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:
Jul. 12, 2016
Filed:
Jan. 31, 2011
Yoshihiro Kuwamura, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Hiroharu Oyama, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Asaharu Matsuo, Kobe, JP;
Yoshihiro Kuwamura, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Hiroharu Oyama, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Asaharu Matsuo, Kobe, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Yokohama-shi, JP;
Abstract
A turbine () of the present invention comprises that at one part of a tip part () of the blade () and an area (a) of the structure () corresponding to the tip part () of the blade, a stepped part () is formed, a seal fin () is provided at the another part of the tip part () of the blade and the area (a) of the structure (), a cavity (C) is formed between the tip part () of the blade and the area (a) of the structure () and between the seal fin () and a partition wall (). The seal fin () comprises a fin main body part (), and a space restriction part (). Thus, the present invention provides a high performance turbine in which the leakage flow rate is reduced.