Combustion – Process of combustion or burner operation – Starting or shutdown procedure
Patent
1994-02-10
1996-07-02
Jones, Larry
Combustion
Process of combustion or burner operation
Starting or shutdown procedure
431 18, 137595, 25112915, F23N 520
Patent
active
055315895
ABSTRACT:
A fuel control system, a control device therefor and methods of making and operating the same are provided, the fuel control system comprising a source of fuel a burner unit, an electrically operated valve unit adapted to be opened to interconnect the source of fuel to the burner unit when the valve unit is energized, the valve unit having a coil, an electrical power source having a value sufficient for opening the valve unit when operatively interconnected to the coil to energize the coil, a control device for operatively interconnecting the power source to the coil when the control device determines that fuel should be directed to the burner unit, the control device being so constructed and arranged that the control device is adapted to operatively interconnect the power source to the coil without the use of relay contacts between the power source and the coil.
REFERENCES:
patent: 4641778 (1987-02-01), Dodson
patent: 4787414 (1988-11-01), Kelly et al.
patent: 5209655 (1993-05-01), Geary
Jones Larry
Robertshaw Controls Company
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