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. 24, 2025
Filed:
Jan. 13, 2022
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Marino Watanabe, Kanagawa, JP;
Akira Kondo, Kanagawa, JP;
Shinya Hamada, Kanagawa, JP;
Tatsuya Yoshida, Kanagawa, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
There is provided a control device that controls a controlled variable of a control target to a target value by controlling a flow rate of gas supplied to and discharged from the control target by a spool type flow control valve. The control device includes a controller that generates a spool position command of the spool type flow control valve, based on the target value, and a non-linear compensator that applies a correction for linearly compensating for non-linear flow rate characteristics of the spool type flow control valve to the generated spool position command, and outputs the command to the spool type flow control valve.