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. 02, 2020
Filed:
Apr. 18, 2016
Mitsubishi Hitachi Power Systems, Ltd., Yokohama-shi, Kanagawa, JP;
Keita Takamura, Yokohama, JP;
Masanori Yuri, Yokohama, JP;
Shinya Hashimoto, Yokohama, JP;
Junichiro Masada, Yokohama, JP;
Yuji Komagome, Yokohama, JP;
Masato Araki, Tokyo, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Kanagawa, JP;
Abstract
A rotor shaft has: an inlet flow passage through which gas inside a gas compression flow passage flows into an outer cavity of a downstream-side cavity group; a radial flow passage that provides communication between the outer cavity and an axial communication cavity of the downstream-side cavity group; an axial flow passage that provides communication between the axial communication cavity of the downstream-side cavity group and the axial communication cavity of an upstream-side cavity group; another radial flow passage that provides communication between the axial communication cavity and the outer cavity of the upstream-side cavity group; and an outlet flow passage through which the gas inside the outer cavity of the upstream-side cavity group flows out into the gas compression flow passage.