Apparatus for sealing joints of a steam turbine shell

Details Apparatus for sealing joints of a steam turbine shell Apparatus for sealing joints of a steam turbine shell

1985-03-21

1987-05-19

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

Resilient

415101, F01D 1100

Patent

active

046663690

ABSTRACT:
Apparatus for sealing a joint between two components of a fluid turbine comprises a member having a surface contour conforming to at least a portion of a first mateable surface of one component, a biasing element for urging the member against the first mateable surface and a relieved feature terminating in a second mateable surface of the other component so that portions of the first and second mateable surfaces may sealingly engage. The apparatus may be disposed in the radially inward portion of a turbine shell and the area around the member may be relieved to accommodate unequal circumferential expansion between the radially inner and outer portion of the shell while maintaining sealing engagement between the first and second mateable surfaces.

REFERENCES:
patent: 1352278 (1920-09-01), Junggren
patent: 2651496 (1953-09-01), Buckland et al.
patent: 3724969 (1973-04-01), Shulock
patent: 4243233 (1981-01-01), Arai

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