The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 20, 2007
Filed:
Jul. 20, 2004
Werner Bosen, Köln, DE;
Werner Bosen, Köln, DE;
Atlas Copco Energas GmbH, Köln, DE;
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.