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.

Date of Patent:
Aug. 11, 2020

Filed:

Apr. 19, 2018
Applicant:

Toshiba Energy Systems & Solutions Corporation, Kawasaki-shi, JP;

Inventors:

Tomohiro Tejima, Yokohama, JP;

Tsuguhisa Tashima, Yokohama, JP;

Norikazu Takagi, Kawasaki, JP;

Shogo Iwai, Yokohama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 25/26 (2006.01); F01D 25/14 (2006.01); F01D 25/12 (2006.01); F02C 3/34 (2006.01);
U.S. Cl.
CPC ...
F01D 25/26 (2013.01); F01D 25/12 (2013.01); F01D 25/14 (2013.01); F02C 3/34 (2013.01); F05D 2220/31 (2013.01);
Abstract

An axial flow turbine according to an embodiment includes: an outer casing; an inner casing provided inside the outer casing; a discharge pipe that is welded and joined to the outer casing and through which a working fluid discharged from the axial flow turbine flows; a sleeve that is provided inside the outer casing and the discharge pipe and guides the working fluid discharged from the axial flow turbine to the discharge pipe; a tubular member that is provided over an outer periphery of the sleeve inside the outer casing and the discharge pipe and covers an inner periphery side of a joint portion between the outer casing and the discharge pipe; an introduction port that introduces a cooling medium into a space demarcated by the outer casing, the discharge pipe, and the tubular member; and a discharge port that discharges the cooling medium introduced into the space.


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