Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1980-01-24
1982-06-15
Burns, Wendell E.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
123588, F02M 2506
Patent
active
043345158
ABSTRACT:
A temperature responsive, pressure operated diaphragm valve assembly for use in association with an automobile internal combustion engine comprises a valve housing having a working chamber on one side of a diaphragm member, a biasing spring used to urge the diaphragm member in one direction with a valving element held in position to close a fluid passage, one end of the fluid passage being communicated to the fuel intake system of the engine and the other end thereof communicated to a source of fluid medium, and a temperature sensor having a parameter, the magnitude of which is variable according to the magnitude of the ambient temperature. The temperature sensor also has a push rod axially movable in response to change in magnitude of the parameter, the movement of the push rod being in turn transmitted to the biasing spring to adjust the biasing force exerted thereby on the diaphragm member. The fluid passage is opened only when the negative pressure introduced into the working chamber overcome the variable biasing force of the biasing spring determined by the engine reference temperature.
REFERENCES:
patent: 3802402 (1974-04-01), Swatman
patent: 3990418 (1976-11-01), Nohira et al.
patent: 4098241 (1978-07-01), Tateno et al.
patent: 4117814 (1978-10-01), Takahashi
patent: 4163434 (1979-08-01), Tsukamoto et al.
patent: 4191143 (1980-03-01), Ysuki
Burns Wendell E.
Toyo Kogyo Co. Ltd.
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