Closed-circuit steam-cooled bucket with integrally cooled shroud

Details Closed-circuit steam-cooled bucket with integrally cooled shroud Closed-circuit steam-cooled bucket with integrally cooled shroud

1992-11-20

1994-09-27

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Air and watercraft propellers

416 95, 416 97R, F01D 518

Patent

active

053502779

ABSTRACT:
The bucket 10 of a gas turbine includes first and second steam supply passageways 32 and 34 for directing cooling steam radially outwardly along the bucket. Steam return passageways 40, 42 and 44 lie adjacent the trailing edge for returning cooling steam to its source. A shroud is disposed at the bucket tip and has cross-over passages communicating the supply steam from the first and second passageways to the fifth, third and fourth passageways, respectively.

REFERENCES:
patent: 2920865 (1960-01-01), Lombard
patent: 3051439 (1962-08-01), Hilton
patent: 4073599 (1978-02-01), Allen et al.

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