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Title:
MEMBRANE TYPE CARBURETOR
Document Type and Number:
Japanese Patent JP3952239
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a carburetor which is attached without remarkably varying a structure to a carburetor main body, and avoid erroneous operation of an acceleration pump caused by pulsative motion of an engine.
SOLUTION: An inner space of a carburetor main body 15 is divided into a constant pressure fuel chamber 25 and an atmospheric chamber 30 by means of a film 29. Fuel in the constant pressure fuel chamber 25 is supplied to an intake passage 16. In such a membrane type carburetor, the atmospheric pressure chamber is opened to atmosphere through a throttle 30b. An end wall of the carburetor main body 15 on the side of an outlet of the intake passage 16 is connected to a heat insulative pipe 64, across a passage wall plate 65 therebetween. An acceleration pump B is connected to an outer end of the passage wall plate 65. The plate 65 has a passage 67 connecting the intake passage 16 to a negative pressure operation chamber 73 of the acceleration pump B, and a passage 68 connecting a pump chamber 71 of the acceleration pump B to the atmospheric chamber 30.


Inventors:
Suzuki, Masao
Tobiuchi, Teruhiko
Terakado, Hitoshi
Application Number:
JP1998000211900
Publication Date:
August 01, 2007
Filing Date:
July 10, 1998
Export Citation:
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Assignee:
NIPPON WALBRO:KK
International Classes:
F02M17/04; F02M7/08; (IPC1-7): F02M17/04; F02M7/08
Domestic Patent References:
JP57052659A
JP9088723A
JP2141659U
JP47011206Y1
JP45012653Y1
JP5032759U
Attorney, Agent or Firm:
大島 陽一