number
JPS5491632A
JPS5491632A JP15893977A JP15893977A JPS5491632A JP S5491632 A JPS5491632 A JP S5491632A JP 15893977 A JP15893977 A JP 15893977A JP 15893977 A JP15893977 A JP 15893977A JP S5491632 A JPS5491632 A JP S5491632A
Authority
JP
Japan
Prior art keywords
piston
fuel
chamber
fixed
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
JP15893977A
Other languages
Japanese (ja)
Inventor
Masaharu Sumiyoshi
Setsuo Sekiya
Katsuhiko Motosugi
Yuzo Takeuchi
Mikio Minoura
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 JP15893977A priority Critical patent/JPS5491632A/en
Publication of JPS5491632A publication Critical patent/JPS5491632A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To improve the responsiveness of a variable venturi type carburetor by constituting same such that a cylinder chamber formed above a piston of the carburetor is acted upon by fuel pressure by way of a pressure responsive member.
CONSTITUTION: A piston 5 is didposed perpendicularly to a suction passage 3 for sliding movement in the vertical direction in an outer cylinder 9. The piston 5 has therein a cylinder chamber 10 whichis defined by a cylindrical rod 17 fixed to the piston 5 and a guide 9a fixed to the outer cylinder 9. Negative pressure in the upstream of a throttle valve 1 is introduced into a chamber 41 defined by a diaphragm 39 of a pressure responsive member 37. A plunger 45 fixed to the diaphragm 39 has a piolt valve 47 formed thereon. Movement of the valve 47 allows fuel to be introduced into the cylinder chamber 10 from a fuel tank 30 by way of a pump 29 and passages 48, 49. The position of the metalling rod 18 is corrected by the fuel pressure acting upon to this chamber 10 to regulate fuel from a jet 20a.
COPYRIGHT: (C)1979,JPO&Japio
JP15893977A 1977-12-29 1977-12-29 Variable venturi type carburetor Pending JPS5491632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15893977A JPS5491632A (en) 1977-12-29 1977-12-29 Variable venturi type carburetor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15893977A JPS5491632A (en) 1977-12-29 1977-12-29 Variable venturi type carburetor

Publications (1)

Publication Number Publication Date
JPS5491632A true JPS5491632A (en) 1979-07-20

Family

ID=15682638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15893977A Pending JPS5491632A (en) 1977-12-29 1977-12-29 Variable venturi type carburetor

Country Status (1)

Country Link
JP (1) JPS5491632A (en)

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