Hot surface direct ignition system for gas furnaces

Details Hot surface direct ignition system for gas furnaces Hot surface direct ignition system for gas furnaces

1989-06-13

1991-03-05

Jones, Larry

Combustion

Timer, programmer, retarder or condition responsive control

With test circuit checking or analyzing flame sensing...

431 27, 431 66, 431 69, 431 70, F23Q 2300

Patent

active

049973614

ABSTRACT:
A low cost hot surface ignition system particularly adapted for use in gas furnaces and the like, the system including low voltage control and timing circuitry effective to control a gas valve and high voltage ignition circuitry incorporating a hot surface silicon carbide igniter disposed in the path of incoming gas and in the heat of the flame when ignition is achieved to effect flame rectification resulting in flame sensing. The system also provides fail-safe operation or safety shutdown of the associated furnace if ignition is not achieved or in the event of a failure of a component of the system.

REFERENCES:
patent: 3947220 (1976-03-01), Dietz
patent: 4190414 (1980-02-01), Elmy
patent: 4260362 (1981-04-01), Matthews
patent: 4303385 (1981-12-01), Rudich et al.
patent: 4325689 (1982-04-01), Burke
patent: 4459097 (1984-07-01), Riordan et al.
patent: 4643668 (1987-02-01), Geary
patent: 4746284 (1988-05-01), Geary
patent: 4856983 (1989-08-01), Geary

Affiliated with

Also associated with

Rating

Hot surface direct ignition system for gas furnaces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hot surface direct ignition system for gas furnaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot surface direct ignition system for gas furnaces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-493472