Device for stabilizing the position of rotors of large steam tur

Details Device for stabilizing the position of rotors of large steam tur Device for stabilizing the position of rotors of large steam tur

1976-09-22

1977-09-27

Husar, C. J.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Means to seal radial flow pump runner inlet from outlet

415107, 415119, 415219R, 308 9, F01D 520, F04D 2966

Patent

active

040508455

ABSTRACT:
A steam turbine having a rotor and a stator, the rotor having rotor blade rings at the outer periphery thereof and the stator having a carrier for vanes interposed between the rotor blade rings respectively in axial direction of the rotor, the rotor blade rings having respective shroud bands at the radially outer periphery thereof, the shroud bands and the stator carrier defining gaps therebetween, a device for stabilizing the position of the rotor includes means for enlarging at least a part of the radial gaps, respectively, the means having channels of substantially circular cross section each extending in the form of a crescent in peripheral direction of the turbine over at least an upper half of the turbine.

REFERENCES:
patent: 930907 (1909-08-01), Westinghouse
patent: 941395 (1909-11-01), Westinghouse
patent: 1999711 (1935-04-01), Zetterquist
patent: 2045918 (1936-06-01), Moody
patent: 3037457 (1962-06-01), Sternlicht
patent: 3110527 (1963-11-01), Fox
patent: 3290004 (1966-12-01), Ishibashi

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