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:
Sep. 25, 2007
Filed:
May. 04, 2006
Applicants:
Andrew Birrell, Rieden, CH;
Armin Busekrose, Zurich, CH;
Olatunde Omisore, Nussbaumen, CH;
Inventors:
Assignee:
Alstom Technology Ltd, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Means for driving a flow are arranged in cavities which are formed, in particular, in multishell casings of turbo engines. In one embodiment, within the cavity, ejectors are arranged which are supplied via suitable means with a propellant flow which, in turn, activates the flow, for preference a circumferential flow. Preferably, during the operation of the turbo engine a propelling fluid which is colder than the fluid content of the cavity is injected via the ejectors. In this way, at the same time, the cavity is cooled and an equalization of the temperature of the fluid content of the cavity is brought about.