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:
Jun. 05, 2012
Filed:
Apr. 15, 2008
Toyotaka Sonoda, Saitama, JP;
Martina Hasenjaeger, Offenbach, DE;
Toyotaka Sonoda, Saitama, JP;
Martina Hasenjaeger, Offenbach, DE;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An axial-flow gas turbine engine includes a plurality of inlet guide vanes (V) which are radially disposed in an annular gas passage defined between an inner peripheral wall (Ch) and an outer peripheral wall (Ct) of a turbine. The inner peripheral wall (Ch) of the gas passage includes inner peripheral concave portions (Ccand Cc) on an upstream side, and inner peripheral convex portions (Cvand Cv) on a downstream side. The outer peripheral wall (Ct) of the gas passage includes outer peripheral convex portions (Cvand Cv) on an upstream side, and outer peripheral concave portions (Ccand Cc) on a downstream side. Therefore, a pressure difference in a radial direction of the inlet guide vane V is reduced or partially reversed, and a secondary flow toward an inner side in the radial direction can be suppressed to reduce pressure loss.