Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Labyrinth seal
Patent
1997-11-12
2000-05-16
Look, Edward K.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Labyrinth seal
4151731, 4151734, 4151735, 4151736, 415189, 415190, F01D 1102
Patent
active
060628138
ABSTRACT:
A bladed rotor and surround assembly comprising an annular casing, a bladed rotor element that is rotatable about an axis concentrically within the casing, and an annular shroud liner. The shroud liner, typically made up of an annular array of circumferentially abutting shroud liner segments, is disposed within the casing in an annular radial space defined between the casing and an outer circumference of the bladed rotor. The shroud liner segments have location members to locate each segment within the casing. The location members and the annular radial space are configured to enable axial insertion of the shroud liner segment between the bladed rotor and the casing. In addition the location members and the annular radial space allow a limited amount of radial translation of the shroud segment during insertion. The location members also provide a positive radial location to prevent radial translation of the shroud segment once each shroud segment is in a final assembled position.
REFERENCES:
patent: 3067983 (1962-12-01), Koziura
patent: 3823553 (1974-07-01), Smith
patent: 4796423 (1989-01-01), Lievestro et al.
patent: 5064343 (1991-11-01), Mills
patent: 5201846 (1993-04-01), Sweeney
patent: 5232340 (1993-08-01), Morgan
patent: 5407320 (1995-04-01), Hutchinson
Halliwell Mark A
Morris Steven B
Schiebold Harald
Look Edward K.
Nguyen Ninh
Rolls-Royce plc
Taltavull W. Warren
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