Hollow rotor blade for the turbine of a gas turbine engine,...

Details Hollow rotor blade for the turbine of a gas turbine engine,... Hollow rotor blade for the turbine of a gas turbine engine,...

2008-04-01

2008-04-01

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Discharge solely at periphery normal to rotation axis

C416S09700R

Reexamination Certificate

active

07351035

ABSTRACT:
A hollow blade has an internal cooling passage, an open cavity situated at the free end of the blade and defined by an end wall extending over the entire end of the blade and by a rim. The blade includes cooling channels connecting the internal cooling passage and the outside face of the pressure side wall. The pressure side wall presents a projecting end portion whose outside face is inclined relative to the outside face of the pressure side wall. The cooling channels are disposed in the end portion, being parallel to the outside face of the end portion so that they open out into the tip of the end portion towards the free end of the blade.

REFERENCES:
patent: 4424001 (1984-01-01), North et al.
patent: 6494678 (2002-12-01), Bunker
patent: 6527514 (2003-03-01), Roeloffs
patent: 6602052 (2003-08-01), Liang
patent: 6672829 (2004-01-01), Cherry et al.
patent: 6790005 (2004-09-01), Lee et al.
patent: 2002/0182074 (2002-12-01), Bunker

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