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. 10, 2018
Filed:
May. 23, 2014
Mitsubishi Heavy Industries Compressor Corporation, Tokyo, JP;
Tomoaki Okamura, Hiroshima, JP;
Makoto Katagake, Hiroshima, JP;
Abstract
This governing valve drive mechanism is a governing valve drive mechanism () that opens/closes a steam flow path () with a valve body () in order to regulate the flow rate of steam in a steam turbine (), and is equipped with: a valve body advancing/retreating mechanism () for advancing and retreating the valve body () toward and from the steam flow path (); multiple sets of electric actuators (A,B) each having a rotational drive source () and a conversion section () for converting rotation of the rotational drive source () into a linear motion; connection switching sections () by which the electric actuators (A,B) can be individually connected to the valve body advancing/retreating mechanism (); and a control unit () for controlling operations of the rotational drive sources () and connection switching sections ().