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    HIGH-PRESSURE PUMP
    1.
    发明申请
    HIGH-PRESSURE PUMP 审中-公开

    公开(公告)号：US20200088147A1

    公开(公告)日：2020-03-19

    申请号：US16694272

    申请日：2019-11-25

    Applicant: DENSO CORPORATION

    Inventor： Tatsuro KOGA ,  Noriya MATSUMOTO

    IPC: F02M59/46 ,  F02M69/54 ,  F16K17/04 ,  F02M59/02

    Abstract: In a high-pressure pump, a relief valve seating surrounds an opening of a relief valve passage of a valve seat main body in a first space, A relief valve member includes a relief valve main body and a relief valve seat portion. The relief valve main body has a rod shape. The relief valve seat portion is integrated with an end of the relief valve main body so as to be capable of contacting the relief valve seat. The relief valve urging member urges the relief valve member toward the relief valve seat. A support portion includes a support main body that slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve member in the axial direction.

    HIGH-PRESSURE PUMP
    2.
    发明申请
    HIGH-PRESSURE PUMP 审中-公开

    公开(公告)号：US20180135580A1

    公开(公告)日：2018-05-17

    申请号：US15580332

    申请日：2016-05-10

    Applicant: DENSO CORPORATION

    Inventor： Tatsuro KOGA ,  Noriya MATSUMOTO

    IPC: F02M59/46 ,  F02M59/02 ,  F16K17/04

    CPC classification number: F02M59/46 ,  F02M59/025 ,  F02M59/102 ,  F02M59/442 ,  F02M69/54 ,  F16K17/04

    Abstract: In a high-pressure pump, a relief valve seat surrounds an opening of a relief valve passage of a valve seat main body in a first space. A relief valve member includes a relief valve main body and a relief valve seat portion. The relief valve main body has a rod shape. The relief valve seat portion is integrated with an end of the relief valve main body so as to be capable of contacting the relief valve seat. The relief valve member is provided in the first space so as to be reciprocable in an axial direction. A relief valve urging member urges the relief valve member toward the relief valve seat. A support portion includes a support main body that slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve member in the axial direction.

    HIGH-PRESSURE PUMP
    3.
    发明申请
    HIGH-PRESSURE PUMP 审中-公开

    公开(公告)号：US20180163682A1

    公开(公告)日：2018-06-14

    申请号：US15580322

    申请日：2016-05-10

    Applicant: DENSO CORPORATION

    Inventor： Tatsuro KOGA ,  Noriya MATSUMOTO ,  Seiji TANIZAWA

    IPC: F02M59/46 ,  F02M69/54 ,  F02M63/00 ,  F16K17/08 ,  F02M37/06

    CPC classification number: F02M59/462 ,  F02M37/06 ,  F02M55/025 ,  F02M59/46 ,  F02M63/005 ,  F02M69/54 ,  F02M2200/30 ,  F16K17/085

    Abstract: In a high-pressure pump, a relief valve main body has a rod shape. A relief valve seat portion is integrated with an end of a relief valve main body so as to be capable of contacting a relief valve seat. The relief valve main body is inserted into a guide hole portion of a support portion. The guide hole portion slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve main body in the axial direction. A fuel guide portion is provided at an end portion of the relief valve main body facing the pressurizing chamber and can guide a flow of the fuel in a direction radially outward of the relief valve main body on the way from the pressurizing chamber toward the valve seat portion.

    HIGH PRESSURE PUMP HAVING UNITARY DISCHARGE AND RELIEF VALVE
    4.
    发明申请
    HIGH PRESSURE PUMP HAVING UNITARY DISCHARGE AND RELIEF VALVE 审中-公开
    具有排气和排气阀的高压泵

    公开(公告)号：US20160025054A1

    公开(公告)日：2016-01-28

    申请号：US14872794

    申请日：2015-10-01

    Applicant: DENSO CORPORATION

    Inventor： Masatoshi KUROYANAGI ,  Shinobu OIKAWA ,  Tatsuro KOGA

    IPC: F02M59/02 ,  F04B53/14 ,  F04B53/16 ,  F04B19/22 ,  F04B53/10

    CPC classification number: F04B53/109 ,  F04B1/0404 ,  F04B17/05 ,  F04B19/22 ,  F04B49/035 ,  F04B49/24 ,  F04B53/00 ,  F04B53/1087 ,  F04B53/14 ,  F04B53/16 ,  F04C14/26 ,  F16K17/048

    Abstract: A valve body is provided with a discharge relief portion. A relief valve outlet is formed in an end face thereof on a central axis of the valve body. Discharge valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet is formed in another end face thereof and relief valve inlets are point-symmetrically formed with respect to the central axis. A discharge valve outlet and the discharge valve inlets communicate with each other. A flow of fuel from a pressurization chamber to a fuel discharge port is restricted by a discharge valve member capable of closing the discharge valve outlet. The relief valve outlet and the relief valve inlets communicate with each other. A flow of fuel from the fuel discharge port to the pressurization chamber is restricted by a relief valve member capable of closing the relief valve outlet.

    Abstract translation: 阀体设有排出口释放部。 安全阀出口形成在阀体的中心轴线的端面上。 排放阀入口相对于中心轴线点对称地形成。 排气阀出口形成在另一个端面，安全阀入口相对于中心轴线点对称地形成。 排出阀出口和排出阀入口彼此连通。 从加压室到燃料排出口的燃料流由能够关闭排出阀出口的排出阀构件限制。 安全阀出口和安全阀入口相互连通。 从燃料排出口到加压室的燃料流由能够关闭安全阀出口的安全阀构件限制。

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