| 摘要 |
PURPOSE: A dynamic high-pressure sealing apparatus is provided to effectively prevent the leakage of pressure by simultaneously employing a high-pressure ring and a low-pressure ring. CONSTITUTION: A dynamic high-pressure sealing apparatus comprises a high-pressure ring(10) and a cylinder(20). The high-pressure ring is fitted to a piston(30) and has a ring-shaped outer protrusion(11) and a ring-shaped inner protrusion(12) which is bent toward the piston for sealing when high pressure is created. The cylinder comprises a protrusion(21) contacting with one side of the outer protrusion and screw thread formed from the other side of the outer protrusion.
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