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    DUST COLLECTOR FOR VACUUM CLEANER
    2.
    发明公开
    DUST COLLECTOR FOR VACUUM CLEANER 审中-公开

    公开(公告)号：EP3895591A1

    公开(公告)日：2021-10-20

    申请号：EP21173238.3

    申请日：2015-11-20

    申请人： LG Electronics Inc.

    发明人： HYUN, Kietak ,  LEE, Seungyeop ,  AHN, Hyukjin

    IPC分类号： A47L9/16 ,  A47L9/10 ,  B04C5/06 ,  B04C5/26 ,  B04C5/28

    摘要： The present disclosure discloses a dust collector for a vacuum cleaner, comprising: an outer case; a first cyclone installed within the outer case to filter out dust from air inhaled from an outside thereof and introduce the air from which dust has been filtered out into an inside thereof; a plurality of second cyclones accommodated in the inside of the first cyclone to separate fine dust from the air introduced to the inside of the first cyclone; and a cover member disposed to cover an inlet of the second cyclone, wherein cyclones disposed adjacent to each other among the first and the second cyclones limit a first space within the first cyclone, and the cover member forms a second space communicating with the first space between the inlet and the cover member, and a guide vane extended in a spiral shape along an inner circumference thereof and provided at the inlet to induce rotational flow in air introduced to an inside of the second cyclones through the first and the second space, wherein an outlet of each second cyclone is installed to pass through a bottom surface of the first cyclone, an inner case for accommodating the outlet is installed at a lower portion of the first cyclone to form a fine dust storage portion for collecting fine dust discharged through the outlet, and dust filtered out through the first cyclone is collected into a dust storage portion between an inner circumference of the outer case and an outer circumference of the inner case, a lower cover is hinge-coupled to the outer case to form a bottom surface of the dust storage portion and the fine dust storage portion, and rotated by the hinge to open the dust storage portion and the fine dust storage portion at the same time so as to discharge the dust and the fine dust at the same time.

    FLUID SEPARATION APPARATUS AND SYSTEM
    8.
    发明公开
    FLUID SEPARATION APPARATUS AND SYSTEM 审中-公开

    公开(公告)号：EP3426406A1

    公开(公告)日：2019-01-16

    申请号：EP17714943.2

    申请日：2017-03-10

    申请人： National Oilwell Varco, L.P.

    发明人： WEAVER, Randall, Ferrain ,  WOLF, Mark, Ernest ,  EGGLESTON, Clifton, Dee

    IPC分类号： B04C5/22 ,  B04C5/28 ,  B04C11/00

    摘要： A fluid separation apparatus includes a hydrocyclone (100) having an orifice (134) therein, a housing (202) disposed in the hydrocyclone and having a bore (204), a piston (240) disposed in the bore (204) of the housing (202), and a first annular seal (248) disposed between the housing (202) and the piston (240) and configured to restrict fluid communication between the housing (202) and the piston (240), wherein the piston (240) includes a passage (242) extending through the piston (240) and having a pin (254) coupled to a first end (240a) of the piston, the piston (240) being actuatable to move between a first position (260) where the pin (254) is clear of the orifice (134) of the hydrocyclone, and a second position where the pin (254) is disposed in the orifice (134), wherein, the piston (240) is configured such that as the piston is actuated from the first position to the second position, fluid is permitted to flow into the passage (242) of the piston (240) from the bore (204) of the housing (202).