Flame signal stabilization circuit

Details Flame signal stabilization circuit Flame signal stabilization circuit

1977-09-26

1979-09-25

Favors, Edward G.

Combustion

Timer, programmer, retarder or condition responsive control

By combustion or combustion zone sensor

137 66, 328 6, F23N 510

Patent

active

041689496

ABSTRACT:
A flame rectification system is disclosed wherein a flame rod is used to detect the presence of a flame to control a relay or solenoid operated valve. Upon the initial indication of a flame, a pulse generating circuit momentarily overrides the flame rod signal and locks in the relay or valve. This allows the flame at the associated burner to stabilize before the relay or solenoid valve can close in the event of a momentary absence of a flame signal which could result from instability during the flame establishing process.

REFERENCES:
patent: 3814569 (1974-06-01), Jacobsz
patent: 3853455 (1974-12-01), Riordan
patent: 3861854 (1975-01-01), Walbridge
patent: 3914092 (1975-10-01), Matthews
patent: 3941553 (1976-03-01), Bedford

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