| 摘要 |
PURPOSE: A pressure intensifier having an oil supply structure is provided to enable precise control of a piston rod as working oil is supplied through one of flow channels and fed into a low-pressure cylinder through a plurality of inlet holes arranged in a ring shape. CONSTITUTION: A pressure intensifier comprises a high-pressure cylinder(10), a low-pressure cylinder(20), a piston rod(30), and a manifold block(40). The low-pressure cylinder is connected to an end of the high-pressure cylinder and has first and second inlets(21a,21b) respectively formed on the leading and tail ends. The piston rod is installed inside the high-pressure cylinder and the low-pressure cylinder. The manifold block receives the low-pressure cylinder and supplies working oil to the first or the second inlet to move the piston rod from side to side. The first and the second inlet have inflow passages which are formed on the circumference of the low-pressure cylinder to form flow channels and a plurality of inlet holes which are formed at regular intervals in the inflow passages in order to distribute and supply the working oil into the low-pressure cylinder in a circular form. |
