Turbine rotor blade and turbine

Details Turbine rotor blade and turbine Turbine rotor blade and turbine

2007-02-27

2007-02-27

Edgar, Richard A. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

C416S21900R, C029S889210

Reexamination Certificate

active

11211519

ABSTRACT:
A set of turbine rotor blades is arranged on a rotor disk. Each rotor disk has blade profile, root parts which is fitted axially in an axial disk groove formed circumferenctially in the rotor disk, and an integral cover formed at the outer edge of the blade profile part. A front end surface, faced in a direction the rotor disk rotates, of the integral cover is inclined to a direction in which the root part of the turbine rotor blade is fitted in the disk groove of the rotor disk. The sum of circumferential lengths of the integral covers is greater than a circle at which the integral covers are joined to the blade profile parts. Adjacent integral covers are brought into contact with each other by the blade profile parts that are twisted when root parts of the turbine rotor blades are fitted axially in the disk grooves.

REFERENCES:
patent: 2004/0165989 (2004-08-01), Caruso et al.
patent: 01087804 (1989-03-01), None
patent: 05-098906 (1993-04-01), None

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