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:
Jul. 10, 2001
Filed:
Sep. 24, 1999
Applicant:
Inventors:
Joachim Bremer, Zürich, CH;
Michajlo Bothien, Waldshut-Tiengen, DE;
Jürg Greber, Wettingen, CH;
Ulf Christian Müller, Kirchdorf, CH;
Dirk Wunderwald, Baden, CH;
Helmut Gieszauf, Nussbaumen, CH;
Assignee:
Asea Brown Boveri AG, Baden, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 2/958 ;
U.S. Cl.
CPC ...
F04D 2/958 ;
Abstract
A method of cooling the flow in radial gaps formed between rotors and stators turbo machines is provided. The method includes the step of using water as a cooling fluid for the stator part adjacent to the radial gap. To this end, either at least one recess is formed in the interior of the stator part adjacent to the radial gap or at least one cavity is arranged at the stator part. The recess or the cavity is connected to both a feed line and a discharge line for the cooling fluid.