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    POWER TRANSMISSION DEVICE AND EXPANSION VALVE
    1.
    发明申请
    POWER TRANSMISSION DEVICE AND EXPANSION VALVE 有权

    公开(公告)号：US20250119047A1

    公开(公告)日：2025-04-10

    申请号：US18983205

    申请日：2024-12-16

    Applicant: DENSO CORPORATION

    Inventor： Takafumi MATSUMOTO ,  Hiroto INOUE ,  Takuro SAHARA ,  Shinji HASHIMOTO ,  Satoshi MIYANO ,  Riku OUCHI ,  Shigeji OISHI ,  Hiroyuki KAWASHIMA ,  Tokuhisa TAKEUCHI

    IPC: H02K49/10

    Abstract: A power transmission device includes a magnetic gear with an input shaft magnet that receives rotational driving force, a magnetic modulator to modulate magnetic flux, a multi-pole magnet with more poles than the input shaft magnet, and an output shaft rotating with either the magnetic modulator or the multi-pole magnet. The device also features a magnetic circuit where the magnetic flux flows in parallel from the input shaft magnet. Between the input shaft magnet and the magnetic modulator is a flux-forming member with higher magnetic permeability than a vacuum, forming a short-circuiting flux path. The magnetic circuit creates two paths: a torque generation path, where magnetic flux flows through the magnetic modulator and multi-pole magnet, and a short-circuit flux path, where it bypasses the magnetic modulator. The flux-forming member's magnetic permeability is within ±20% of the value that maximizes torque.

    MULTI-GAP ROTATING ELECTRIC MACHINE
    2.
    发明申请
    MULTI-GAP ROTATING ELECTRIC MACHINE 审中-公开
    多功能旋转电机

    公开(公告)号：US20160276904A1

    公开(公告)日：2016-09-22

    申请号：US15071732

    申请日：2016-03-16

    Applicant: DENSO CORPORATION

    Inventor： Takafumi MATSUMOTO ,  Hirohito MATSUI ,  Koji ASAGARA ,  Takeo MAEKAWA ,  Keiji KONDOU

    IPC: H02K9/19 ,  H02K1/20 ,  H02K16/04 ,  H02K5/20

    CPC classification number: H02K9/19 ,  H02K3/24 ,  H02K5/20 ,  H02K16/04

    Abstract: In a multi-gap rotating electric machine, a side stator coil is received in a side space formed in a housing to connect radially inner and radially outer stator coils across a rotor. A cooling oil flow adjustment member is provided to adjust flow of cooling oil in the side space. The adjustment member has cooling oil guide channels formed on an uneven surface thereof facing the side stator coil. When viewed along a central axis of a rotating shaft: on an upper apart of the uneven surface which is located above the central axis, the cooling oil guide channels spread from a reference line to both sides of the reference line while extending downward; and on a lower part of the uneven surface which is located below the central axis, the cooling oil guide channels converge on the reference line from both sides of the reference line while extending downward.

    Abstract translation: 在多间隙旋转电机中，侧定子线圈被容纳在形成在壳体中的侧空间中，以将径向内部和径向外部定子线圈跨过转子。 提供冷却油流调节构件以调节侧空间中的冷却油的流动。 调节构件具有形成在其面向侧定子线圈的不平坦表面上的冷却油引导通道。 当沿着旋转轴的中心轴线观察时：在位于中心轴线上方的不平坦表面的上部分布处，​​冷却油引导通道从参考线扩展到参考线的两侧同时向下延伸; 并且在位于中心轴线下方的不平坦表面的下部，冷却油引导通道在向下延伸的同时从基准线的两侧汇聚在基准线上。

    MOTOR-OPERATED VALVE
    3.
    发明申请
    MOTOR-OPERATED VALVE 有权

    公开(公告)号：US20250116347A1

    公开(公告)日：2025-04-10

    申请号：US18983052

    申请日：2024-12-16

    Applicant: DENSO CORPORATION

    Inventor： Takafumi MATSUMOTO ,  Hiroto INOUE ,  Takuro SAHARA ,  Shinji HASHIMOTO ,  Satoshi MIYANO ,  Riku OUCHI ,  Hiroyuki KAWASHIMA ,  Shigeji OISHI

    IPC: F16K31/04 ,  H02P29/40

    Abstract: A motor-operated valve includes a motor, valve seat, valve body, magnetic gear, and controller. The motor generates rotational force when powered, allowing the valve body to open and close the valve port, which permits fluid passage. The magnetic gear transmits this force from the motor to the valve body. The controller regulates the electric current supplied to the motor. During fully-closed operation, the controller limits the current to less than a fully-closed current limit value, ensuring the valve port is completely closed. This limit value is higher than the adjusting current value, which is the current supplied during valve opening adjustments.

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