| 摘要 |
PURPOSE: A valve for controlling the flow of oil in a single-sided cylinder is provided to reduce accidents due to damage to pipes or tubes since pipes or tubes are not used. CONSTITUTION: A valve for controlling the flow of oil in a single-sided cylinder comprises a valve housing(36), a valve body, first channels(46,35,33,28,47), and a drive units(17,40,43). The valve housing surrounds a valve chamber(23). The valve housing comprises a cylindrical wall having a pump connection part(4), cylinder connection parts(24,31) and a tank connection part. The pump connection part is connected to the pump. The cylinder connection part is connected to a single hydraulic connection part. The tank connection part is connected to the storage tank. The valve body comprises protrusions(30,32,34) contacted with the cylindrical wall of the valve chamber. The first channel connects the tank connection part, the pump connection part, and the cylinder connector. The drive unit positions the valve body inside the valve chamber in an axial direction.
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