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. 01, 2005
Filed:
Jan. 27, 2003
Atsuhide Suzuki, Kanagawa-ken, JP;
Toshihiro Fujiwara, Kanagawa-ken, JP;
Masataka Fukuda, Tokyo, JP;
Kazuaki Ikeda, Kanagawa-ken, JP;
Toshihiro Matsuura, Tokyo, JP;
Osamu Watanabe, Kanagawa-ken, JP;
Hisao Fujihashi, Santa Rosa, CA (US);
Kentaro Takagi, Kanagawa-ken, JP;
Atsuhide Suzuki, Kanagawa-ken, JP;
Toshihiro Fujiwara, Kanagawa-ken, JP;
Masataka Fukuda, Tokyo, JP;
Kazuaki Ikeda, Kanagawa-ken, JP;
Toshihiro Matsuura, Tokyo, JP;
Osamu Watanabe, Kanagawa-ken, JP;
Hisao Fujihashi, Santa Rosa, CA (US);
Kentaro Takagi, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A geothermal turbine comprises a turbine casing, a turbine rotor shaft, a plurality of nozzle diaphragm outer rings fixed to the turbine casing, a plurality of nozzle diaphragm inner rings located radially inside the nozzle diaphragm outer rings, a plurality of nozzles placed between the nozzle diaphragm outer rings and the nozzle diaphragm inner rings, which form a steam passage, a plurality of rotor blades mounted on the turbine rotor shaft, which face the nozzles and form a blade cascade in a circumferential direction, a shroud arranged on tip of the rotor blade, an overhang attached to the nozzle diaphragm outer ring, which extends downstream of the nozzles and has an inner surface facing radially outside the shroud, and a plurality of sealing fins which protrude radially outward from the shroud and face the overhang.