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. 30, 2003
Filed:
Mar. 26, 2002
Applicant:
Inventor:
Franz Kreitmeier, Baden, CH;
Assignee:
Alstom (Switzerland) Ltd, Baden, CH;
Primary Examiner:
Int. Cl.
CPC ...
F01D 5/18 ;
U.S. Cl.
CPC ...
F01D 5/18 ;
Abstract
In a method for cooling a turbine ( ), the supply of the cooling medium is regulated in accordance with the third power of the rotor rotational speed. The method is particularly employed in the period while the rotors run down after the termination of the on-load operation of the turbine ( ). The method ensures that cooling takes place according to requirement and a critical phase with respect to vibrations of the long blades can not, as far as possible, be reached.