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:
Mar. 02, 2021
Filed:
Dec. 18, 2018
Siemens Schweiz Ag, Zürich, CH;
Lei Wang, Beijing, CN;
Zuo Hui Ren, Beijing, CN;
Jian Hui Wang, Beijing, CN;
Fu Lai Zhong, Tianjin, CN;
Fang Zhao, Beijing, CN;
Ping Zhang, Beijing, CN;
Xiao Xiang Zhang, Beijing, CN;
Ning Zhan, Beijing, CN;
SIEMENS SCHWEIZ AG, Zurich, CH;
Abstract
Various embodiments include a control valve comprising a first valve assembly between an inlet and an outlet. The first valve assembly comprises: a valve seat fixed relative to the valve body with an opening in a sidewall; a slider rotating inside the valve seat to block the opening, but stationary in an axial direction; a regulating valve plug with an opening at one end, surrounding the valve seat and movable in the axial direction to block the opening in the sidewall of the valve seat; and a first valve stem connected to the slider and to the regulating valve plug, the first valve stem having one end extending out of the valve body. A first overlap between the slider and the opening and a second overlap of the plug and the opening are changed by movement of the first valve stem.