Turbine blade with cooled shroud abutment surface

Details Turbine blade with cooled shroud abutment surface Turbine blade with cooled shroud abutment surface

1989-08-21

1990-08-14

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Discharge solely at periphery normal to rotation axis

416190, 416189, F01D 522, F01D 518

Patent

active

049483382

ABSTRACT:
A turbine aerofoil blade is provided with a shroud member at its radially outer extent for engagement with the corresponding shroud members of adjacent aerofoil blades. A cooling air duct within the shroud member directs cooling air to the abutment region of the shroud member so as to provide impingement cooling thereof. Ports provided in the cooling air duct direct a flow of cooling air from the duct over the outer surface of the abutment region so as to provide additional cooling thereof.

REFERENCES:
patent: 3182955 (1965-05-01), Hyde
patent: 3527544 (1970-09-01), Allen
patent: 3576377 (1971-04-01), Beanland et al.
patent: 3606574 (1971-09-01), Brands et al.
patent: 3816022 (1974-06-01), Day
patent: 3876330 (1975-04-01), Pearson et al.
patent: 4127358 (1978-11-01), Parkes
patent: 4177011 (1979-12-01), Eskesen et al.

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