JPS5765843A - Variable venturi carburetter - Google Patents

Variable venturi carburetter

Info

Publication number
JPS5765843A
JPS5765843A JP13933380A JP13933380A JPS5765843A JP S5765843 A JPS5765843 A JP S5765843A JP 13933380 A JP13933380 A JP 13933380A JP 13933380 A JP13933380 A JP 13933380A JP S5765843 A JPS5765843 A JP S5765843A
Authority
JP
Japan
Prior art keywords
needle
jet
carburetter
air volume
contact
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
JP13933380A
Other languages
Japanese (ja)
Inventor
Norihiko Nakamura
Takashi Kato
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 JP13933380A priority Critical patent/JPS5765843A/en
Publication of JPS5765843A publication Critical patent/JPS5765843A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent eccentric wear of a needle due to vibraion by eliminating a contact between a needle and a jet of a variable venturi carburetter within the operational range of high suction air volume.
CONSTITUTION: A piston 1 engaged with a metering needle 3 on the end of the piston, is installed inside a suction chamber 14 of a carburetter 10, making a sliding motion in proportion to the negative pressure of a venturi member 13. The needle 3 normally brought into constant with a part of a jet by a projection 24 installed on a holder 4', makes a sliding motion. A needle holder 17 is concentrically formed in a rod guide 15 provided inside the suction chamber 14, while a guide 16 is bored on the end of the needle holder 17. In the operational range of low air volume for an engine, the needle 3 is positioned as illustrated, making a contact with the jet 7 while the other end of the needle 3 is inserted into the guide 16 and the contact between the needle 3 and the jet 7 disappears in the operational region of high air volume.
COPYRIGHT: (C)1982,JPO&Japio
JP13933380A 1980-10-07 1980-10-07 Variable venturi carburetter Pending JPS5765843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13933380A JPS5765843A (en) 1980-10-07 1980-10-07 Variable venturi carburetter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13933380A JPS5765843A (en) 1980-10-07 1980-10-07 Variable venturi carburetter

Publications (1)

Publication Number Publication Date
JPS5765843A true JPS5765843A (en) 1982-04-21

Family

ID=15242870

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13933380A Pending JPS5765843A (en) 1980-10-07 1980-10-07 Variable venturi carburetter

Country Status (1)

Country Link
JP (1) JPS5765843A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472322A (en) * 1982-11-01 1984-09-18 Aisan Kogyo Kabushiki Kaisha Variable venturi carburetor
JPS6114755U (en) * 1984-06-29 1986-01-28 株式会社京浜精機製作所 Constant vacuum vaporizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4472322A (en) * 1982-11-01 1984-09-18 Aisan Kogyo Kabushiki Kaisha Variable venturi carburetor
JPS6114755U (en) * 1984-06-29 1986-01-28 株式会社京浜精機製作所 Constant vacuum vaporizer
JPH0238056Y2 (en) * 1984-06-29 1990-10-15

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