Gas turbine engines

Details Gas turbine engines Gas turbine engines

1981-08-25

1982-10-19

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

415136, 415138, F16J 1500, F02F 1100, F04D 2908

Patent

active

043546870

ABSTRACT:
A gas turbine engine blade tip seal consists of a sealing ring which is controlled by means of two annular control members. The members are arranged such that one control member has a relatively rapid thermal response rate and the other control member has a relatively slow thermal response rate, the sealing ring being controlled such that a preferred tip clearance is maintained under varying engine operating conditions.

REFERENCES:
patent: 2962256 (1960-11-01), Bishop
patent: 3321179 (1967-05-01), Johnson et al.
patent: 3514112 (1970-05-01), Pettengill
patent: 3526407 (1970-09-01), Chattin et al.
patent: 3860358 (1975-01-01), Cauicchi et al.
patent: 4184689 (1980-01-01), Brodell et al.

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