Rotor blade cover adapted to facilitate moisture removal

Details Rotor blade cover adapted to facilitate moisture removal Rotor blade cover adapted to facilitate moisture removal

1992-08-04

1993-11-16

Kwon, John T.

Rotary kinetic fluid motors or pumps

Including means for handling portion separated from working...

Moisture or liquid separated from gaseous working fluid...

4151693, 4151694, 416191, F01D 2532

Patent

active

052617858

ABSTRACT:
In a steam turbine cover (18) for an axial flow steam turbine including a rotor (14), an annular row of radially extending blades (12) carried by the rotor, each blade having a leading edge (150 or 250), a trailing edge and a radial tip, at least one moisture removal groove (146 or 246) extending radially along the blade adjacent the leading edge (150 or 250), and an annular cover assembly coupling the radial tips of the annular row of blades, there is provided a plurality of circumferentially spaced, axially extending notches (158, 160 or 260) formed in the annular entrance edge (134 or 234) of the cover assembly, one notch for each blade, the notch radially exposing the leading edge and moisture removal groove of each such blade.

REFERENCES:
patent: 1349886 (1920-08-01), Junggren
patent: 3290004 (1966-12-01), Ishibashi
patent: 3304056 (1967-02-01), Sohma
patent: 3751182 (1973-08-01), Brown
patent: 4195396 (1980-04-01), Blazek
patent: 4257742 (1981-03-01), Ogata et al.
patent: 4400915 (1983-08-01), Arrigoni
patent: 4688992 (1987-08-01), Kirkpatrick
patent: 4710102 (1987-12-01), Ortolano

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