Control apparatus

Details Control apparatus Control apparatus

1985-02-11

1986-05-06

Dority, Jr., Carroll B.

Combustion

Timer, programmer, retarder or condition responsive control

By combustion or combustion zone sensor

123440, 123489, F23N 500

Patent

active

045868930

ABSTRACT:
The invention is particularly applicable to combustion control apparatus for burners, having a motor-controlled fuel value, and a motor-controlled damper. Coarse control of the damper position is provided by a mechanical profiler, and a trim motor provides fine control of the damper. Overall, the air or fuel is controlled continuously by an up to the minute control signal corresponding to the instantaneous burn rate.

REFERENCES:
patent: 3657524 (1972-04-01), Bakke
patent: 4070608 (1978-01-01), Rosshirt et al.
patent: 4130095 (1978-12-01), Bowler et al.
patent: 4201937 (1980-05-01), Irie
patent: 4373501 (1983-02-01), Rado
patent: 4396369 (1983-08-01), Kaessmann
patent: 4439825 (1984-03-01), Donner
"Learning Control of Valve Actuators in Direct Digital Control Systems", Instrument Society of America, 22nd ISA Conf., Sep. 11-14, 1967, Preprint 31-3-ACOS-67.

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