Thermal actuated valve for clearance control

Details Thermal actuated valve for clearance control Thermal actuated valve for clearance control

1975-10-29

1977-05-17

Croyle, Carlton R.

Automatic temperature and humidity regulation

Thermostatic

In fluid controlled

236101R, 415116, G05D 2302

Patent

active

040237311

ABSTRACT:
A shroud closely surrounding a high thermal inertia rotor is provided with a support structure having low thermal inertia characteristics. The support structure is selectively exposed to different temperature mediums during transient operation by way of a thermal actuated valve so as to cause a rapid growth thereof during periods of engine acceleration and a slow shrinkage thereof during periods of deceleration of the engine. In this manner the clearance relationship between the shroud and enclosed rotor is maintained at a minimum during periods of steady-state and transitional operation to thereby increase the efficiency of the combination.

REFERENCES:
patent: 3575528 (1971-04-01), Beam et al.
patent: 3736069 (1973-05-01), Beam et al.
patent: 3825365 (1974-07-01), Peng

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