Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Patent
1986-02-26
1991-03-26
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
60 39821, F02G 100
Patent
active
050018965
ABSTRACT:
A crossfire tube assembly joining adjacent combustors in a gas turbine engine includes an impingement sleeve within which a crossfire tube is centrally disposed. The impingement sleeve is pierced by an array of impingement cooling holes which form a plurality of small jets of cooling air impinging upon, and cooling, the crossfire tube. The space between the impingement sleeve and the crossfire tube forms a flow channel along which the spent impingement air flows in the axial direction before exiting into the interiors of the combustors. A flow dam at the center of the flow channel forces the impingement air to flow toward the ends. An outward flare in a portions of the crossfire tube extending beyond the extremity of the impingement sleeve directs air exiting the flow channel upon an annular flange which supports the crossflow assembly and thus improves cooling in this area.
REFERENCES:
patent: 2611243 (1952-09-01), Huyton
patent: 3811274 (1974-05-01), Calderon
patent: 3991560 (1976-11-01), DeCorso et al.
patent: 4249372 (1981-02-01), White
Davis, Jr. Lewis B.
Hilt Milton B.
Casaregola Louis J.
Thorpe T. S.
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