Air metering device for gas turbine engine

Details Air metering device for gas turbine engine Air metering device for gas turbine engine

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 7/28 (2006.01) F01D 25/14 (2006.01) F01D 25/24 (2006.01) F01D 25/28 (2006.01) F02C 7/12 (2006.01)

Patent

CA 2715598

An air metering apparatus for a secondary air system of gas turbine engine includes a metering gap defined between surfaces comprised of one or more metals having one of similar coefficients of thermal expansion or similar thermal expansions at an operating temperature. Provided is an air metering gap which undergoes thermal growth in a way which provides a suitable air metering gap during engine running conditions.

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