Superconducting device with a cold head of a refrigeration unit with a thermosyphon effect thermally coupled to a rotating superconducting winding

US7272938B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Michael Frank · Erlangen, DE
• Wolfgang Nick · Nürnberg, DE
• Peter van Hasselt · Erlangen, DE

Key dates

• Filing date: Mar 12, 2003
• Grant date: Sep 25, 2007
• Expiry date: May 21, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E40/60
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

The superconducting winding comprises a rotor which may rotate about a rotation axis with a superconducting winding in a thermally conducting winding support. The winding support comprises a central coolant cavity, with a lateral cavity leading out of the winding support connected thereto. A cold head of a refrigeration unit is connected to a condenser unit for condensing refrigerant and is arranged outside the rotor. A fixed heat tube, supplying the refrigerant, is coupled to the condenser unit, extending axially into the rotating lateral cavity and is sealed relative to the cavity. The refrigerant is a mixture of several components having different condensation temperatures.