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:
Feb. 22, 2011
Filed:
Jun. 20, 2007
Thomas Schoenemann, Schafisheim, CH;
Jochen Kiefer, Nussbaumen, CH;
Patrick Huguenot, Zurich, CH;
Max Claessens, Gebenstorf, CH;
Stephan Grob, Baden, CH;
Xiangyang YE, Kunten, CH;
Thomas Schoenemann, Schafisheim, CH;
Jochen Kiefer, Nussbaumen, CH;
Patrick Huguenot, Zurich, CH;
Max Claessens, Gebenstorf, CH;
Stephan Grob, Baden, CH;
Xiangyang Ye, Kunten, CH;
ABB Technology AG, Zurich, CH;
Abstract
The disclosure relates to an electrical switching device, e.g., a generator circuit breaker, and to a method for improved switching-gas cooling. Gas jets are formed by a nozzle body in the exhaust area, are directed against a baffle wall and are swirled. The baffle wall is a component of the switching chamber enclosure and has a high thermal capacity and/or thermal conductivity, so that the switching gas vortices produce a highly efficient switching gas cooling on the baffle wall by turbulent convection. Exemplary embodiments relate inter alia to the design of the baffle wall and of the nozzle body. Advantages include: protection of the switching chamber enclosure against hot gases, improved switching gas cooling, and increased breaking capacity.