公开(公告)号：US06220571B1

公开(公告)日：2001-04-24

申请号：US09489011

申请日：2000-01-21

申请人： Wan-Yong Kim ,  Kwang-Il Kim ,  Gi-Myung Woo ,  Lae-Soo Park

发明人： Wan-Yong Kim ,  Kwang-Il Kim ,  Gi-Myung Woo ,  Lae-Soo Park

IPC分类号： F16K138

CPC分类号： F16K31/047 ,  F25B41/062 ,  F25B2341/0653 ,  Y02B30/72 ,  Y10S251/903

摘要： An electronic expansion valve for a cooling cycle includes a valve housing having intake and exhaust holes and an orifice formed on the exhaust hole. A case is disposed on the valve housing, and a motor is disposed within the case. The motor has a drive shaft extending inside the valve housing. A guide tube is disposed inside the valve housing, the guide tube being vertically or axially movable by rotation of the drive shaft. A needle valve is provided for adjusting an opening of the orifice, the needle valve being mounted on the guide tube. A mechanism is then provided for restricting an axial or vertical movement range of the guide tube and the needle valve, the mechanism being disposed on the drive shaft and the guide tube.

摘要翻译： 用于冷却循环的电子膨胀阀包括具有进气和排气孔的阀壳体和形成在排气孔上的孔口。 壳体设置在阀壳体上，电机设置在壳体内。 马达具有在阀壳体内延伸的驱动轴。 引导管设置在阀壳体的内部，引导管通过驱动轴的旋转而被垂直或轴向移动。 提供一种用于调节孔口开口的针阀，针阀安装在导管上。 然后提供用于限制引导管和针阀的轴向或垂直移动范围的机构，该机构设置在驱动轴和引导管上。