Cooled turbine spar shell blade construction

Details Cooled turbine spar shell blade construction Cooled turbine spar shell blade construction

2006-07-25

2006-07-25

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Discharge solely at periphery normal to rotation axis

C416S09600A, C416S09700R

Reexamination Certificate

active

07080971

ABSTRACT:
A blade for a rotor of a gas turbine engine is constructed with a spar and shell configuration. The spar is constructed in an integral unit or multi-portions and includes a first wall adjacent to the pressure side and a second wall adjacent to the suction side, a tip portion extending in the spanwise direction and extending beyond the first wall and the second wall and a root portion extending longitudinally, an attachment portion having a central opening for receiving the root portion and a platform portion. The root portion fits into the central opening and is secured therein by a pin extending transversely through the attachment and the root portion. The shell fits over the spar and is supported thereto by a plurality of complementary hooks extending from the spar and shell. The ends of the shell fit into grooves formed on the tip portion and the platform.

REFERENCES:
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patent: 5476364 (1995-12-01), Kildea
patent: 5700131 (1997-12-01), Hall et al.
patent: 6422819 (2002-07-01), Tsai et al.

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