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:
Sep. 13, 2022
Filed:
Oct. 21, 2019
Mitsubishi Power, Ltd., Yokohama, JP;
Shigeki Senoo, Tokyo, JP;
Kazuhiro Momma, Yokohama, JP;
Reza Abhari, Zurich, CH;
Anestis Kalfas, Zurich, CH;
Ilias Papagiannis, Zurich, CH;
Vahid Iranidokht, Zurich, CH;
MITSUBISHI POWER, LTD., Yokohama, JP;
Abstract
A turbine blade includes an airfoil portion having a pressure surface and a suction surface each of which extends between a leading edge and a trailing edge, and a platform including an end wall to which a base-end portion of the airfoil portion is connected. The end wall includes a concave portion on suction surface disposed at least in a region of suction surface of the end wall, and a convex portion on pressure surface disposed at least in a region of pressure surface of the end wall. The concave portion on suction surface has a bottom point located on an axially upstream side of a tangent point on the suction surface, the suction surface having a tangential line extending in an axial direction through the tangent point.