Acceleration apparatus for carburetor

Details Acceleration apparatus for carburetor Acceleration apparatus for carburetor

2006-01-10

2006-01-10

Chiesa, Richard L. (Department: 1724)

Gas and liquid contact apparatus

Fluid distribution

Pumping

C261S044600, C261S044800

Reexamination Certificate

active

06983928

ABSTRACT:
An accelerator for a carburetor that is linked to a throttle valve and allows a piston-type accelerator pump to be operated in a simple configuration that dispenses with a link mechanism and does not greatly enlarge the carburetor. The lower surface of a throttle valve lever (10) is provided with a cam (33) that has a circular shape centered about a throttle valve stem (8) and is configured such that the cam surface (33A) thereof faces a carburetor main body (1). An accelerator pump (25) is placed parallel to the throttle valve stem (8) and the upper end of a piston rod (28) thereof is brought into contact with the cam surface (33A). The cam (33) pushes the piston rod (28) down as the throttle valve lever (10) swings in the opening direction of the throttle valve, and the acceleration fuel in the pump chamber (29) is delivered and supplied to the suction channel (2).

REFERENCES:
patent: 2796242 (1957-06-01), Sarto
patent: 3640512 (1972-02-01), Morgenroth
patent: 4000223 (1976-12-01), Yoshioka et al.
patent: 4247491 (1981-01-01), Tamaki et al.
patent: 6231033 (2001-05-01), Araki
patent: 6343780 (2002-02-01), Nakazato
patent: 53-81831 (1978-07-01), None
patent: 58-133459 (1983-08-01), None
patent: 2-123269 (1990-05-01), None
patent: 6-67842 (1994-09-01), None

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