Carburetor with auxiliary accelerator-pump system

Details Carburetor with auxiliary accelerator-pump system Carburetor with auxiliary accelerator-pump system

1977-03-29

1978-02-28

Miles, Tim R.

Gas and liquid contact apparatus

Fluid distribution

Pumping

261 34B, 261 39A, F02M 708

Patent

active

040767701

ABSTRACT:
A carburetor with an auxiliary accelerator-pump system including a diaphragm pump. This diaphragm pump includes a fuel chamber and a vacuum chamber which are separated by a spring-loaded diaphragm. The fuel chamber leads by way of a check valve to a fuel reservoir or float bowl in the carburetor and by way of another check valve to a pump jet or nozzle which is open into the intake passage of the carburetor, while the vacuum chamber leads to a vacuum take-off port open into the intake passage downstream of its throttle valve. This fuel chamber is communicated by way of a valve with the fuel reservoir or float bowl, the aforesaid valve being actuated in response to a vacuum prevailing in the intake passage downstream of the throttle valve.

REFERENCES:
patent: 1896499 (1933-02-01), Tice
patent: 1930423 (1933-10-01), Eriksson
patent: 2067713 (1937-01-01), Kommer
patent: 2212946 (1940-08-01), Mock et al.
patent: 2252960 (1941-08-01), Brown
patent: 3618581 (1971-11-01), Simonet
patent: 3911062 (1975-10-01), Johnson
patent: 4018856 (1977-04-01), Hamakawa et al.

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