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    • 3. 发明授权
    • Airlift piston mechanism
    • 空运活塞机构
    • US06616426B1
    • 2003-09-09
    • US10107167
    • 2002-03-28
    • Chi-Wang LiangMing-Fei Chen
    • Chi-Wang LiangMing-Fei Chen
    • F04B3910
    • F04B39/0016F04B39/0005
    • An airlift piston mechanism is disclosed to include a casing having a piston chamber, an air inlet, a check valve in the air inlet, and an air outlet, a link, a piton reciprocated by the link in the piston chamber, the piston having an air accumulation chamber in communication with the piston chamber, annular grooves around the periphery, and an air passage in communication between the air accumulation chamber and the annular grooves, and seal rings mounted in the annular grooves, the seal rings each having radial through holes for discharging of air from the air accumulation chamber for enabling the seal rings to be lifted subject to the variation of air pressure in the air accumulation chamber to reduce friction resistance between the casing and the piston.
    • 公开了一种空气提升活塞机构,其包括具有活塞室,空气入口,空气入口中的止回阀和空气出口,连杆,通过活塞室中的连杆往复运动的枢轴的壳体的壳体,活塞具有 与活塞室连通的空气积聚室,围绕周边的环形槽,以及空气积聚室和环形槽之间连通的空气通道,以及安装在环形槽中的密封环,每个密封环均具有径向通孔, 从空气积聚室排出空气,以使密封环能够通过空气积聚室中的空气压力的变化而升高,以减小壳体和活塞之间的摩擦阻力。