US Patent:
20020136631, Sep 26, 2002
Inventors:
Scott Zearbaugh - Milford OH, US
Steven Brickner - Cincinnati OH, US
James Hackler - Mason OH, US
Lonnie Chadwell - Cincinnati OH, US
International Classification:
F01D011/24
US Classification:
415/116000, 415/173200, 415/176000, 029/889200
Abstract:
A gas turbine engine including an active clearance control system that facilitates extending a useful life of a rotor assembly in a cost effective and reliable manner is described. The engine includes at least one rotor assembly and an engine casing that extends circumferentially around the rotor assembly, such that a tip clearance is defined between the rotor assembly and the engine casing. The clearance control system includes a plurality of panels that couple to extend circumferentially around the engine. Each clearance control system panel includes a circumferential feed duct that is formed integrally with the panel.
