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:
Apr. 10, 2001
Filed:
Oct. 01, 1999
Applicant:
Inventors:
Karl-Heinrich Müller, Rheinberg, DE;
Wilfried Ulm, Mülheim an der Ruhr, DE;
Ralf Bell, Kerken, DE;
Volker Simon, Mülheim an der Ruhr, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 1/02 ; F03B 1/04 ;
U.S. Cl.
CPC ...
F01D 1/02 ; F03B 1/04 ;
Abstract
The invention relates to a steam turbine (,) which has a flow duct (,) with a wall (,). Blading (,) is arranged in blading rings (,) in the flow duct (,). The wall (,) of the flow duct (,) has a grooved structure (,) which purposefully influences the flow of an active fluid (,) through the flow duct (,). In particular, a spacing surface (,) with a grooved structure (,) is located between each two blades or vanes (,) of a blading ring (,). The invention also relates to a blade or vane for a steam turbine.