Method and device for control of the flame size of gas-fired coo

Details Method and device for control of the flame size of gas-fired coo Method and device for control of the flame size of gas-fired coo

1997-07-01

1999-08-17

Lazarus, Ira S.

Combustion

Timer, programmer, retarder or condition responsive control

Of diverse feed or feed rate in starting, e.g., enriching...

431 37, 431 89, 431 12, 1375991, 137601, 126 39E, F23N 500, F23N 1144, E03B 6520

Patent

active

059384255

ABSTRACT:
A device and a method for the controlled reduction of the gas flow Q fed to a burner nozzle of a gas-fired cooking or baking appliance via a gas supply pipe. The gas supply pipe is branched into a number n of partial gas pipes connected in parallel, through which a partial gas flow Q.sub.k with k=1,2,3, . . . ,n can be fed to the burner nozzle in each case, and which have a control unit in each case, the control units each being connected on their gas inlet side to the gas supply pipe and on their gas outlet side to the burner nozzle, and have a switching element for switching on and off the partial gas flow Q.sub.k passing through them and a throttle element for reduction of the partial gas flow Q.sub.k passing through them. The switching elements can be switched on and off according to the selected heating power. Alternatively a number n of throttle elements are connected in series with switching elements connected in parallel.

REFERENCES:
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patent: 3905394 (1975-09-01), Jerde
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patent: 4478246 (1984-10-01), Sherrod
patent: 4518011 (1985-05-01), Stoll
patent: 4585161 (1986-04-01), Kusama et al.
patent: 5653220 (1997-08-01), Velie et al.
Patent Abstracts Of Japan, Publication No. 59147930, Publication Date Aug. 24, 1984.

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