Invention Grant
- Patent Title: Champagne tower-type multi-stage throttle control valve
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Application No.: US17790108Application Date: 2021-03-11
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Publication No.: US11953120B2Publication Date: 2024-04-09
- Inventor: Wei Wang , Fengguan Chen , You Ming , Hongbing Yu , Shengtao Geng , Xiaojie Ye , Qin Wang
- Applicant: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE CO., LTD
- Applicant Address: CN Hefei
- Assignee: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE CO., LTD
- Current Assignee: HEFEI GENERAL MACHINERY RESEARCH INSTITUTE CO., LTD
- Current Assignee Address: CN Hefei
- Agency: Bayramoglu Law Offices LLC
- Priority: CN 2010173265.7 2020.03.13
- International Application: PCT/CN2021/080131 2021.03.11
- International Announcement: WO2021/180151A 2021.09.16
- Date entered country: 2022-06-29
- Main IPC: F16K47/04
- IPC: F16K47/04 ; F16K1/36

Abstract:
A champagne tower-type multi-stage throttle control valve includes a valve body, a valve cover, a throttle sleeve, and a valve core. A sleeve cavity of the throttle sleeve is shaped as a stepped hole with two or more layers. The valve core is shaped as a stepped shaft with two or more layers coaxial with the throttle sleeve. The number of shaft shoulders of the valve core is smaller than or equal to the number of hole shoulders of the sleeve cavity of the throttle sleeve, such that each set of shaft shoulders of the valve core in an axial direction can form a sealing surface fit with corresponding hole shoulders of the throttle sleeve. A flow channel groove is axially or obliquely formed on each of the hole shoulders of the throttle sleeve and/or the shaft shoulders of the valve core.
Public/Granted literature
- US20230052558A1 CHAMPAGNE TOWER-TYPE MULTI-STAGE THROTTLE CONTROL VALVE Public/Granted day:2023-02-16
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