Gas control circuit

Details Gas control circuit Gas control circuit

1985-02-26

1987-03-24

Focarino, Margaret A.

Combustion

Timer, programmer, retarder or condition responsive control

By combustion or combustion zone sensor

431 46, 431 66, 431 69, 340579, F23N 500

Patent

active

046522310

ABSTRACT:
An improved electrical circuit for controlling the operation of a gas solenoid valve which regulates the flow of gas to a burner. Field effect transistors, whose operation is controlled by a flame rectification circuit and/or a timing circuit, directly control the operation of a relay which, in turn, operates the gas solenoid valve, thus eliminating the need for much more complicated circuitry to effect actuation of the gas solenoid valve.

REFERENCES:
patent: 4088984 (1978-05-01), Muramoto et al.
patent: 4427363 (1984-01-01), Hammond

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