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. 22, 1992
Filed:
Apr. 26, 1990
Jean-Pierre Gros, Villemomble, FR;
Patrick Laffont, Privas, FR;
GEC Alsthom SA, Paris, FR;
Abstract
The HP-MP steam turbine body has a single internal stator surrounding both the HP and the MP portions of the rotor. The internal stator co-operates with the external stator to define axial positioning means for the internal stator and to define a thermal screen for an inter-stator space which is swept with steam taken from one of the last stages of the HP stream. The portions of the internal stator which surround all of the expansion of the HP stream and the hot stages of the MP stream are steam-conditioned in optimum manner, thereby making it possible to reduce the temperature gradient which the internal stator has to withstand, and also the temperature of the fastenings for both of the stators. The internal stator is simple in structure, the dimensioning of the HP-MP body is optimized, as are the fastenings, and the temperature control of the stators.