Manifold gas valve with stepped flow operation

Details Manifold gas valve with stepped flow operation Manifold gas valve with stepped flow operation

1976-09-07

1977-11-29

Schwadron, Martin P.

Combustion

Timer, programmer, retarder or condition responsive control

Of diverse feed or feed rate in starting, e.g., enriching...

1374895, 137495, 236 80R, 431 54, 431 58, F23N 100, F16K 3112

Patent

active

040603709

ABSTRACT:
A manifold gas valve for controlling gas flow to a burner has a diaphragm operated main valve, an electrically operated control valve, and means to delay the application of gas pressure to the main valve operating diaphragm to effect a delayed opening of the main valve. Opening of the control valve permits an immediate flow of gas to the main burner and simultaneously admits the application of gas pressure to effect a delayed opening of the main valve. The immediate flow of gas to the burner, which occurs upon opening of the control valve, is sufficient to effect reliable and timely ignition and support combustion.

REFERENCES:
patent: 3126911 (1964-03-01), Galley
patent: 3300174 (1967-01-01), Urban et al.
patent: 3354901 (1967-11-01), Dietiker et al.
patent: 3552430 (1971-01-01), Love
patent: 3721263 (1973-03-01), Visos et al.
patent: 3749120 (1973-07-01), Love et al.

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