Fluidtight labyrinth seal for a turbo-machine

Details Fluidtight labyrinth seal for a turbo-machine Fluidtight labyrinth seal for a turbo-machine

1984-11-30

1986-04-08

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277181, 277190, F16J 1544

Patent

active

045807922

ABSTRACT:
A turbo-machine comprises means for securing a fluidtight seal to the shaft thereof including a segment in the shape of a sector of a ring located in a groove formed in the wall of the shaft, the groove and the sector being of complementary shape. The radially outer surface of the sector is in tight contact with the radially inner surface of a part of the seal carrying lips which in turn provide a sealing effect by close proximity to an opposed surface of the seal on another part of the turbine. The segment is made rigid with the shaft by detachable means which pass through the lip carrying member and into the sector. In order to prevent both axial and rotational motion of the sector relatively to the groove, the mating surfaces are toroidal and eccentric with respect to the common axis of the segment and of the shaft.

REFERENCES:
patent: 3353245 (1967-11-01), Madson
patent: 3464708 (1969-09-01), Hamilton
patent: 3897169 (1975-07-01), Fowler
patent: 4114902 (1978-09-01), Orlowski
patent: 4173252 (1979-11-01), Sakaki
patent: 4422651 (1983-12-01), Platts
patent: 4436311 (1984-03-01), Brandon
patent: 4466620 (1984-08-01), Orlowski
patent: 4531746 (1985-07-01), Amdall

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