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. 12, 2008
Filed:
Apr. 23, 2004
Rolf Dittmann, Nussbaumen, CH;
Jonas Hurter, Baden, CH;
Robert Marmilic, Nussbaumen, CH;
Pierre Meylan, Magglingen-Macolin, CH;
Ernst Pauli, Zürich, CH;
Rolf Dittmann, Nussbaumen, CH;
Jonas Hurter, Baden, CH;
Robert Marmilic, Nussbaumen, CH;
Pierre Meylan, Magglingen-Macolin, CH;
Ernst Pauli, Zürich, CH;
ALSTOM Technology Ltd, Baden, CH;
Abstract
Suitable means for driving a flow are arranged in annular or ring-segment-shaped cavities that are formed in particular in multi-shell casings of turbomachines. Arranged inside the cavity are ejectors that are supplied via suitable means with a motive-fluid flow which in turn excites the flow, preferably a circumferential flow or a helical flow. The invention is suitable in particular for avoiding casing distortions when turbomachines are at rest.