Device for monitoring clearance between rotor blades and a housi

Details Device for monitoring clearance between rotor blades and a housi Device for monitoring clearance between rotor blades and a housi

1986-02-13

1988-11-29

Garrett, Robert E.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Erodable or permanently deformable

415138, 415177, F01D 1108

Patent

active

047878177

ABSTRACT:
A device for maintaining clearance between rotor blades and a surrounding housing is disclosed in which the device radially expands or contracts to match the expansion or contraction of the rotor blade tips. The expansion or contraction of the device is achieved by thermal transfer between the device and the gasses passing over the rotor blades. The device has several alternating segments having different thermal characteristics such that the expansion/contraction characteristics of the rotor blade can be accurately matched by the device.

REFERENCES:
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patent: 2247423 (1941-07-01), Webster, Jr.
patent: 3425665 (1969-02-01), Lingwood
patent: 3532437 (1970-10-01), Strub
patent: 3860358 (1975-01-01), Cavicchi et al.
patent: 3892497 (1975-07-01), Gunderlock et al.
patent: 3985465 (1976-10-01), Sheldon et al.
patent: 4131388 (1978-12-01), Brodell
patent: 4522559 (1985-06-01), Burge et al.
patent: 4565492 (1986-01-01), Bart et al.
patent: 4642027 (1987-02-01), Popp

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