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. 06, 2010
Filed:
Sep. 22, 2005
Mizuho Aotsuka, Tokorozawa, JP;
Hiroshi Hamazaki, Iruma, JP;
Akira Takahashi, Kawasaki, JP;
Haruyuki Tanimitsu, Tokyo, JP;
Mizuho Aotsuka, Tokorozawa, JP;
Hiroshi Hamazaki, Iruma, JP;
Akira Takahashi, Kawasaki, JP;
Haruyuki Tanimitsu, Tokyo, JP;
Abstract
A wall configuration of an axial-flow machine which can reduce the secondary flow loss is provided. A trough is formed between a blade and another blade in the blade row and extends in at least an axial direction of the blade row. The region where the trough is formed is axially between a leading edge and a trailing edge of the blade. A center line of the trough has a curvature in the same direction as a camber line of the blade. A maximum amplitude of the trough is located adjacent to an axial center of the blade or located axially between the axial center and the leading edge of the blade.