Carburetor for internal combustion engines with an acceleration

Details Carburetor for internal combustion engines with an acceleration Carburetor for internal combustion engines with an acceleration

1979-08-28

1981-02-17

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Pumping

417308, F02M 708

Patent

active

042514711

ABSTRACT:
A carburetor for internal combustion engines with an acceleration pump whose pump chamber is connected to the float chamber by a suction duct having a suction valve. The pump chamber also is connected to the intake line section upstream of the throttle by a delivery duct having a pressure valve and a calibrated injection opening. The acceleration pump has a displacement member which is actuated via a linkage by a lever depending on the throttle position. The pump chamber has a flow duct, leading to the float chamber and having a cross section adjustable by means of a screw, and a second adjustable flow duct whose inlet has a valve actuated by the throttle position. The valve may have a spring which presses a closure member, held in a diaphragm, against the inlet overcoming the force of the fuel pressure. This spring also presses a plunger against a second lever arm which actuates the acceleration pump.

REFERENCES:
patent: 2235797 (1941-03-01), Carlson
patent: 2417734 (1947-03-01), Carlson et al.
patent: 2421810 (1947-06-01), Simpson
patent: 2458990 (1949-01-01), Griffon
patent: 3409277 (1968-11-01), Reise
patent: 4025588 (1977-05-01), Nakamura et al.
patent: 4075294 (1978-02-01), Saito et al.

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