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:
Jun. 11, 1996
Filed:
Mar. 23, 1995
Applicant:
Inventors:
Erhard Kreis, Otelfingen, CH;
Pierre Meylan, Neuenhof, CH;
Assignee:
ABB Management AG, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
415-1 ; 415115 ; 415175 ;
Abstract
In a process for operating a fluid flow engine, a conditioning medium is conducted through the rotor, which consists of several shaft parts (1, 2) welded together; this medium is capable of evening out the temperature difference established between the stator (3) and the rotor in the transient operating ranges, depending on whether heating or cooling of the rotor is suited to the characteristic curve of the stator temperature course.