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:
May. 19, 2020
Filed:
Aug. 16, 2017
Mitsubishi Hitachi Power Systems, Ltd., Nishi-ku, Yokohama, JP;
Yasuhiro Horiuchi, Yokohama, JP;
Shinichi Higuchi, Yokohama, JP;
Hisato Tagawa, Yokohama, JP;
Kenji Shingai, Yokohama, JP;
Takemitsu Miura, Yokohama, JP;
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Abstract
In a gas turbine in which a seal member seals a gap between a transition piece and a nozzle end wall in a turbine first stage, the transition piece and the nozzle end wall has a seal groove. The seal member includes a hook portion that slides in the turbine radial direction with respect to the flange and a seal plate portion inserted in the groove. The groove and the portion are configured to include a surface contact region in which a surface of the groove and the portion are in surface contact with each other, a non-contact region disposed on a side closer to the transition piece than the region, and a hole provided at the portion so as to face the surface in the groove across a gap in the region.