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:
May. 05, 2009
Filed:
Apr. 15, 2004
Michael Frank, Uttenreuth, DE;
Adolf Kühn, Röthenbach, DE;
Peter Van Hasselt, Erlangen, DE;
Siemens Aktiengesellschaft, München, DE;
Abstract
The machine device comprises a motor () with a rotor () rotating about an axis (A), the superconducting winding of which is coupled with thermal conduction to a central refrigerant cavity (). The cavity () forms a single-tube system, together with the line sections () laterally connected thereto and a condenser chamber () of a refrigeration unit, located outside the motor (), in which a refrigerant (k, k') circulates as result of a thermal siphon effect. According to the invention, the refrigerant supply to the central cavity () is maintained, even with inclined positions (d) for the rotor (), whereby pressurization means are provided, which generate pressure pulses of gaseous refrigerant, acting on the liquid refrigerant (k) in the condenser chamber () or the connected line sections ().