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:
Jun. 14, 2022
Filed:
Mar. 09, 2020
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Energy Systems & Solutions Corporation, Kawasaki, JP;
Kazuhiro Yokoshima, Yokohama Kanagawa, JP;
Osamu Shindo, Yokohama Kanagawa, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION, Kanagawa, JP;
Abstract
The steam valve driving apparatus according to an embodiment is a steam valve driving apparatus regulating open and close position of a valve body. The steam valve driving apparatus includes: a plurality of hydraulic cylinders that presses the valve body in an opening direction. Each of the hydraulic cylinders includes: a piston rod extending outward from a piston in the opening direction; and an open-side cylinder chamber arranged in the opposite side of the piston with respect to the piston and to which hydraulic oil is supplied. The hydraulic cylinder is disposed on a side opposite to the valve body with respect to a closing spring pressing the valve body in a closing direction.