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:
Aug. 13, 2019
Filed:
Sep. 08, 2016
Mitsubishi Hitachi Power Systems, Ltd., Yokohama-shi, Kanagawa, JP;
Keita Takamura, Yokohama, JP;
Satoshi Hada, Yokohama, JP;
Hidekatsu Atsumi, Yokohama, JP;
Tomofumi Shintani, Yokohama, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A blade has a blade, passage extending in a blade height direction, a platform passage formed inside a platform, and a communication passage leading from an outer surface of a shaft-mounted part through the platform passage to the blade passage. An inner surface defining an inflow passage portion of the platform passage includes a shaft-side inner surface that faces a gas path side. The shaft-side inner surface spreads in a direction having more of a component of a blade thickness direction than a component of the blade height direction. An inner surface defining the communication passage joins to the shaft-side inner surface.