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:
Nov. 14, 1995
Filed:
Jun. 07, 1994
Applicant:
Inventor:
Martin G Rose, Derby, GB;
Assignee:
Rolls-Royce plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4151821 ; 415914 ;
Abstract
A gas turbine engine turbine is provided with an annular array of nozzle guide vanes which define a radially inner annular platform. The radially outer surface of the platform is configured so as to define a plurality of convex and concave portions. These portions are so arranged as to vary the static pressure of the gases which operationally flow across the vanes in such a manner that the static pressure in the field immediately downstream of the vanes is substantially circumferentially uniform.