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:
Mar. 17, 2015
Filed:
Jan. 15, 2010
Asako Inomata, Kanagawa-ken, JP;
Katsuya Yamashita, Tokyo, JP;
Kazuhiro Saito, Kanagawa-ken, JP;
Takao Inukai, Kanagawa-ken, JP;
Kazutaka Ikeda, Tokyo, JP;
Asako Inomata, Kanagawa-ken, JP;
Katsuya Yamashita, Tokyo, JP;
Kazuhiro Saito, Kanagawa-ken, JP;
Takao Inukai, Kanagawa-ken, JP;
Kazutaka Ikeda, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A plurality of blades are studded in a rotor disc integrated with the rotor along the circumferential direction of the rotor, a plurality of vanes are attached to a casing covering the rotor along the circumferential direction of the rotor, and an internal diaphragm disposed on rotor-side surfaces of the vanes in such a way that the internal diaphragm faces the rotor disc. The vanes and the blades adjacent to each other in the axial direction of the rotor form a turbine stage. A rotor-side cooling path is formed through the rotor disc in the axial direction of the rotor, and a diaphragm-side cooling path is formed through the internal diaphragm in the axial direction of the rotor, and a cooling medium flowing through the rotor-side cooling path diverts into the diaphragm-side cooling path and a labyrinth flow path provided between the internal diaphragm and the rotor.