公开(公告)号：US20140311464A1

公开(公告)日：2014-10-23

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。

公开(公告)号：US20130333648A1

公开(公告)日：2013-12-19

申请号：US13914998

申请日：2013-06-11

Applicant: DENSO CORPORATION

Inventor： Kazushi SASAKI ,  Hiroki SHIMADA ,  Ryo SANO

IPC: F02D13/02

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。

公开(公告)号：US20240288086A1

公开(公告)日：2024-08-29

申请号：US18658010

申请日：2024-05-08

Applicant: DENSO CORPORATION

Inventor： Atsushi TANAKA ,  Yasuo KATO ,  Ryo SANO

IPC: F16K27/04 ,  F16K3/08

CPC classification number: F16K27/04 ,  F16K3/08

Abstract: A boss is shaped in a tubular form and is injection molded integrally with a housing that forms a flow passage. A ring member is press-fitted to an inner peripheral wall of the boss. A shaft placed on a radially inner side of the ring member is configured to be rotated about a central axis. A movable valve is coupled to a portion of the shaft and is configured to adjust a size of a cross-sectional area of a passage opening at the flow passage. Each of gate marks of the housing is a trace of a site of the housing where molten resin is injected at a time of injection molding of the housing. Each of ribs radially inwardly projects from the inner peripheral wall of the boss and is placed at a corresponding location of the boss which is between adjacent two of the gate marks.

公开(公告)号：US20240003440A1

公开(公告)日：2024-01-04

申请号：US18469291

申请日：2023-09-18

Applicant: DENSO CORPORATION

Inventor： Ryo SANO ,  Shota KIMURA ,  Takehito MIZUNUMA

IPC: F16K11/074 ,  F16K27/04

CPC classification number: F16K11/074 ,  F16K27/045

Abstract: In a valve device, a housing has a mounting portion that contacts a back surface of a stationary disk which is opposite to a contact surface of the stationary disk while the contact surface is opposed to a rotor. One of the stationary disk and the mounting portion has a receiving groove that receives a gasket which seals a gap between the stationary disk and the mounting portion. The gasket has: two seal surfaces that are opposed to the stationary disk and the mounting portion, respectively; and at least one lateral projection that is opposed to a groove lateral surface of the receiving groove and projects toward the groove lateral surface. The gasket is press-fitted into the receiving groove in a state where the at least one lateral projection is in contact with the groove lateral surface.

公开(公告)号：US20230279958A1

公开(公告)日：2023-09-07

申请号：US18194220

申请日：2023-03-31

Applicant: DENSO CORPORATION

Inventor： Takehito MIZUNUMA ,  Shota KIMURA ,  Ryo SANO ,  Hiroki SHIMADA

IPC: F16K11/085 ,  F16K27/06

CPC classification number: F16K11/0856 ,  F16K27/065

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.

公开(公告)号：US20210301930A1

公开(公告)日：2021-09-30

申请号：US17345082

申请日：2021-06-11

Applicant: DENSO CORPORATION

Inventor： Naohito SEKO ,  Yoshiaki YAMAMOTO ,  Shinichi YOKOYAMA ,  Yuuji NAKANO ,  Ryo SANO

IPC: F16K5/06 ,  F16K5/20 ,  F16K11/087 ,  F16K31/04

Abstract: 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.

公开(公告)号：US20240003439A1

公开(公告)日：2024-01-04

申请号：US18469283

申请日：2023-09-18

Applicant: DENSO CORPORATION

Inventor： Naoki ASANO ,  Takuya HAMADA ,  Atsushi TANAKA ,  Ryo SANO

IPC: F16K11/074 ,  F16K31/04 ,  F01P3/20

CPC classification number: F16K11/074 ,  F16K31/041 ,  F01P3/20

Abstract: A valve device may include: a shaft which has a shaft central axis; a stationary disk; a rotor; a housing which has a housing central axis and an opening; a housing cover which closes the opening; and a seal member. The seal member is eccentric with respect to the shaft central axis in conformity with the amount of eccentricity between the shaft central axis and the housing central axis. A valve device may include: a drive device; a shaft which has a shaft central axis; a stationary disk; a rotor; a housing which has a housing central axis and an opening; a drive device case which closes the opening and receives the drive device; and a seal member. The seal member is eccentric with respect to the shaft central axis in conformity with the amount of eccentricity between the shaft central axis and the housing central axis.

公开(公告)号：US20230243432A1

公开(公告)日：2023-08-03

申请号：US18295401

申请日：2023-04-04

Applicant: DENSO CORPORATION

Inventor： Naoki ASANO ,  Ryo SANO ,  Atsushi TANAKA ,  Takehito MIZUNUMA ,  Takuya HAMADA

IPC: F16K11/074 ,  F16K31/04

CPC classification number: F16K11/074 ,  F16K31/043

Abstract: A valve device includes a housing, a stationary valve and a drive valve. The stationary valve is placed in a fluid passage of the housing. The stationary valve forms a first passage, which conducts fluid, and a penetrating chamber which penetrates through the stationary valve in the axial direction. The drive valve is placed on one axial side of the stationary valve in the fluid passage and forms a second passage which conducts the fluid. The drive valve communicates the second passage to the first passage through rotation of the drive valve. The housing has a bottom portion that covers the penetrating chamber from another axial side. An upstream passage of the fluid passage, which is located on an upstream side of the drive valve and the stationary valve in a flow direction of the fluid, is communicated with the penetrating chamber through a communication passage.

公开(公告)号：US20200284362A1

公开(公告)日：2020-09-10

申请号：US16805982

申请日：2020-03-02

Applicant: DENSO CORPORATION

Inventor： Koji HASHIMOTO ,  Naohito SEKO ,  Ryo SANO

IPC: F16K11/087 ,  F16K5/06 ,  F16K31/12

Abstract: 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.

公开(公告)号：US20190186641A1

公开(公告)日：2019-06-20

申请号：US16282332

申请日：2019-02-22

Applicant: DENSO CORPORATION

Inventor： Naohito SEKO ,  Yoshiaki YAMAMOTO ,  Shinichi YOKOYAMA ,  Yuuji NAKANO ,  Ryo SANO

IPC: F16K5/06 ,  F16K31/04 ,  F16K5/20 ,  F16K11/087

CPC classification number: F16K5/0663 ,  F16K5/0689 ,  F16K5/201 ,  F16K11/0876 ,  F16K31/041

Abstract: 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.