Fuel burner valve operator circuit with intermittent ignition

Details Fuel burner valve operator circuit with intermittent ignition Fuel burner valve operator circuit with intermittent ignition

1991-02-19

1992-07-28

Dority, Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

Sensor of electrical condition or temperature of electrical...

431 78, F23N 500

Patent

active

051336561

ABSTRACT:
A burner control system conditions opening of the fuel control valve on proper operation of a hot surface igniter for igniting the fuel. Current flow through and voltage across the hot surface igniter is constantly monitored, and if either is not proper, the valve closes. A pair of diodes provides half wave DC current of different polarity respectively for the hot surface igniter and the valve actuator.

REFERENCES:
patent: 3676042 (1970-06-01), Oborne
patent: 4190414 (1980-02-01), Elmy
patent: 4269589 (1981-05-01), Matthews
patent: 4306853 (1981-12-01), Rippelmeyer
patent: 4323342 (1982-02-01), Sommers, Jr. et al.
patent: 4360338 (1982-11-01), Katchka
patent: 4806095 (1989-02-01), Goldstein et al.

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