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

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

Including thermal expansion joint

415178, 415174, F01D 2524

Patent

active

040239195

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: 2962256 (1960-11-01), Bishop
patent: 3575528 (1971-04-01), Beam, Jr. et al.
patent: 3583824 (1971-06-01), Smulund
patent: 3736069 (1973-05-01), Beam, Jr. et al.
patent: 3807891 (1974-04-01), McDow et al.
patent: 3814313 (1974-06-01), Beam, Jr. et al.
patent: 3825365 (1974-07-01), Peng

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