Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-03-20
2007-03-20
Tamai, Karl (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S052000, C310S058000, C310S089000, C417S366000, C417S373000
Reexamination Certificate
active
10894970
ABSTRACT:
A turbomachine for low-temperature applications, has a rotor shaft; at least one rotor disk that is arranged in overhung manner at one shaft end of the rotor shaft; an electric machine having a stator having windings, and an electric rotor arranged on the rotor shaft; a stage housing that surrounds the rotor disk and has connections for a cold gas that flows through the stage housing; and a machine housing in which the electric machine and shaft bearings for the rotor shaft are arranged. The machine housing is connected with the stage housing. A partition made of insulating material is arranged between the stage housing and the machine housing, which thermally separates the stage housing from the machine housing. A line provided with a flow-through regulation fitting is connected to the flow path of the cold gas, for branching off an amount-regulated cooling stream, which is passed to the electric machine within the machine housing.
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Atlas Copco Energas GmbH
Collard & Roe P.C.
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