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:
Mar. 28, 2006
Filed:
Oct. 10, 2001
Shigeki Senoo, Hitachi, JP;
Yoshio Sikano, Hitachinaka, JP;
Eiji Saitou, Hitachi, JP;
Kiyoshi Segawa, Hitachi, JP;
Sou Shioshita, Hitachinaka, JP;
Shigeki Senoo, Hitachi, JP;
Yoshio Sikano, Hitachinaka, JP;
Eiji Saitou, Hitachi, JP;
Kiyoshi Segawa, Hitachi, JP;
Sou Shioshita, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The invention is intended to reduce the profile loss. For that purpose, according to the invention, a plurality of turbine blades are arranged in the circumferential direction of a turbine driven by a working fluid. Each of the turbine blade is formed such that the curvature of a blade suction surface, which is defined by the reciprocal of the radius of curvature of a blade surface on the blade suction surface side, is decreased monotonously from a blade leading edge defined as the upstream-most point of the blade in the axial direction toward a blade trailing edge defined as the downstream-most point of the blade in the axial direction.