US 6,318,357 B1Granted

Gas burner configuration for cooking areas

AssigneeBSH Bosch und Siemens Hausgeraete GmbH

InventorsBernd Mühle, Werner Gronnenberg, Jörn Naumann

Life of this patent

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Abstract

A gas burner configuration for cooking areas includes a multi-ring gas burner having an inner burner with laterally aligned gas/air mixture outlet openings and an annular outer burner, disposed at a spacing from the inner burner, with gas/air mixture outlet openings. A hand-operated gas fitting directs, meters, and shuts off the combustion gas, which can be fed to the multi-ring burner through separate pipelines. The gas fitting has valves and three gas duct branches to be opened and closed by the valves using an operating member adjustable to different setting positions. Two of the branches each provide a constant gas throughput, and the third provides variable gas throughput. One of the constant gas throughput branches is associated with the inner burner and is opened by one valve over and entire actuating path of the operating member. The other of the constant gas throughput branches and the variable throughput branch are associated with the outer burner and opened by other valves. Thus, the inner burner is supplied through the fitting with a constant gas feed, while the outer burner can be supplied with a constantly metered gas feed for minimum power and with a variable gas feed for additional powers up to maximum power, by varying a duct path in the fitting.

Claims10

Dependent claims

A gas burner configuration for cooking areas, comprising:

a multi-ring gas burner including an inner burner with lateral gas/air mixture outlet openings and low combustion power, and an annular outer burner disposed at a spacing from said inner burner and having gas/air mixture outlet openings;
a hand-operated gas fitting for directing, metering, and shutting off combustion gas to be fed to said multi-ring burner, said hand-operated gas fitting having valves, an operating member with an actuating path adjustable to a plurality of setting positions and intermediate positions for said valves, and three gas duct branches to be opened and closed by said valves with said operating member;
two of said three gas duct branches each opening for a given gas throughput, and a further one of said three gas duct branches constructed for a variable gas throughput to be influenced by said operating member and an associated one of said valves;
one of said two gas duct branches having a given gas throughput associated with said inner burner and opened by an associated one of said valves over said entire actuating path starting from a zero position;
and
another two of said three gas duct branches associated with said outer burner and activated by said valves associated therewith through a segment of said actuating path keeping said one of said two gas duct branches open.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/661,069Filed 13 Sep 2000 · continuation in part
Priority: DE 197 57 73323 Dec 1997
Granted: 20 Nov 2001
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

F23D 14/065
With radial outlets at the burner head: with injector axis inclined to the burner head axis
F24C 3/085
Arrangement or mounting of burners: on ranges
F23D 2900/14062
Special features of gas burners: for cooking ranges having multiple flame rings
Y10S 137/905
Fluid handling: rotary valves for multiple gas burners