Device for regulating turbine blade tip clearance

Details Device for regulating turbine blade tip clearance Device for regulating turbine blade tip clearance

1975-07-22

1976-08-24

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

Different fluids

60 3966, 415115, 415117, F02C 718

Patent

active

039759016

ABSTRACT:
A device for automatically regulating the clearance between the tips of the otor blades of a turbine, particularly of a gas turbine, and the adjacent wall of a turbine stator, comprising means for directing a gaseous flow against the said wall to regulate its temperature. This gaseous flow is obtained from a proportioner including at least two inlet passages connected to sources of gas at different temperatures and controlled by the thermal expansion of an obturator responsive to the temperature of fluid passing through the turbine, so as to reduce the temperature of the said gaseous flow as the obturator expands, in order to cool the stator in stable conditions and to heat it in transitory conditions.

REFERENCES:
patent: 3169366 (1965-02-01), Clark et al.
patent: 3583824 (1971-06-01), Smuland et al.
patent: 3584458 (1971-06-01), Wetzler
patent: 3736069 (1973-05-01), Beam et al.

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