Rotor tip clearance control apparatus for a gas turbine engine

Details Rotor tip clearance control apparatus for a gas turbine engine Rotor tip clearance control apparatus for a gas turbine engine

1980-01-21

1982-05-18

Powell, Jr., Everette A.

Rotary kinetic fluid motors or pumps

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

Dynamically created seal

415127, 415138, F01D 1108

Patent

active

043302343

ABSTRACT:
A rotor tip clearance control apparatus for a gas turbine engine comprises an annular shroud member which forms part of the static structure of the apparatus. The shroud member has an internal frusto-conical surface which co-operates with the outer extremities of the rotor to define a small clearance. In order to control this clearance the shroud member is mounted from fixed structure by rotatable eccentrics which can move the member axially and thus affect the clearance in a predetermined manner.

REFERENCES:
patent: 3520635 (1970-07-01), Killmann et al.
patent: 4127357 (1978-11-01), Patterson
patent: 4131388 (1978-12-01), Brodell
patent: 4247247 (1981-01-01), Thebert

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