发明申请
US20170122631A1 ELECTRONIC EXPANSION VALVE AND METHODS FOR CALIBRATING AN ELECTRONIC EXPANSION VALVE
审中-公开
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基本信息:
- 专利标题: ELECTRONIC EXPANSION VALVE AND METHODS FOR CALIBRATING AN ELECTRONIC EXPANSION VALVE
- 申请号:US15303304 申请日:2015-05-20
- 公开(公告)号:US20170122631A1 公开(公告)日:2017-05-04
- 发明人: Michael Birkelund
- 申请人: Danfoss A/S
- 优先权: EP14171191.1 20140604
- 国际申请: PCT/EP2015/061059 WO 20150520
- 主分类号: F25B41/06
- IPC分类号: F25B41/06 ; F16K37/00 ; F16K31/06
摘要:
An electronic expansion valve (1) is provided, comprising an inlet (9), an outlet (8), an armature (2), a stop member (3), a biasing member (4) and a solenoid coil (12). The biasing member (4) provides a biasing force on the armature (2) towards a closing direction while the solenoid coil (12) may be provided with a current to provide a magnetic force on the armature (2) towards an opening direction. It is intended to provide an electronic expansion valve that may be controlled more precisely and has a higher safety. To this end the pressure difference between the inlet pressure and the outlet pressure provides a differential pressure force on the armature (2) towards an opening direction to allow a fluid flow from the inlet (9) to the outlet (8), and furthermore the armature (2) is displaced away from the stop member (3) to allow a fluid flow from the inlet (9) to the outlet (8) if the sum of the magnetic force and the differential pressure force on the armature (2) exceeds the biasing force. The invention furthermore relates to a refrigeration system comprising such an electronic expansion valve as well as a method for calibrating such an electronic expansion valve.
公开/授权文献:
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F25 | 制冷或冷却;加热和制冷的联合系统;热泵系统;冰的制造或储存;气体的液化或固化 |
----F25B | 制冷机,制冷设备或系统;加热和制冷的联合系统;热泵系统 |
------F25B41/00 | 流体循环装置,例如从蒸发器往发生器输送液体用的 |
--------F25B41/06 | .流量限制器,例如毛细管;及其配置 |