Spark ignited recycling ignition system with interlocking gas va

Details Spark ignited recycling ignition system with interlocking gas va Spark ignited recycling ignition system with interlocking gas va

1976-04-02

1978-04-25

Truhe, J. V.

Combustion

Timer, programmer, retarder or condition responsive control

Sensor of first burner controls second burner, e.g., pilot...

361256, 431 54, F23Q 908

Patent

active

040860485

ABSTRACT:
An ignition system for heating appliances which burn gas or vaporous fuels. A spark igniter is programmed to ignite a pilot burner which in turn ignites a main burner. A flame rod is used to confirm to the control circuitry that pilot ignition has taken place before the main gas valve is opened. An initially closed timing control circuit opens the pilot gas valve but times out if ignition of the pilot does not occur within a predetermined time. Other circuit interlocking features are provided for overall fail-safe operation.

REFERENCES:
patent: 3270800 (1966-09-01), Deziel et al.
patent: 3395968 (1968-08-01), Mobarry et al.
patent: 3405998 (1968-10-01), Walbridge
patent: 3445173 (1969-05-01), Malavasi et al.
patent: 3627458 (1971-12-01), Wade
patent: 3662185 (1972-05-01), Sapir
patent: 3832123 (1974-08-01), Walbridge

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