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Patent Searching and Data


Title:
VARIABLE VENTURI TYPE CARBURETOR
Document Type and Number:
Japanese Patent JPH0688550
Kind Code:
A
Abstract:

PURPOSE: To provide a variable venturi type carburetor that is able to improve the extent of responsiveness to a fuel supply to a venturi part in time of sudden valve opening of a throttle valve as well as to check an increase of flow resistance in an intake passage due to the projection of a suction piston in time of sudden valve closing of the throttle valve, and besides, even if inertia force works on this suction piston, any possible variation in the piston is restrained, stabilizing the rotation of an engine in this way.

CONSTITUTION: This carburetor is so featured that a bypass path 25 is installed in the space between an intake passage 12b being situated at the more downstream side than a suction piston 15 and at the more upstream side than a throttle valve 24 and a suction chamber 21, and a check valve 27, preventing any backflow of air from the intake passage 12b side to the suction chamber 21 side, is installed in this bypass path 25.


Inventors:
Shirakigawa, Tsutomu
Application Number:
JP1992000245803
Publication Date:
March 29, 1994
Filing Date:
August 21, 1992
Export Citation:
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Assignee:
SHIRAKIGAWA TSUTOMU
International Classes:
F02M7/17; F02M9/12; (IPC1-7): F02M7/17; F02M9/12
Attorney, Agent or Firm:
中前 富士男