Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent
1985-09-26
1987-02-03
Focarino, Margaret A.
Combustion
Timer, programmer, retarder or condition responsive control
By combustion or combustion zone sensor
431 12, 431 90, 431354, 137607, 236 15BD, F23N 500
Patent
active
046406786
ABSTRACT:
A dual-valve controller having a single rotary control element for concurrently adjusting both an air-control valve and a gas-control valve to supply an air/gas combustible mixture to a gas-fired burner. Applied to the inputs of the controller valves are pressurized streams of air and a gaseous fuel. These streams are conducted through the respective valves into a common mixing chamber to provide an output air-gas mixture in a predetermined ratio which is fed into the burner to produce a heating flame. When the control element is manually turned by an operator or automatically by a control motor, it acts to more or less open the valves to corresponding degrees to concurrently adjust the volumetric flow rate of the air and gas, thereby changing the intensity of the flame without, however, altering the air-gas ratio which is set for optimum combustion efficiency.
REFERENCES:
patent: 3371699 (1968-03-01), Riot
patent: 3574505 (1971-04-01), Kimball
patent: 4097219 (1978-06-01), Prowald
patent: 4277031 (1981-07-01), Moumaneix et al.
patent: 4465456 (1984-08-01), Hynek et al.
patent: 4509912 (1985-04-01), Van Berkum
Ebert Michael
Focarino Margaret A.
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