Double walled impingement cooled combustor

Details Double walled impingement cooled combustor Double walled impingement cooled combustor

1975-02-21

1978-08-29

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

External-combustion engine type

431352, F02C 718

Patent

active

041094590

ABSTRACT:
A combustor for use in a gas turbine engine is provided with a first wall defining a combustion zone; an outer casing partially defining a cooling plenum about the first wall; a second wall spaced apart from the first wall and defining together therewith a second plenum, the second wall bearing a plurality of perforations for passing fluid from the first plenum in impinging streams upon the first wall; and a plurality of ribs extending between the first and second walls and compartmentalizing the second plenum. The ribs add substantial stiffness to the combustor as well as providing for independently controlled cooling of the substantially isolated compartments formed thereby. The impinging streams provided by the perforations in the second wall substantially increase local fluid velocities and conductive heat transfer.

REFERENCES:
patent: 2958194 (1960-11-01), Bayley
patent: 3349558 (1967-10-01), Smith
patent: 3369363 (1968-02-01), Campbell
patent: 3570241 (1971-03-01), Alexander
patent: 3777484 (1973-12-01), Dibelius et al.
patent: 3826082 (1974-07-01), Smuland et al.

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