Gas turbine having a sealing structure

Details Gas turbine having a sealing structure Gas turbine having a sealing structure

2005-12-27

2009-06-23

Verdier, Christopher (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Multiple axially spaced working members

C416S095000, C277S630000, C277S637000, C277S640000, C411S549000

Reexamination Certificate

active

07549845

ABSTRACT:
In a gas turbine, annular overhang portions are formed on adjacent surfaces of a plurality of rotor discs so as to face each other, surrounding the rotor axis, groove portions are provided circumferentially to the surfaces of the overhang portions facing each other, and sealing structures are annularly installed to the inside of the groove portions. The gas turbine comprises sealing plate assemblies which include the overhang portions, the groove portions and a plurality of plates being formed annularly by being mutually piled up; and detachable retaining members which are provided so as to fix the overhang portions and the sealing plate assemblies together by way of disc engagement portions provided to the overhang portions and sealing plate engagement portions provided to the sealing plate assemblies.

REFERENCES:
patent: 3486205 (1969-12-01), Smith
patent: 3801220 (1974-04-01), Beckershoff
patent: 4274805 (1981-06-01), Holmes
patent: 4314793 (1982-02-01), DeTolla et al.
patent: 5865600 (1999-02-01), Mori et al.
patent: 6315301 (2001-11-01), Umemura et al.
patent: 6692228 (2004-02-01), Turnquist et al.
patent: 2 287 509 (1999-09-01), None
patent: H09-133005 (1997-05-01), None
patent: H11-247999 (1999-09-01), None

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