Two stage vacuum break

Details Two stage vacuum break Two stage vacuum break

1979-03-29

1980-12-02

Hershkovitz, Abraham

Gas and liquid contact apparatus

Fluid distribution

Systems

92 49, 92 64, 92 99, 92129, 261 39B, B01D 4700, F01B 1900

Patent

active

042370760

ABSTRACT:
A two stage vacuum break or fluid motor device of the type used to control choke valves of internal combustion engine carburators. The motor uses a single diaphragm in which the fluid motor plunger operates in a first stage in response to movement of a portion of the diaphragm and in a second stage in response to movement of the entire diaphragm. The stages of movement are under the control of separate sources of manifold pressure which may be made available to the device independently of each other. The two stages of operation may be used to control one or more choke valves through a single output plunger or to control a pair of output plungers movable independently of each other.

REFERENCES:
patent: 2465714 (1949-03-01), Elliot
patent: 2936785 (1960-05-01), Hastings
patent: 3291440 (1966-12-01), Archer
patent: 3659500 (1972-05-01), Akman
patent: 4098459 (1978-07-01), Benjamin

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