Clearance control apparatus for a bladed fluid flow machine

Details Clearance control apparatus for a bladed fluid flow machine Clearance control apparatus for a bladed fluid flow machine

1976-12-01

1989-02-14

Bentley, Stephen C.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415116, 415134, 60 3929, F01D 1108

Patent

active

048043109

ABSTRACT:
In a gas turbine engine the clearance between the tips of a row of rotor blades and the surrounding casing is maintained in a pre-determined range by providing supplies of relatively hot and cold air to passages in the casing. The amount of hot or cold air which is allowed to pass through the passages is controlled by exhausting the flow from the passages through a control clearance which varies in proportion to the size of the clearance to be controlled.

REFERENCES:
patent: 3535873 (1970-10-01), Szydlowski
patent: 3584458 (1971-06-01), Wetzler
patent: 3975901 (1976-08-01), Hallinger et al.
patent: 4023731 (1977-05-01), Patterson

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