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发明授权
CN107416105B 流动路径控制装置及车辆高度调整设备 有权 转让

流动路径控制装置及车辆高度调整设备
摘要：
本发明提供了第四开关阀和第三开关阀。所述第四开关阀在关闭状态和打开状态之间转换，在关闭状态中，其中油从柱塞缸室朝向储存室定向的第四连通路径关闭，在打开状态中，第四连通路径通过从关闭状态移动至一个空间而打开。所述第四开关阀形成为具有与第四连通路径和所述空间连通的轴向通孔。在关闭状态下接收柱塞缸室的压力的受压面积小于接收所述空间的压力的受压面积。所述第三开关阀设置在第三连通路径上的所述空间中。所述第三连通路径定向为穿过第四开关阀的轴向通孔从柱塞缸室朝向储存室定向。第三开关阀在第一状态和第二状态之间转换，在第一状态中，轴向通孔关闭并且从柱塞缸室朝向所述空间定向的流入路径打开，在第二状态中，所述流入路径关闭并且所述轴向通孔打开。
摘要（英）：

A flow path control device according to one embodiment includes a first valve (304) which transitions between a closed state where a first flow path is closed and an open state where the first flow path is open by moving toward an space (S1) from the closed state. The first valve (304) is formed with an axial through-hole (393) that communicates with the first flow path and the space (S1). A pressure-receiving area (A1) of the first valve (304) against a jack chamber (51) is smaller than that against the space (S1). Further, a second valve (303) is provided in the space (S1) on a second flow path so as to transition between a first state where a radial through-hole (393) is closed and an inflow path oriented toward the space (S1) from the jack chamber (51) is open and a second state where it is closed and the radial through-hole (393) is open.

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