Device for automatically controlling a gaseous or liquid fuel fi

Details Device for automatically controlling a gaseous or liquid fuel fi Device for automatically controlling a gaseous or liquid fuel fi

1975-10-01

1976-10-19

Favors, Edward G.

Combustion

Timer, programmer, retarder or condition responsive control

Of igniter and feed controlled sequence

431 62, 431 79, 431 80, F23N 508

Patent

active

039868141

ABSTRACT:
A device for controlling a gaseous or liquid fuel fired appliance as a function of a parameter includes a fuel supply controlled by a valve operated in dependence on a signal furnished by means sensitive to the parameter. The device includes a first circuit triggerable by the parameter-sensitive means when the parameter exceeds a first value and a second circuit triggerable by the parameter-sensitive means when the parameter falls below a second value lower than the first value. These circuits operate the valve appropriately for a given period of time. The device includes a spark generator for ignition of the fuel and an inhibitor to stop spark generation on fuel ignition. The device also includes first and second dc sources for independent supply of the first and second circuits, which require negligible current when not operative.

REFERENCES:
patent: 3301307 (1967-01-01), Nishigaki et al.
patent: 3393868 (1968-07-01), Griem

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