Importance

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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.

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First Claim