Proving system for fuel burner blower

Details Proving system for fuel burner blower Proving system for fuel burner blower

1980-06-12

1982-05-11

Scott, Samuel

Combustion

Timer, programmer, retarder or condition responsive control

By condition of burner feed or feed means

F23H 102

Patent

active

043291384

ABSTRACT:
The invention is a fuel burner system including an electrical control circuit for initiating fuel flow to a burner in response to a call-for-heat from a condition responsive sensor, and an electrical ignitor for igniting the fuel emanating from the burner. Combustion or purging air is directed to the burner by a fan, the integrity of which is monitored by a sensor circuit that produces a fault signal in response to rotation of the fan at any speed in a given range of speeds. An inhibit circuit inhibits the control circuit to prevent opening of a fuel supply valve in response to the presence of the fault signal. Fan rotation at speeds either above or below a predetermined normal range indicates a malfunction and results in the fault signal that prevents the initiation of fuel flow and a try for ignition.

REFERENCES:
patent: 3357473 (1967-12-01), Blackett et al.
patent: 3592574 (1971-07-01), Zenkner
patent: 3825397 (1974-07-01), Johansson et al.
patent: 3969064 (1976-07-01), Ballentine

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