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:
Apr. 27, 2021
Filed:
Jan. 02, 2018
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Hiroaki Mitsui, Shinjuku, JP;
Tsuguhisa Tashima, Yokohama, JP;
Shogo Iwai, Ota, JP;
Takahiro Ono, Ota, JP;
Daichi Fukabori, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Abstract
An exhaust hood in an embodiment includes: an outer casing; and an annular diffuser which is provided on a downstream side of a final turbine stage and formed by a cylindrical steam guide and a cylindrical bearing cone provided inside the steam guide. The steam guide includes a curved guide and a flat-plate guide which is provided on a downstream side of the curved guide. When a cross section of the outer casing vertical to the rotation axis of the turbine rotor is viewed from the downstream side of the steam guide, expansion outward in the radial direction of the flat-plate guide is set based on D/H where a distance between the rotation axis of the turbine rotor and an inner surface of the outer casing is H and a distance between the rotation axis of the turbine rotor and a downstream end of the flat-plate guide is D.