Ignition control system for a gas appliance

Combustion – Timer – programmer – retarder or condition responsive control – Control of purger – of scavenger or of combustion start-up...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

431 1, 431 69, 126116A, F27N 500

Patent

active

046952462

ABSTRACT:
An ignition control system for a direct ignition gas appliance, such as a furnace. A main gas valve, spark generator, flame sensor, and purge blower are all interconnected to a single controller. The controller issues a purge signal to the blower for a first predetermined period. Thereafter, for a second predetermined period, the controller issues an interconnect signal to allow the main gas valve to open and an ignition signal to cause the ignition source to ignite the gas flowing into the appliance from the valve. If the controller thereafter fails to receive a signal from the flame sensor, the attempt at ignition was unsuccessful. After a predetermined number of unsuccessful attempts at ignition, the controller issues a lockout signal to the valve. Moreover, the controller includes redundant circuits for detecting malfunctions within itself and responsively closing the main gas valve.

REFERENCES:
patent: 3872320 (1975-03-01), Juskewicz, Jr.
patent: 3999933 (1976-12-01), Murphy
patent: 4000961 (1977-01-01), Mandock
patent: 4038019 (1977-07-01), Matthews
patent: 4116613 (1978-09-01), Matthews
patent: 4145179 (1979-03-01), Tanaka et al.
patent: 4192641 (1980-03-01), Nakagawa et al.
patent: 4235587 (1980-11-01), Miles
patent: 4260362 (1981-04-01), Matthews
patent: 4298335 (1981-11-01), Riordan et al.
patent: 4303385 (1981-12-01), Rudich, Jr. et al.
patent: 4319873 (1982-03-01), Michaud et al.
patent: 4381075 (1983-04-01), Cargill et al.
patent: 4389184 (1983-06-01), Tanaka et al.
patent: 4415328 (1983-11-01), Grunden et al.
patent: 4496305 (1985-01-01), Bentz

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Ignition control system for a gas appliance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ignition control system for a gas appliance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ignition control system for a gas appliance will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2055960

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.