Flame monitor time delay control

Details Flame monitor time delay control Flame monitor time delay control

1984-05-02

1986-03-11

Focarino, Margaret A.

Combustion

Timer, programmer, retarder or condition responsive control

431 69, 431 75, F23N 520

Patent

active

045753334

ABSTRACT:
Apparatus for monitoring flames is provided with means for sampling both the value of a flame and the period of time during which a flame remains above a given intensity level during start-up. Flame-off delay means is also provided in combination with means for delaying a flame-on indication, means for segregating the respective operations thereof, and means for maintaining the durations of the flame-on and flame-off delays in fixed proportional relationship.

REFERENCES:
patent: 4319873 (1982-03-01), Michaud et al.

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