Stoves and furnaces – Hot-air furnaces – Liquid or gaseous fuel
Patent
1979-03-09
1981-04-28
O'Connor, Daniel J.
Stoves and furnaces
Hot-air furnaces
Liquid or gaseous fuel
126110R, 236 15BB, 236 15BD, 431 63, 431 74, 431262, 431328, F24H 300, F23N 100
Patent
active
042638860
ABSTRACT:
An electronically controlled space heater includes a ceramic block heating element fed by a metering pump with fixed volume charges of liquid fuel at a rate dependent on temperature requirements. The heating element is located within a combustion chamber. Exhaust gases vented from the combustion chamber are applied directly to a thermocouple whose voltage output is utilized to vary or maintain the frequency of a pulse circuit driving the metering pump. An operator-adjustable potentiometer functions as a thermostat to establish a desired temperature reference value to which the thermocouple output is continuously compared. Start-up and shutdown circuitry precludes the development of unsafe operating conditions.
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O'Connor Daniel J.
White Consolidated Industries, Inc.
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