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. 30, 1989
Filed:
Nov. 07, 1988
Joseph Davids, Maitland, FL (US);
George J Silvestri, Jr, Winter Park, FL (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A segmented turbine vane nozzle assembly for a steam turbine has an inner ring and a plurality of vanes with each vane having a base end and a profile tip and a profile tip trailing edge extension portion and each vane base end being attached to the inner ring and extending radially therefrom. An annular outer ring has a plurality of arcuate grooves of predetermined depth therein. The outer ring is mounted concentrically with the inner ring. Each vane profile tip trailing edge extension portion extends into one outer ring arcuate groove. Each of the vane profile tips leading edge portion is attached to the outer ring so that a vane assembly is formed without welding the profile tip trailing edge of the vanes. This reduces flow leakage and the formation of erosion caused by the formation and release of large droplets. A method of making a segmented turbine vane nozzle assembly is also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile