- 专利标题: Flow Control Valve
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申请号: US17191148申请日: 2021-03-03
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公开(公告)号: US20210278010A1公开(公告)日: 2021-09-09
- 发明人: Shinji MURAl
- 申请人: AISAN KOGYO KABUSHIKI KAISHA
- 申请人地址: JP Obu-shi
- 专利权人: AISAN KOGYO KABUSHIKI KAISHA
- 当前专利权人: AISAN KOGYO KABUSHIKI KAISHA
- 当前专利权人地址: JP Obu-shi
- 优先权: JP2020-036630 20200304
- 主分类号: F16K31/50
- IPC分类号: F16K31/50 ; F16K1/08
摘要:
A flow control valve includes a housing having a valve chamber, an inlet port, an outlet port, and a valve seat. In addition, the flow control valve includes a valve body disposed in the valve chamber, an actuator having an output rotational shaft, a feed screw mechanism to convert forward and reverse rotational motion of the output rotational shaft to axial reciprocating motion of the valve body, a backlash preventive spring positioned between the housing and the valve body, and a spring supporting device formed on the housing and having a spring seating surface. The spring seating surface is spaced from the valve seat in an opening direction of the valve body.
公开/授权文献
- US11499649B2 Flow control valve 公开/授权日:2022-11-15