Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent
1977-07-14
1978-11-14
Favors, Edward G.
Combustion
Timer, programmer, retarder or condition responsive control
By combustion or combustion zone sensor
126 39J, F23N 500
Patent
active
041253574
ABSTRACT:
An electronic control system monitors, in a gas burner, the four functions of (1) initial ignition of the gas, (2) continued combustion of the gas, (3) the average time rate at which the gas is burned, and (4) the maximum temperature of the combustion chamber. A first comparator is responsive to a first thermosensitive element for controlling the average burning rate (or energy output) and the maximum temperature limit; a second comparator is responsive to a second thermosensitive unit for monitoring the flame of the burner, to sense initial and continued ignition; a third comparator functions as a timedelay circuit in association with the second comparator during an initial ignition procedure; and a fourth comparator controls the source of gas in response to the condition of the first and second comparators, so that gas is supplied only when both safe and necessary.
REFERENCES:
patent: 3773027 (1973-11-01), Dodd
patent: 3820938 (1974-06-01), Delf et al.
patent: 3986814 (1976-10-01), Demere
Kristen Klaus
Scheidler Herwig
Favors Edward G.
Jenaer Glaswerk Schott & Gen.
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