Independent burner ignition and flame-sense functions

Details Independent burner ignition and flame-sense functions Independent burner ignition and flame-sense functions

1997-04-08

1999-01-12

Dority, Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

Of igniter and feed controlled sequence

431 71, F23N 500

Patent

active

058578455

ABSTRACT:
An ignition/reignition circuit (10) for a gas burner (12) having separate flame sensing and ignition electrodes. The flame sensing electrode (25,30) trips a switch (Q1) upon transition from sensor output signals indicative of the sensed presence of a flame to a sensed absence. The switch is coupled to a spark generator circuit which includes a spark electrode (16) for reigniting the burner in the event of flame failure.

REFERENCES:
patent: 3270799 (1966-09-01), Pinckaers
patent: 3947220 (1976-03-01), Dietz
patent: 4145180 (1979-03-01), Bendorf
patent: 4230444 (1980-10-01), Matthews
patent: 4231732 (1980-11-01), Newport et al.
patent: 4359315 (1982-11-01), Matthews
patent: 4626193 (1986-12-01), Gann
patent: 5141431 (1992-08-01), Geary
patent: 5348466 (1994-09-01), Momber

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