Lean direct injection atomizer for gas turbine engines
3 Assignments
0 Petitions
Accused Products
Abstract
A lean direct injection fuel nozzle for a gas turbine is disclosed which includes a radially outer main fuel delivery system including a main inner air swirler defined in part by a main inner air passage having a radially inner wall with a diverging downstream surface, an intermediate air swirler radially inward of the main inner air swirler for providing a cooling air flow along the downstream surface of the radially inner wall of the main inner air passage, and a radially inner pilot fuel delivery system radially inward of the intermediate air swirler.
55 Citations
40 Claims
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1-35. -35. (canceled)
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36. A method of injecting fuel into a gas turbine comprising the steps of:
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a) providing an inboard pilot combustion zone; b) providing a main combustion zone outboard of the pilot combustion zone; and c) mechanically separating the main combustion zone from the pilot combustion zone in such a manner so as to delay mixing of hot combustion products from the pilot combustion zone into the main combustion zone. - View Dependent Claims (37, 38, 39)
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40-44. -44. (canceled)
Specification