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. 08, 2017
Filed:
Sep. 08, 2011
Yoshihiro Kuwamura, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Hiroharu Oyama, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Masaaki Matsuura, Tokyo, JP;
Asaharu Matsuo, Kobe, JP;
Yoshihiro Kuwamura, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Hiroharu Oyama, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Masaaki Matsuura, Tokyo, JP;
Asaharu Matsuo, Kobe, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A turbine includes: a blade body having a blade provided at one of a rotor rotatably supported and a stator provided around the rotor and extending in a radial direction and a shroud extending in a circumferential direction at a tip portion in the radial direction of the blade; and an accommodating concave body provided at another one of the rotor and the stator, extending in the circumferential direction, accommodating the shroud with a gap interposed therebetween, and relatively rotating with respect to the blade body, wherein a leakage flow leaked from a main flow flowing along the blade flows into the gap; and wherein the shroud is provided with a guide curved surface formed between a peripheral surface facing the accommodating concave body and a trailing edge end portion formed closer to a main flow side in a downstream side of the leakage flow than the peripheral surface.