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1. 发明授权

US11079028B2 Valve device 有权
公开(公告)号：US11079028B2
公开(公告)日：2021-08-03
申请号：US16805982
申请日：2020-03-02
申请人： DENSO CORPORATION
发明人： Koji Hashimoto , Naohito Seko , Ryo Sano
IPC分类号： F16K11/087 , F16K5/20 , F01P7/14 , F16K31/12 , F16K5/06
摘要： A sleeve member of a movable unit has a first pressure receiving surface and a second pressure receiving surface. The first pressure receiving surface receives a first fluid pressure in an axial direction opposite to a biasing force of a spring, when a valve member closes a seat opening portion. The second pressure receiving surface receives a second fluid pressure in the same axial direction to a direction of the biasing force of the spring, when the valve member closes the seat opening portion. A first surface area and a second surface area are made to be equal to each other. Each of the first and the second surface areas is an area of a projected portion on a virtual plane perpendicular to the axial direction. Each of the projected portions is obtained when each of the first and the second pressure receiving surfaces is projected to the virtual plane.

2. 发明授权

US10066751B2 Valve device 有权
公开(公告)号：US10066751B2
公开(公告)日：2018-09-04
申请号：US15121201
申请日：2015-06-23
申请人： DENSO CORPORATION
发明人： Naohito Seko , Yoshiaki Yamamoto , Shinichi Yokoyama , Yuuji Nakano , Ryo Sano
IPC分类号： F16K31/04 , F16K11/087 , F16K5/06 , F16K5/20
摘要： A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening Φ2 is smaller than a diameter of the valve opening Φ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

3. 发明授权

US12135095B2 Valve device 有权
公开(公告)号：US12135095B2
公开(公告)日：2024-11-05
申请号：US18190514
申请日：2023-03-27
申请人： DENSO CORPORATION
发明人： Ryo Sano
IPC分类号： F16K3/34 , F16K3/08 , F16K31/44
CPC分类号： F16K3/34 , F16K3/08 , F16K31/44
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 first torsion spring is placed between the housing and the shaft and urges the shaft relative to the housing in a circumferential direction around the central axis, and a second torsion spring is placed between the shaft and the lever and urges the lever relative to the shaft in the circumferential direction.

4. 发明授权

US12117089B2 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.

5. 发明授权

US11149627B2 Cooling-water control valve device 有权
公开(公告)号：US11149627B2
公开(公告)日：2021-10-19
申请号：US16779845
申请日：2020-02-03
申请人： DENSO CORPORATION
发明人： Ryo Sano
IPC分类号： F01P7/14 , F16K25/00 , F16K3/26
摘要： A cooling-water control valve device includes a valve member, a housing for accommodating the valve member, a pipe unit, a valve seat member, a spring and so on. The pipe unit has, at its axial end on a side facing to the valve member, an outside cylindrical portion and an inside cylindrical portion, which is coaxially arranged with the outside cylindrical portion at a radial-inside position of the outside cylindrical portion. An annular accommodation space is formed between the inside cylindrical portion and the outside cylindrical portion. The spring and the valve seat member are arranged in the annular accommodation space.

6. 发明授权

US09482160B2 Valve control device 有权
标题翻译：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
申请人： DENSO CORPORATION
发明人： Kazushi Sasaki , Hiroki Shimada , Ryo Sano
IPC分类号： F02D13/02 , F02D41/00
CPC分类号： F02D13/0242 , F02D41/0072 , F02D41/0077 , F02M26/54 , F02M26/66
摘要： 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.
摘要翻译：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。

7. 发明授权

US11608903B2 Valve device 有权
公开(公告)号：US11608903B2
公开(公告)日：2023-03-21
申请号：US17345082
申请日：2021-06-11
申请人： DENSO CORPORATION
发明人： Naohito Seko , Yoshiaki Yamamoto , Shinichi Yokoyama , Yuuji Nakano , Ryo Sano
IPC分类号： F16K11/087 , F01P7/14 , F16K5/06 , F16K5/20 , F16K31/04
摘要： A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening Φ2 is smaller than a diameter of the valve opening Φ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

8. 发明授权

US11306645B2 Cooling water control valve device 有权
公开(公告)号：US11306645B2
公开(公告)日：2022-04-19
申请号：US16985698
申请日：2020-08-05
申请人： DENSO CORPORATION
发明人： Ryo Sano , Yosuke Tanaka
IPC分类号： F01P7/14 , F16K3/26 , E21B33/038 , F16L25/12
摘要： A housing unit includes a cylindrical passage member, through which cooling water flows. A valve unit includes a valve main body rotatable around its axis and a valve opened portion formed in an outer peripheral surface of the valve main body, through which the cooling water can pass. A valve seat unit includes a positioned member and a valve seat surface. An outer peripheral surface of the positioned member is positioned in a radial direction by an inner peripheral surface of the cylindrical passage member and the positioned member is movable in an axial direction in a reciprocal manner. The valve seat surface holds a fluid tight condition between the valve seat surface and the valve main body when it is in contact with the outer peripheral surface of the valve main body. A biasing member biases the valve seat unit in such a way that the valve seat surface is pushed to the outer peripheral surface of the valve main body. The cylindrical passage member includes a groove formed in an inner peripheral surface thereof at least in a part of an overlapping area, at which the cylindrical passage member and the positioned member overlap each other in the axial direction. The groove is recessed in a radial-outward direction from the inner peripheral surface.

9. 发明授权

US10808848B2 Valve device 有权
公开(公告)号：US10808848B2
公开(公告)日：2020-10-20
申请号：US16051517
申请日：2018-08-01
申请人： DENSO CORPORATION
发明人： Naohito Seko , Yoshiaki Yamamoto , Shinichi Yokoyama , Yuuji Nakano , Ryo Sano
IPC分类号： F16K5/06 , F16K5/20 , F16K11/087 , F16K31/04
摘要： A valve device includes: a ball valve having a ball face shaped in a convex spherical surface; and a valve seat having a seat face shaped in a concave spherical surface. The seat face is pressed onto the ball face. The ball valve is rotated to open a valve by communicating a valve opening defined in the ball valve and a seat opening defined in the valve seat with each other, and to close the valve by stop the communication. A diameter of the seat opening ϕ2 is smaller than a diameter of the valve opening ϕ1. A curvature radius of the ball face R1 is smaller than or equal to a curvature radius of the seat face is R2.

10. 发明授权

US09500162B2 Valve apparatus 有权
标题翻译：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
申请人： DENSO CORPORATION
发明人： Kazushi Sasaki , Ryo Sano , Satoshi Ishigaki , Hiroki Shimada
IPC分类号： F02M25/07 , F16K31/04 , F16K37/00 , F16K31/524
CPC分类号： F02M26/54 , F16K31/042 , F16K31/047 , F16K31/52408 , F16K37/0083
摘要： 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.
摘要翻译：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。

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