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    PISTON ROD SLEEVE MOUNTING FOR FLUID SPRAYER PUMP
    35.
    发明公开
    PISTON ROD SLEEVE MOUNTING FOR FLUID SPRAYER PUMP 审中-公开

    公开(公告)号：EP3680483A1

    公开(公告)日：2020-07-15

    申请号：EP20151792.7

    申请日：2020-01-14

    申请人： Graco Minnesota Inc.

    发明人： HORNING, Jeromy D. ,  LEGATT, August F.

    IPC分类号： F04B1/0408 ,  F04B15/02 ,  F04B53/14 ,  B05B9/04

    摘要： A piston rod includes a piston end that is removably attached to the piston rod body. A sleeve extends around the piston rod body and interfaces with a seal disposed within a pump. A ring extends from the piston end defines at least a portion of a socket formed in the piston end for connecting the piston end and the piston rod body. The ring has a cylindrical ring exterior and the sleeve rests on the cylindrical ring exterior such that the shank, the ring, and the sleeve radially overlap each other.

    SEAL ASSEMBLY FOR RECIPROCATING COMPRESSOR
    39.
    发明公开
    SEAL ASSEMBLY FOR RECIPROCATING COMPRESSOR 审中-公开

    公开(公告)号：EP3628867A1

    公开(公告)日：2020-04-01

    申请号：EP18197613.5

    申请日：2018-09-28

    申请人： AIR PRODUCTS AND CHEMICALS, INC.

    发明人： Chalk, David Jonathan

    IPC分类号： F04B39/04 ,  F04B53/14

    摘要： A seal assembly for a reciprocating rod of a reciprocating compressor, a reciprocating compressor with the seal assembly, and a method of operating the reciprocating compressor with the seal assembly to prevent leakage of gas once the compressor has been shut down. The pressure difference between opposite sides of a static seal is kept low during normal operation to reduce wear of the static seal. When the compressor is shut down, a high pressure difference between opposite sides of the static seal assists with sealing.