Hot surface ignitor

Details Hot surface ignitor Hot surface ignitor

1996-02-16

1999-02-02

Yeung, James C.

Combustion

Timer, programmer, retarder or condition responsive control

Igniter heat up and fuel feed sequence controlled by timer...

431258, F23N 500

Patent

active

058656120

ABSTRACT:
An ignition circuit and method for a hot surface ignitor. The ignition process and apparatus enforces a short warm-up period for the hot surface ignitor where approximately half power is supplied at start-up to the ignitor until the ignitor warms to a point where its impedance is increased. By warming the ignitor gradually, the system power supply is not pulled down to a level which may cause malfunction of other electronics connected to the same supply. Further, the voltage level to the ignitor is controlled so that service life of the ignitor is extended.

REFERENCES:
patent: 2329888 (1943-09-01), Eskin et al.
patent: 4615282 (1986-10-01), Brown
patent: 4925386 (1990-05-01), Donnelly et al.
patent: 4978292 (1990-12-01), Donnelly et al.

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