Combustor of gas turbine

Details Combustor of gas turbine Combustor of gas turbine

1986-02-26

1987-09-22

Green, Randall L.

Combustion

Flame holder having protective flame enclosing or flame...

Including means feeding air axially spaced points of the flame

431351, 60755, 60756, F23D 1402

Patent

active

046952470

ABSTRACT:
A combustor of a gas turbine having a double wall construction in one part of the combustor, wherein an outer plate is formed with a multiplicity of cooling air inlet apertures and an inner plate is formed with a multiplicity of cooling air outlet apertures. The inner and outer plates are connected together by a multiplicity of connectors formed of heat conductive material and define therebetween a space. The cooling air inlet apertures are greater in diameter but smaller in total area than the cooling air outlet apertures which are inclined at an angle of 30 degrees. Cooling air introduced into the space through the cooling air inlet apertures impinge on the inner surface of the inner plate and performs impinge cooling while the connectors perform pin fin cooling. The cooling air also performs film cooling as it flows along the outer surface of the inner plate after cooling the walls of the cooling air outlet apertures while being released.

REFERENCES:
patent: 2699648 (1955-01-01), Berkey
patent: 2919549 (1960-01-01), Haworth et al.
patent: 3840332 (1974-10-01), Smith
patent: 3898797 (1975-08-01), Wood
patent: 4064300 (1977-12-01), Bhangu
patent: 4104874 (1978-08-01), Carmel et al.
patent: 4567730 (1986-02-01), Scott

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