Flame detection system

Details Flame detection system Flame detection system

1996-10-15

1998-02-24

Dority, Carroll B.

Combustion

Process of combustion or burner operation

Starting or shutdown procedure

431 25, 431 59, 340579, F23N 520

Patent

active

057206040

ABSTRACT:
A flame sensor senses the intensity of a pilot flame to determine whether main burner ignition has occurred in a gas furnace. The sensor includes a computer which is operative to trigger the sensing of the flame intensity following the provision of gas to the main burner. Circuitry associated with the computer preferably provides an indication of the pilot flame intensity to the computer through a measurement of the electrical conductivity of the pilot flame following provision of gas to the main burner.

REFERENCES:
patent: 5073104 (1991-12-01), Kemio
patent: 5548277 (1996-08-01), Wild

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