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:
Jun. 11, 2019
Filed:
Jan. 29, 2015
Mitsubishi Hitachi Power Systems, Ltd., Kanagawa, JP;
Toyoharu Nishikawa, Tokyo, JP;
Yoshihiro Kuwamura, Tokyo, JP;
Hiroharu Oyama, Tokyo, JP;
Yoshinori Tanaka, Tokyo, JP;
Shin Nishimoto, Tokyo, JP;
Kazuyuki Matsumoto, Tokyo, JP;
Hidekazu Uehara, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A seal structure () for sealing a gap between a first structure body () and a second structure body (). The seal structure includes: a peripheral surface formed on one of the first structure body and the second structure body; a plurality of seal fins () provided at intervals in the axial direction so as to form clearances (m) together with the peripheral surface and protrusions that form re-adhesion edges between pairs of axially adjacent seal fins; the re-adhesion edges being locations at which leak currents (SL) re-adhere that have passed through a clearance (mA) of an upstream seal fin; and the protrusions forming first cavities in which eddies (B) are created that flow along the upstream seal fin toward the second structure body, and second cavities in which currents (B) are created that cause a contraction current effect on a clearance (mB) of a downstream seal fin.