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    Valve apparatus
    1.
    发明授权
    Valve apparatus 有权
    阀门装置

    公开(公告)号：US09500162B2

    公开(公告)日：2016-11-22

    申请号：US13948689

    申请日：2013-07-23

    Applicant: DENSO CORPORATION

    Inventor： Kazushi Sasaki ,  Ryo Sano ,  Satoshi Ishigaki ,  Hiroki Shimada

    IPC: F02M25/07 ,  F16K31/04 ,  F16K37/00 ,  F16K31/524

    CPC classification number: F02M26/54 ,  F16K31/042 ,  F16K31/047 ,  F16K31/52408 ,  F16K37/0083

    Abstract: A valve apparatus performs at least one of a first operation in which an electric motor is energized in a valve-close direction and a rotation shaft is rotated until its rotation is stopped and a second operation in which the electric motor is deenergized and a valve is fully closed by a biasing force of a return spring. Thereby, a rotation angle of the rotation shaft becomes a rotation-stop angle or the rotation angle becomes in the backlash range, so that a biasing force of the return spring is not transmitted to the rotation shaft. Then, the electric motor generates a specified torque, which is less than a valve-opening torque by which the valve starts opening. Thereby, a rotation angle of the rotation shaft can be stopped at a full-close angle. The full-close angle can be made correspond to an output of a rotational angle sensor.

    Abstract translation: 阀装置执行以下操作中的至少一个：电动机在关闭方向上通电并且旋转轴旋转直到其旋转停止的第一操作和电动机断电的第二操作和阀是 由复位弹簧的偏置力完全关闭。 由此，旋转轴的旋转角度成为止转角，或旋转角度成为间隙范围，使得复位弹簧的作用力不会传递给旋转轴。 然后，电动机产生规定的转矩，该转矩小于开阀开阀的开阀力矩。 由此，旋转轴的旋转角度能够以全角度停止。 全关角度可以对应于旋转角度传感器的输出。

    Valve device and fluid circulation circuit
    2.
    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

    Applicant: DENSO CORPORATION

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

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

    CPC classification number: F16K3/10 ,  F16K3/08 ,  F16K3/314 ,  F16K2200/101

    Abstract: 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.

    Exhaust system for internal combustion engine
    5.
    发明授权
    Exhaust system for internal combustion engine 有权
    内燃机排气系统

    公开(公告)号：US09404444B2

    公开(公告)日：2016-08-02

    申请号：US14212032

    申请日：2014-03-14

    Applicant: DENSO CORPORATION

    Inventor： Ryo Sano ,  Satoshi Ishigaki ,  Hiroki Shimada ,  Osamu Sato

    IPC: F02M25/07

    CPC classification number: F02M26/67 ,  F02M26/53 ,  F02M26/54 ,  F02M26/55 ,  F02M26/56 ,  F02M26/57 ,  F02M26/58 ,  F02M26/68 ,  Y02T10/121

    Abstract: In an exhaust system for an internal combustion engine, an output member is configured to transmit power generated by a motor to a valving element via a valve stem. An output shaft is disposed on a rotation central axis of an output gear and coupled with the output gear to be rotatable integrally therewith. A follower is disposed eccentrically relative to a rotation central axis of the output shaft and connected to the output shaft to be rotatable integrally therewith. A first accommodating chamber accommodates at least the valve stem and the follower. A second accommodating chamber accommodates at least the motor and the output gear. A housing includes a housing wall that divides the first chamber from the second chamber. The housing wall includes a first bearing slidably supporting the output shaft in its rotation direction, and a cylindrical first bearing holder holding outer periphery of the first bearing.

    Abstract translation: 在用于内燃机的排气系统中，输出构件被配置为经由阀杆将电动机产生的动力传递给阀元件。 输出轴设置在输出齿轮的旋转中心轴上并与输出齿轮联接以与其一体旋转。 跟随器相对于输出轴的旋转中心轴偏心设置，并连接到输出轴以与其一体地旋转。 第一容纳室容纳至少阀杆和从动件。 第二容纳室容纳至少电机和输出齿轮。 壳体包括将第一腔室与第二腔室分开的壳体壁。 壳体壁包括可沿其旋转方向可滑动地支撑输出轴的第一轴承和保持第一轴承的外周的圆柱形第一轴承保持架。

    Valve device
    6.
    发明授权
    Valve device 有权

    公开(公告)号：US12196327B2

    公开(公告)日：2025-01-14

    申请号：US18194220

    申请日：2023-03-31

    Applicant: DENSO CORPORATION

    Inventor： Takehito Mizunuma ,  Shota Kimura ,  Ryo Sano ,  Hiroki Shimada

    IPC: F16K11/074 ,  F16K3/34 ,  F16K27/04 ,  F16K31/04 ,  F16K31/53 ,  F16K3/08

    Abstract: A valve device includes a housing, a flow hole forming portion and a rotor. The housing has a passage for fluid. The flow hole forming portion is fixed at the passage and includes: a plurality of flow holes, each of which is configured to conduct the fluid; and at least one partition which is placed between corresponding adjacent two of the flow holes. The rotor includes a passage opening and a closing portion. The at least one partition of the flow hole forming portion has: a parallel portion which extends in parallel with a radial direction of an imaginary circle centered on a rotational axis; and a progressively varying portion which is placed on an outer side of the parallel portion in the radial direction. A width of the progressively varying portion measured in a circumferential direction is progressively increased toward the outer side in the radial direction.

    Valve control device
    10.
    发明授权
    Valve control device 有权
    阀门控制装置

    公开(公告)号：US09482160B2

    公开(公告)日：2016-11-01

    申请号：US13914998

    申请日：2013-06-11

    Applicant: DENSO CORPORATION

    Inventor： Kazushi Sasaki ,  Hiroki Shimada ,  Ryo Sano

    IPC: F02D13/02 ,  F02D41/00

    CPC classification number: F02D13/0242 ,  F02D41/0072 ,  F02D41/0077 ,  F02M26/54 ,  F02M26/66

    Abstract: A cam full close stopper defines a cam full close position that is a limit position of a rotatable range of a cam. A sensor element outputs a signal corresponding to a rotation angle of the cam. A signal processor changes the signal output from the sensor element into a sensor output. A storage part memorizes a data table representing a correspondence relationship between the rotation angle of the cam and the sensor output of the signal processor in a predetermined form, characteristics of the sensor output being adjustable at a plurality of points with respect to the rotation angle of the cam. The storage part memorizes the sensor output of the signal processor when the cam is fully closed at the cam full close position.

    Abstract translation: 凸轮完全关闭止动器限定凸轮完全关闭位置，其是凸轮的可旋转范围的极限位置。 传感器元件输出与凸轮的旋转角相对应的信号。 信号处理器将从传感器元件输出的信号改变为传感器输出。 存储部件以预定形式存储表示凸轮的旋转角度和信号处理器的传感器输出之间的对应关系的数据表，该传感器输出的特性可在多个点处相对于旋转角度 凸轮。 当凸轮完全关闭时，存储部分存储信号处理器的传感器输出。

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