Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means
Patent
1994-12-14
1996-05-07
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
416193A, F01D 518
Patent
active
055139558
ABSTRACT:
An apparatus for sealing a gap between adjacent blades in a rotor assembly for a gas turbine engine is provided. The rotor assembly includes a plurality of blades circumferentially disposed around a disc. Each of the blades includes an airfoil, a root, and a platform extending outward in a lateral direction in a transition area between the root and the airfoil. The disc includes a plurality of complementary recesses circumferentially distributed around the disc for receiving the blade roots. The gaps are formed between edges of adjacent platforms. The platforms collectively form a flow path for primary fluid flow passing by the airfoil side of the platforms and secondary fluid flow passing by the root side of the platforms. The apparatus comprises a thin plate body and apparatus for conducting secondary flow between the thin plate body and root side surfaces of adjacent blade platforms, and thereafter into the gap. The secondary flow traveling between the thin plate body and the root side surfaces transfers thermal energy away from the platforms.
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Getz Richard D.
Larson James A.
Look Edward K.
United Technologies Corporation
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