- 专利标题: Pressure-compensated proportional flow control valve with an integrated turbine for flow rate sensing
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申请号: US17680704申请日: 2022-02-25
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公开(公告)号: US11680551B2公开(公告)日: 2023-06-20
- 发明人: Bernd Zähe
- 申请人: Sun Hydraulics, LLC
- 申请人地址: US FL Sarasota
- 专利权人: Sun Hydraulics, LLC
- 当前专利权人: Sun Hydraulics, LLC
- 当前专利权人地址: US FL Sarasota
- 代理机构: McDonnell Boehnen Hulbert & Berghoff LLP
- 主分类号: F15B13/02
- IPC分类号: F15B13/02 ; G01F1/115 ; F16K37/00 ; F03B13/00 ; F16K17/04 ; H02K7/18 ; G01F15/00 ; G01F15/06 ; F15B15/00 ; F16K11/07 ; F15B21/14
摘要:
An example valve includes: a pressure compensation spool configured to be subjected to a first fluid force of fluid received at a first port acting in a proximal direction; a pressure compensation spring disposed in a pressure compensation chamber and applying a biasing force on the pressure compensation spool in a distal direction; a turbine configured to rotate as fluid flows through the valve; and a flow area configured to throttle fluid flow from the first port to the pressure compensation chamber, wherein fluid in the pressure compensation chamber applies a second fluid force on the pressure compensation spool in the distal direction, such that the pressure compensation spool moves to a particular axial position based on force equilibrium between the first fluid force, the second fluid force, and the biasing force to throttle fluid flow from the pressure compensation chamber to a second port.
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