Combustor bulkhead heat shield assembly

Details Combustor bulkhead heat shield assembly Combustor bulkhead heat shield assembly

1988-10-12

1990-06-19

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Combustion products generator

60740, F23R 302

Patent

active

049341456

ABSTRACT:
A segmented heat shield (36) is provided for an annular combustor bulkhead (20). The shield segments (38) define a backside cooling volume (44) which receives a flow of cooling air (66) for protecting the shield segment (38) from the high temperature combustion reaction (34). A region of extended heat transfer surface (68) on the shield backside (42) increases heat transfer effectiveness, while backside raised ridges (60, 62, 64) direct the cooling air (66) for achieving a more even distribution before being exhausted (50) adjacent the combustor liners (12, 14).

REFERENCES:
patent: 3735930 (1973-05-01), Mori
patent: 3853273 (1974-12-01), Bahr et al.
patent: 3866413 (1975-02-01), Sturgess
patent: 3899884 (1915-08-01), Ekstedt
patent: 3901446 (1975-08-01), Petreikis, Jr. et al.
patent: 4162611 (1979-07-01), Caruel et al.
patent: 4180974 (1980-01-01), Stenger et al.
patent: 4365470 (1982-12-01), Matthews et al.

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