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:
May. 03, 1994
Filed:
Jan. 07, 1993
Applicant:
Inventors:
Jean-Pierre Gros, Villemomble, FR;
Guillaume Verschaeve, St Jean de Braye, FR;
Assignee:
GEC Alsthom SA, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ;
U.S. Cl.
CPC ...
4162 / ; 4151737 ; 4161 / ;
Abstract
A drum rotor for an impulse steam turbine having moving wheels constituted by rotor blades whose roots are provided with dovetails are locked in dovetail shaped grooves formed in the rotor. The grooves are longitudinal over at least a portion of the rotor. The roots of the blades of a moving wheel are separated from the roots of the blades of an adjacent moving wheel by dovetail shaped spacers. An optimum filling of the longitudinal grooves is effected for better interconnection of the caps of the rotor blades.