Turbomachine for low temperature applications

Details Turbomachine for low temperature applications Turbomachine for low temperature applications

2007-10-09

2007-10-09

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Temperature or fluid force responsive member

C415S149100, C415S116000, C415S180000

Reexamination Certificate

active

11452587

ABSTRACT:
A turbomachine for low-temperature applications has a housing, a rotor shaft disposed in the housing, an impeller disposed on one shaft end of the rotor shaft, to which a cold gas is applied, and an electrical machine integrated into the housing. During operation of the turbomachine, a cold zone (K) forms within the housing, in the impeller-side end, and a warm zone (W) forms at the end facing away from the impeller. The housing has at least two compressed gas connectors for a compressed gas, of which one connector is disposed in the cold zone (K), and the other is disposed in the warm zone (W). A control device establishes the flow-through direction for the compressed gas based on temperatures in the cold and warm zones, and controls valve devices on the compressed gas connectors accordingly.

REFERENCES:
patent: 4792278 (1988-12-01), Emerson
patent: 5980218 (1999-11-01), Takahashi et al.
patent: 6464469 (2002-10-01), Grob et al.
patent: 7186093 (2007-03-01), Goshi
patent: 103 10 677 (2004-10-01), None

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