Start up circuit

Details Start up circuit Start up circuit

1975-05-23

1976-12-28

Cohan, Alan

Combustion

Timer, programmer, retarder or condition responsive control

Of diverse feed or feed rate in starting, e.g., enriching...

236 1E, F23N 500

Patent

active

039999343

ABSTRACT:
In a thermostat control system including means for modulating the fuel flow to a burner above a predetermined level necessary for combustion, the improvement comprising an ignition circuit adapted to provide a larger fuel flow initially to the burner including in one embodiment a bimetallic switch connected for thermal communication with the burner cavity for completing the circuit of the above thermostat control system after the burner cavity reaches a predetermined temperature.
In a second embodiment, a time delay circuit is provided instead of the bimetallic switch, such time delay circuit providing a larger fuel flow to the burner during the ignition time interval.

REFERENCES:
patent: 3818247 (1974-06-01), Chambers et al.

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