IDiyas

For the Inventor, By the Inventor

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.:

US 9631514 B1

PDFFull Text
Date of Patent:
Apr. 25, 2017

Filed:

Feb. 19, 2014

Axial-flow turbine and power plant including the same

Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Akihiro Onoda, Yokohama, JP;

Yuki Mimura, Yokohama, JP;

Shoko Ito, Sagamihara, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Christopher Besler

Assistant Examiner:

Bayan Salone

Int. Cl.
CPC ...
F02C 3/34 (2006.01); F02C 7/18 (2006.01); F02C 7/10 (2006.01); F02C 9/20 (2006.01); F01D 9/06 (2006.01); F02C 3/20 (2006.01); F02C 3/22 (2006.01); F02C 3/24 (2006.01); F01K 7/16 (2006.01); F01K 7/18 (2006.01); F01K 7/20 (2006.01); F01K 11/02 (2006.01); F01D 1/02 (2006.01); F01D 25/12 (2006.01); F01D 17/14 (2006.01); F02C 7/12 (2006.01); F02C 3/13 (2006.01); F02C 9/18 (2006.01); F01D 11/00 (2006.01); F02C 9/22 (2006.01); F01D 11/02 (2006.01);
U.S. Cl.
CPC ...
F01D 25/12 (2013.01); F01D 11/025 (2013.01); F01D 11/001 (2013.01); F01D 11/02 (2013.01); F01D 17/141 (2013.01); F01D 17/143 (2013.01); F01D 17/145 (2013.01); F02C 3/13 (2013.01); F02C 7/12 (2013.01); F02C 7/18 (2013.01); F02C 9/18 (2013.01); F02C 9/20 (2013.01); F02C 9/22 (2013.01); F05D 2260/20 (2013.01); F05D 2260/61 (2013.01); Y02E 20/18 (2013.01); Y02E 20/185 (2013.01);
Abstract

An axial-flow turbine according to an embodiment includes a plurality of nozzle structures and a plurality of blade structures. At least one nozzle structure includes an outer ring diaphragm and an inner ring diaphragm. The outer ring diaphragm and the inner ring diaphragm form an annular opening portion which extends in a circumferential direction therebetween. A nozzle is provided in a portion of a region of the annular opening portion in the circumferential direction, and a closing part is provided in another portion of the region of the annular opening portion in the circumferential direction. The closing part closes this other portion of the region to prevent a working fluid from flowing into this other portion of the region. A closing part medium passage is provided in the closing part and is configured to flow a cooling medium which cools the closing part.

Find Patent Forward Citations

Loading…