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公开(公告)号：US20200232401A1
公开(公告)日：2020-07-23
申请号：US16842108
申请日：2020-04-07
Applicant: DENSO CORPORATION
Inventor： Masashi YAMAGUCHI , Tetsuji YAMANAKA , Kunio NAMBA , Naoaki KONO , Atsushi TANAKA
Abstract: An actuator drives a boost pressure control valve of a supercharger of an engine and includes an electric motor, an output shaft, a speed reducer, a rotational angle sensor and a housing. The speed reducer includes three pairs of metal gears and is configured to reduce a speed of rotation outputted from the electric motor and transmit the rotation to the output shaft. The rotational angle sensor includes a magnetic circuit device and a sensing device and senses a rotational angle of the output shaft. The housing receives the metal gears and the magnetic circuit device in a common space and supports the output shaft. In an installed state of the actuator where the actuator is installed to the engine, a meshing portion of the metal gears is located on a lower side of a magnetic circuit lowest point in the gravity direction.
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公开(公告)号：US20200217410A1
公开(公告)日：2020-07-09
申请号：US16736210
申请日：2020-01-07
Applicant: DENSO CORPORATION
Inventor： Masashi YAMAGUCHI , Etsugo YANAGIDA , Tetsuji YAMANAKA , Atsushi TANAKA , Naoaki KONO , Kunio NAMBA
IPC: F16H57/02 , F16H57/032 , H02K7/116 , F16H1/22
Abstract: An actuator includes an electric motor, an output shaft and a speed reducer. The speed reducer is configured to transmit rotation, which is outputted from the motor, to the output shaft after reducing a speed of the rotation outputted from the motor. The speed reducer includes an output gear joined to the output shaft and a compound gear. The compound gear includes a large diameter gear, which has a plurality of large gear teeth, and a small diameter gear, which has a plurality of small gear teeth. One of the large diameter gear and the small diameter gear is a metal gear, which is made of a metal member, while another one of the large diameter gear and the small diameter gear is a resin gear, which is made of a resin member, and the resin gear is integrally molded together with the metal gear in one piece.
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公开(公告)号：US20200217255A1
公开(公告)日：2020-07-09
申请号：US16736182
申请日：2020-01-07
Applicant: DENSO CORPORATION
Inventor： Masashi YAMAGUCHI , Etsugo YANAGIDA , Naoaki KONO , Tetsuji YAMANAKA , Atsushi TANAKA , Kunio NAMBA
Abstract: An actuator is configured to drive a boost pressure control valve of a supercharger. The actuator includes: an electric motor; an output shaft; and a speed reducer that is configured to transmit rotation, which is outputted from the electric motor, to the output shaft after reducing a speed of the rotation outputted from the electric motor. The speed reducer has a plurality of gears that include an output gear joined to the output shaft. The plurality of gears further includes a metal gear and a resin gear of a compound gear, which are respectively formed as a large diameter gear and a small diameter gear and are integrated together in one piece. The output gear is a resin gear.
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公开(公告)号：US20180191221A1
公开(公告)日：2018-07-05
申请号：US15736804
申请日：2016-06-07
Applicant: DENSO CORPORATION
Inventor： Naoaki KOUNO , Hiroki SHIMADA , Tetsuji YAMANAKA , Etsugo YANAGIDA
IPC: H02K5/22 , H02K7/116 , H02K7/08 , H02K7/14 , H02K11/215
CPC classification number: H02K5/22 , F16H1/06 , F16H57/03 , F16H57/032 , F16H2057/02034 , F16H2057/02082 , H02K5/04 , H02K5/225 , H02K7/088 , H02K7/116 , H02K7/14 , H02K11/215
Abstract: A plurality of reinforcing ribs, which extend from a cover-side bearing in an outer radial direction, is formed at a portion of a cover, at which a reaction force generated in response to operation of an electric actuator is applied. The reinforcing ribs can improve strength of the portion of the cover, at which the reaction force is applied. Therefore, it is possible to avoid a damage, such as deformation, a crack, at the resin cover caused by the reaction force applied to the cover.
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公开(公告)号：US20180187791A1
公开(公告)日：2018-07-05
申请号：US15736477
申请日：2016-06-07
Applicant: DENSO CORPORATION
Inventor： Tetsuji YAMANAKA , Naoaki KOUNO , Hiroki SHIMADA , Etsugo YANAGIDA
IPC: F16K31/04 , F02B37/18 , F16H57/031 , F16H19/00 , F16H21/44 , H02K15/14 , H02K5/173 , H02K5/22 , H02K5/24 , H02K7/116 , H02K11/215
Abstract: A housing includes an opening portion, which opens in one direction. At the time of assembling, the opening portion of the housing is placed to face an upper side. Then, a wave washer, an electric motor and screws for motor fixation are assembled from the upper side, and a first intermediate shaft and a second intermediate shaft are press-fitted, and a lower bearing, an output shaft, a second intermediate gear, a first intermediate gear are assembled. Thereafter, a cover is installed from the upper side to the housing. Next, an actuator lever is connected to a distal end part of the output shaft. As discussed above, the electric actuator can be assembled without inverting an orientation of the housing, and thereby productivity can be improved.
