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    Fluid control valve, and valve timing adjusting device employing same
    1.
    发明授权
    Fluid control valve, and valve timing adjusting device employing same 有权

    公开(公告)号：US11519306B2

    公开(公告)日：2022-12-06

    申请号：US17167323

    申请日：2021-02-04

    申请人： DENSO CORPORATION

    发明人： Takuya Hamada ,  Makoto Otsubo ,  Tetsuro Mitsutani ,  Kinya Takahashi

    IPC分类号： F01L1/344 ,  F16K3/28

    摘要： A check valve is made of a resilient body wound in a ring form and is located in an annular flow passage. A displacement limiter includes: a limiter main body that is located on an outer side of the check valve and is configured to limit displacement of the check valve in a diameter increasing direction of the check valve; and a limiter flow passage that communicates between one side and the other side of the limiter main body in an axial direction to enable hydraulic oil to flow between the one side and the other side of the limiter main body through the limiter flow passage.

    Valve device
    2.
    发明授权
    Valve device 有权

    公开(公告)号：US12117089B2

    公开(公告)日：2024-10-15

    申请号：US18190565

    申请日：2023-03-27

    申请人： DENSO CORPORATION

    发明人： Takuya Hamada ,  Ryo Sano ,  Atsushi Tanaka ,  Akira Higuchi

    IPC分类号： F16K11/074 ,  F16K3/02 ,  F16K3/34 ,  F16K31/04 ,  F16K3/08

    CPC分类号： F16K3/0254 ,  F16K3/34 ,  F16K11/074 ,  F16K31/043 ,  F16K3/08

    摘要： A valve device includes a housing, a stationary disk, a drive device, a shaft and a rotor. The stationary disk is fixed at an inside of the housing and has at least one flow passage hole. The shaft is rotated about a central axis by the drive device. The rotor increases or decreases an opening degree of the at least one flow passage hole. The rotor includes: a drive disk that slides relative to the stationary disk; and a lever that is fixed to the drive disk and couples between the drive disk and the shaft. A torsion spring is placed between the shaft and the lever and urges the lever relative to the shaft in a circumferential direction around the central axis of the shaft. The shaft has a plurality of contact portions configured to contact the lever and respectively located at a plurality of locations.

    Valve device and fluid circulation circuit
    4.
    发明授权
    Valve device and fluid circulation circuit 有权

    公开(公告)号：US11940057B2

    公开(公告)日：2024-03-26

    申请号：US17683449

    申请日：2022-03-01

    申请人： DENSO CORPORATION

    发明人： Syota Kimura ,  Hiroki Shimada ,  Akira Higuchi ,  Takehito Mizunuma ,  Takuya Hamada ,  Ryou Sano

    IPC分类号： F16K3/10 ,  F16K3/08 ,  F16K3/314

    CPC分类号： F16K3/10 ,  F16K3/08 ,  F16K3/314 ,  F16K2200/101

    摘要： A valve device includes a flow path formation member provided with at least one flow path hole through which a fluid passes, and a drive part that outputs a rotational force. The valve device includes a shaft, and a rotor having a sliding surface that slides while facing an opening surface of the flow path formation member where the flow path hole is opened, and the rotor is configured to increase or decrease an opening degree of the flow path hole with rotation of the shaft. The valve device includes an energization member that energizes the rotor toward the flow path formation member. The valve device includes a coupling structure configured to tiltably couple the shaft to the rotor such that a contact state between the sliding surface and the opening surface is held regardless of a posture or a position of the shaft.