Claims
- 1. An apparatus for combusting fuel, the apparatus comprising:
- at least one combustion chamber wall forming a combustion chamber, primary means for forming a premixed fuel and primary oxidant mixture which is so fuel-enriched that the premixed fuel and primary oxidant mixture cannot burn under fuel and primary oxidant conditions within a first zone of the combustion chamber; and
- said at least one combustion chamber wall having a plurality of ports peripherally surrounding said inlet, and secondary means for introducing a second supply of oxidant into the combustion chamber through said port and forming a plurality of secondary oxidant jets that draw the premixed fuel and primary oxidant mixture through the first zone and into a second zone of the combustion chamber combust the premixed fuel and primary oxidant mixture in the second zone and form a stabilized combustion flame anchored about a periphery of the secondary oxidant jets.
- 2. An apparatus according to claim 1 wherein each said port is shaped arcuate along a centerline of said port.
- 3. An apparatus according to claim 2 wherein said inlet has a circular cross section with a center, each said port has a radius, and said radius is at a distance from said center.
- 4. An apparatus according to claim 2 wherein each said port is positioned askew with respect to a curvature of a periphery of said inlet.
- 5. An apparatus according to claim 1 wherein each said port has a swaged entry region.
- 6. An apparatus according to claim 1 wherein there are four said ports.
- 7. An apparatus according to claim 1 wherein each said port has an approximately uniform width.
- 8. An apparatus according to claim 1 wherein two opposing end portions of each said port are rounded.
CROSS REFERENCE TO RELATED APPLICATIONS
This is a continuation-in-part patent application of patent application having Ser. No. 08/625,926, filed Apr. 1, 1996, now U.S. Pat. No. 5,681,159, which issued Oct. 28, 1997 which is a continuation of patent application having Ser. No. 08/212,177, filed Mar. 11, 1994, now abandoned.
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Continuations (1)
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Continuation in Parts (1)
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625926 |
Apr 1996 |
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