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Title:
BUTTERFLY TYPE CARBURETOR
Document Type and Number:
Japanese Patent JP3787668
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To miniaturize a carburetor by connecting the start fuel room and float room of a start device by a start fuel introduction passage and also branching an acceleration fuel suction passage from the start fuel introduction passage.
SOLUTION: The fuel in a float room 6 is poured in a start fuel room 20 through a start fuel introduction passage 21 and reaches an acceleration fuel suction passage 9. At the engine start time, when a start valve 28 releases a start fuel injection hole 24, start air/mixture passages 26, 27, the fuel in the start fuel room 20 is sucked out into a start valve room 23 through the start fuel injection hole 24 and a suction side check valve 18 is blocked, while, an air is sucked out in the start valve room 23 through the start air passage 26 and the start mixture is supplied to an engine. At the engine accelerating operation time, when a through valve 4 releases/blocks an intake passage 2 and descends/ascends a plunger valve 12, the intake side check valve 18 is blocked/ released and the fuel in a pump room 13 is compressed/decompressed and a discharge side check valve 19 is released/blocked and a fuel for acceleration is injected in the intake passage 2 and the fuel is sucked in.


Inventors:
Kenichi Nomura
Application Number:
JP30121796A
Publication Date:
June 21, 2006
Filing Date:
October 25, 1996
Export Citation:
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Assignee:
Keihin Co., Ltd.
International Classes:
F02M1/02; F02M7/08; (IPC1-7): F02M1/02; F02M7/08
Domestic Patent References:
JP59174352U
JP3019457U
JP6067842U
JP4358748A
Attorney, Agent or Firm:
Hiroshi Ikeda