Cooled turbine blade

Details Cooled turbine blade Cooled turbine blade

2005-04-05

2005-04-05

Lopez, F. Daniel (Department: 3745)

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

C415S116000, C416S09700R

Reexamination Certificate

active

06874987

ABSTRACT:
A gas turbine engine turbine blade (20) has cooling air holes (38) arranged in groups, the holes (38) in one group and which span that part of the leading edge (34) that spans the hottest part of the blade (20), are more closely spaced than the remainder of the holes (38), thereby ensuring the provision of the most cooling air, where it is most needed.

REFERENCES:
patent: 3527543 (1970-09-01), Howald
patent: 4257737 (1981-03-01), Andress
patent: 5117626 (1992-06-01), North et al.
patent: 5348446 (1994-09-01), Lee et al.
patent: 5370499 (1994-12-01), Lee
patent: 5624231 (1997-04-01), Ohtomo
patent: 5741117 (1998-04-01), Clevenger et al.
patent: 5816777 (1998-10-01), Hall
patent: 5857837 (1999-01-01), Zelesky et al.
patent: 1188401 (1970-04-01), None

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