Liquid-cooled turbine bucket with integral distribution and mete

Details Liquid-cooled turbine bucket with integral distribution and mete Liquid-cooled turbine bucket with integral distribution and mete

1976-02-19

1977-04-12

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

Changing state mass within or fluid flow through working...

416 95, F01D 518

Patent

active

040172104

ABSTRACT:
Unitary turbine bucket construction equipped for liquid cooling thereof independently of other rotor-mounted liquid distribution or metering means is disclosed. The unitary construction comprises an airfoil-shaped core portion (with skin); a platform portion (with skin); a shank portion and a root portion; a plurality of first coolant passages beneath the skin on the pressure and suction faces of the core portion; a plurality of second coolant passages disposed beneath the skin in the platform portion and interconnected with the first coolant passages on a one-to-one basis as sets of coolant passages; a plurality of arcuate gutters integral with the bucket construction located radially inward of the core portion at the leading and trailing edges of the bucket, and holes extending through the gutters in the generally radial direction with each of said holes being in flow communication with a separate one of the sets of coolant passages.

REFERENCES:
patent: 3446481 (1969-05-01), Kydd
patent: 3658439 (1972-04-01), Kydd
patent: 3804551 (1974-04-01), Moore
patent: 3844679 (1974-10-01), Grondahl et al.
patent: 3849025 (1974-11-01), Grondahl
patent: 3856433 (1974-12-01), Grondahl et al.
patent: 3936227 (1976-02-01), Wojcik

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