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Patent Agency Ranking
公开(公告)号：US20240295895A1
公开(公告)日：2024-09-05
申请号：US18664599
申请日：2024-05-15
Applicant: DENSO CORPORATION
Inventor： Soichi KINOUCHI , Yuusuke YOSHIDA , Tetsuji YAMANAKA , Takuto KITA , Yuta FUJINAKA
Abstract: An accelerator device includes a pedal lever, a power transmission mechanism, and a control unit. The pedal lever is movable in response to a pedal depression operation, and is biased in a return direction by a pedal biasing member. The power transmission mechanism includes an actuator lever that is contactable with the pedal lever and is biased in the return direction of the pedal lever by an actuator lever biasing member, and is capable of applying a reaction force to the pedal lever, which is a force in the return direction by a driving force of a drive source via the actuator lever. The control unit controls energization of the drive source, and performs a brake control in which a return speed of the actuator lever is reduced when the pedal lever returns to a fully closed direction.
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公开(公告)号：US20200309024A1
公开(公告)日：2020-10-01
申请号：US16902571
申请日：2020-06-16
Applicant: DENSO CORPORATION
Inventor： Etsugo YANAGIDA , Tetsuji YAMANAKA
Abstract: An actuator includes an electric motor, an output shaft and an output lever. The output lever is fixed to one end portion of the output shaft, which is located at an outside of a housing. The output lever includes a cylindrical hole, through which a cylindrical portion of the output shaft is received, and a cutout, which is radially outwardly recessed from the cylindrical hole. A part of an inner wall surface of the cutout, which is connected to an inner wall surface of the cylindrical hole, is defined as a root corner. The root corner is shaped in a convex curved surface form in a view taken in an axial direction of the cylindrical hole.
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公开(公告)号：US20180259088A1
公开(公告)日：2018-09-13
申请号：US15736812
申请日：2016-06-07
Applicant: DENSO CORPORATION
Inventor： Tetsuji YAMANAKA , Naoaki KOUNO , Etsugo YANAGIDA , Hiroki SHIMADA
Abstract: A rotation stop shape is visually recognizable through an exposing hole. A relative angle between an output shaft and an actuator lever can be freely set while the rotation stop shape, which is visually recognizable through the exposing hole, is used as the reference angle of the output shaft. Therefore, it is possible to limit disadvantageous variations in a fixation angle of the actuator lever. The fixation angle of the actuator lever relative to the output shaft can be freely changed by using the rotation stop shape, which is visually recognizable through the exposing hole, as a reference angle of the output shaft.
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公开(公告)号：US20150184584A1
公开(公告)日：2015-07-02
申请号：US14576612
申请日：2014-12-19
Applicant: DENSO CORPORATION
Inventor： Tomonobu KURODA , Tetsuji YAMANAKA , Naoaki KOUNO
IPC: F02B37/18 , F16H57/021 , F16H1/32
CPC classification number: F02B37/186 , F16H1/32 , F16H57/021 , F16H2001/325 , F16H2057/02034 , F16H2057/02082 , H02K7/116 , Y02T10/144
Abstract: A first internal gear of a speed reducer includes an internally-toothed portion and a bearing portion and is formed as a one-piece member that is formed separately from a first housing. The internally-toothed portion forms internal teeth, which are meshed with external teeth of a first planetary gear. The bearing portion includes an eleventh cylindrical surface, which supports a motor shaft. The internal teeth of the first internal gear are arranged coaxial with the eleventh cylindrical surface. The internal teeth of the first internal gear and the bearing portion are formed as portions of the one-piece member.
Abstract translation: 减速器的第一内齿轮包括内齿部和轴承部，并且形成为与第一壳体分开形成的一体式构件。 内齿部形成与第一行星齿轮的外齿啮合的内齿。 轴承部分包括支撑电动机轴的第十一圆柱形表面。 第一内齿轮的内齿与第十一圆柱面同轴配置。 第一内齿轮和轴承部分的内齿形成为单件构件的部分。
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公开(公告)号：US20140187373A1
公开(公告)日：2014-07-03
申请号：US14142133
申请日：2013-12-27
Applicant: DENSO CORPORATION
Inventor： Tetsuji YAMANAKA , Osamu Sato , Naoaki Kouno
CPC classification number: H02K7/116 , F16H1/32 , H02K11/215
Abstract: A rotation driving device includes a motor provided in a housing, a planetary gear reducer connected to the motor coaxially with the motor, an output shaft connected to an end reduction member of the planetary gear reducer coaxially with the end reduction member, and a rotation detector located at the same position as the end reduction member in an axial direction of the planetary gear reducer and located at a different position from a center axis of the end reduction member in a radial direction of the planetary gear reducer, the rotation detector being capable of detecting a degree of rotation of the end reduction member. Accordingly, the rotation driving device can be made to be smaller and compact in the axial direction.
Abstract translation: 旋转驱动装置包括设置在壳体中的马达，与马达同轴地连接到马达的行星齿轮减速器，与端部减速构件同轴地连接到行星齿轮减速器的端部减速构件的输出轴，以及旋转检测器 位于与行星齿轮减速器的轴向方向上的端部减少构件相同的位置，并且位于与行星齿轮减速器的径向方向上的端部减速构件的中心轴线不同的位置，旋转检测器能够 检测端部还原构件的旋转度。 因此，能够使旋转驱动装置在轴向上变小，紧凑。
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