Vane pump driven by an engine of an automobile

    公开(公告)号:US11149730B2

    公开(公告)日:2021-10-19

    申请号:US16445418

    申请日:2019-06-19

    Abstract: A vane pump includes a housing, a rotor rotatable about a rotation axis, and a vane that rotates together with the rotor and reciprocates in a radial direction with respect to the rotor, the vane dividing a pump chamber into a plurality of working chambers. At least one of opposite end surfaces of the vane in an axial direction is a sliding surface that slidably contacts an inner surface of the housing via an oil film, and an oil reservoir portion is provided in the sliding surface in a recessed manner.

    Pump end plate manufacturing method and pump

    公开(公告)号:US11255330B2

    公开(公告)日:2022-02-22

    申请号:US16076034

    申请日:2017-01-31

    Abstract: A manufacturing method of an end plate of a pump that can remove a sag includes: punching a workpiece from a plate material, the workpiece being the end plate including a mounting seat including a fastener; forming a pressed trace surface by pressing an outer edge of an outer surface, when a surface, of both front and back surfaces of the punched workpiece, further from a sag formed on a cut end surface is the outer surface, and a surface, of both front and back surfaces of the punched workpiece, nearer to the sag is an inner surface. A section of the pressed trace surface disposed along an outer edge of the mounting seat is a fastening section. A section of the pressed trace surface other than the fastening section is a non-fastening section. A radial width of the fastening section is shorter than that of the non-fastening section.

    VANE PUMP
    4.
    发明申请
    VANE PUMP 审中-公开

    公开(公告)号:US20200018308A1

    公开(公告)日:2020-01-16

    申请号:US16445418

    申请日:2019-06-19

    Abstract: A vane pump includes a housing, a rotor rotatable about a rotation axis, and a vane that rotates together with the rotor and reciprocates in a radial direction with respect to the rotor, the vane dividing a pump chamber into a plurality of working chambers. At least one of opposite end surfaces of the vane in an axial direction is a sliding surface that slidably contacts an inner surface of the housing via an oil film, and an oil reservoir portion is provided in the sliding surface in a recessed manner.

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