Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Erodable or permanently deformable
Patent
1977-05-27
1979-01-23
Casaregola, Louis J.
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Erodable or permanently deformable
415200, F01D 1108
Patent
active
041358511
ABSTRACT:
A gas path seal suitable for use with a turbine engine or compressor is provided. A shroud wearable or abradable by the abrasion of the rotor blades of the turbine or compressor shrouds the rotor blades. A compliant backing surrounds the shroud. The backing may be made of corrugated sheets or the like with adjacent layers having off-set corrugations, with axes of the folds parallel to the rotor axis. The sheets may be bonded together at points of contact by brazing, welding or the like. In another embodiment a compliant material is covered with a thin ductile layer. A mounting fixture surrounds the backing.
REFERENCES:
patent: 2477852 (1949-08-01), Bacon
patent: 2994124 (1961-08-01), Denny et al.
patent: 3423070 (1969-01-01), Corrigan
patent: 4063742 (1977-12-01), Watkins, Jr.
Bill Robert C.
Ludwig Lawrence P.
Casaregola Louis J.
Holland Donald S.
Manning J. R.
Musial N. T.
Shook G. E.
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