公开(公告)号：US20200217254A1

公开(公告)日：2020-07-09

申请号：US16736110

申请日：2020-01-07

Applicant: DENSO CORPORATION

Inventor： Naoaki KONO ,  Etsugo YANAGIDA ,  Masashi YAMAGUCHI ,  Tetsuji YAMANAKA ,  Atsushi TANAKA ,  Kunio NAMBA

IPC: F02D41/00 ,  F16H1/20 ,  F16H57/021 ,  F16H57/00 ,  F02D23/00 ,  G01D5/14

Abstract: An actuator is provided for driving a turbocharging pressure control valve of a turbocharger. The actuator comprises a motor, an output shaft and a speed reduction mechanism for transmitting rotation of the motor to the output shaft by reducing a rotation speed. The speed reduction mechanism includes at least one gear having a shaft hole, a support shaft inserted into the shaft hole and holding the gear rotatably, and wall portions provided at both ends of the support shaft in a manner sandwiching the gear. The speed reduction mechanism further includes a wear powder holding portion provided radially outside an outer periphery of the support shaft and in at least one of two end portions of the shaft hole and the wall portions in a manner to hold wear powder or foreign substance without scattering.

公开(公告)号：US20180172120A1

公开(公告)日：2018-06-21

申请号：US15736440

申请日：2016-06-07

Applicant: DENSO CORPORATION

Inventor： Naoaki KOUNO ,  Hiroki SHIMADA ,  Tetsuji YAMANAKA ,  Etsugo YANAGIDA

IPC: F16H19/00 ,  H02K7/116 ,  H02K11/215 ,  F16H1/06 ,  F16H57/021 ,  F16H57/031 ,  F02B37/18 ,  F16K31/04

CPC classification number: F16H19/001 ,  F02B37/186 ,  F16H1/06 ,  F16H57/021 ,  F16H57/031 ,  F16H57/032 ,  F16H2057/02034 ,  F16H2057/02082 ,  F16K31/043 ,  H02K5/04 ,  H02K5/225 ,  H02K7/116 ,  H02K11/215 ,  Y02T10/144

Abstract: Positioning of a cover relative to a housing is made at two locations. i.e., fitting between a first intermediate shaft and a first recess and fitting between a second intermediate shaft and a second recess. In this way, a load of the cover is not conducted to an output shaft through a cover-side bearing. Therefore, in a state where the cover is fixed to the housing, an excessively large load is not generated between a cover-side bearing and the output shaft and a housing-side bearing and the output shaft.

公开(公告)号：US20180066964A1

公开(公告)日：2018-03-08

申请号：US15809301

申请日：2017-11-10

Applicant: DENSO CORPORATION

Inventor： Naoaki KOUNO ,  Tetsuji YAMANAKA

IPC: G01D5/14 ,  G01B7/30

CPC classification number: G01D5/145 ,  G01B7/30

Abstract: A position detector includes a magnet disposed between first ends of first and second magnetic flux transmission parts and a magnet disposed between second ends of the first and second magnetic flux transmission parts. The position detector also includes a Hall IC that is positioned within a gap and moves relative to a rotating body. The Hall IC detects a density of the magnetic flux from the first and second magnetic flux transmission parts and outputs a signal according to the density of the magnetic flux passing therethrough in order to detect a position of a detection object. A minimum magnetic flux density position within the gap may be shifted to a position having the highest detection accuracy such that the position detection accuracy of the detection object is improved.

公开(公告)号：US20150185047A1

公开(公告)日：2015-07-02

申请号：US14576568

申请日：2014-12-19

Applicant: DENSO CORPORATION

Inventor： Naoaki KOUNO ,  Tetsuji YAMANAKA

IPC: G01D5/14

CPC classification number: G01D5/145

Abstract: Each of a first yoke and a second yoke has an intermediate portion between one end portion and the other end portion of the yoke. When the first and second yokes are viewed in an opposing direction, a width of the intermediate portion of each yoke, which is measured in a direction perpendicular to a rotational direction, is smaller than a width of the one end portion and a width of the other end portion of the yoke and is constant along an entire extent of the intermediate portion in the rotational direction.

Abstract translation: 第一轭和第二轭中的每一个在轭的一个端部和另一个端部之间具有中间部分。 当在相反方向上观察第一和第二轭时，在与旋转方向垂直的方向上测量的每个轭的中间部分的宽度小于一个端部的宽度和 轭的另一端部沿着旋转方向的中间部分的整个范围是恒定的。

公开(公告)号：US20140354268A1

公开(公告)日：2014-12-04

申请号：US14291289

申请日：2014-05-30

Applicant: DENSO CORPORATION

Inventor： Naoaki KOUNO ,  Tetsuji YAMANAKA ,  Yoshiyuki KONO

IPC: G01B7/14

CPC classification number: G01B7/14 ,  G01D5/147

Abstract: A position sensing device has a first magnetic flux transmission unit that includes first thin boards made of long shape magnetic material stacked along a board thickness direction and a second magnetic flux transmission unit that includes second thin boards made of long shape magnetic material stacked along the board thickness direction, for defining a gap space between the first and second magnetic flux transmission units when disposing the first and second magnetic flux transmission units on a rotating body. Further, the position sensing device includes first and second magnets disposed between both ends of the first and second magnetic flux transmission units. A Hall IC disposed on a mold part moves within the gap space along a gap space longitudinal direction relative to the rotating body for outputting a signal according to a density of a magnetic flux passing therethrough.

Abstract translation: 位置检测装置具有第一磁通传递单元，该第一磁通传输单元包括沿着板厚度方向堆叠的由长形磁性材料制成的第一薄板和第二磁通传输单元，该第二磁通传输单元包括沿着该板堆叠的由长形磁性材料制成的第二薄板 用于当将第一和第二磁通量传递单元设置在旋转体上时，限定第一和第二磁通量传递单元之间的间隙空间。 此外，位置检测装置包括设置在第一和第二磁通传输单元的两端之间的第一和第二磁体。 设置在模具部件上的霍尔IC相对于旋转体沿间隙空间长度方向在间隙空间内移动，以根据通过其的磁通密度输出信号。

公开(公告)号：US20140184204A1

公开(公告)日：2014-07-03

申请号：US14142434

申请日：2013-12-27

Applicant: DENSO CORPORATION

Inventor： Naoaki KOUNO ,  Tetsuji YAMANAKA

IPC: G01B7/14 ,  G01R33/07

CPC classification number: G01B7/14 ,  G01B7/003 ,  G01B7/30 ,  G01D5/145 ,  G01D5/24433 ,  G01R33/072

Abstract: A position detector has a gap for providing a detection range. The gap has a gap width that is greater at the ends of the gap than at a center. Therefore, an amount of a spill magnetic flux and an amount of a direct magnetic flux respectively flowing through a position at and around an end portion of the gap are reduced when compared to a gap having a constant gap width along the direction of relative movement. Namely, the density of magnetic flux which passes through a Hall element that is positioned at each longitudinal end of the gap decreases. Therefore, at or around the ends of the gap, a rate of change of the magnetic flux density detected by the Hall element decreases and the linearity of an output signal from the Hall element is improved.

Abstract translation: 位置检测器具有用于提供检测范围的间隙。 该间隙具有在间隙的端部比在中心处更大的间隙宽度。 因此，与沿着相对移动方向具有恒定的间隙宽度的间隙相比，分别流过间隙端部周围的位置的溢出磁通量和直流磁通量减少。 即，通过位于间隙的每个纵向端部的霍尔元件的磁通密度减小。 因此，在间隙的端部或其周围，由霍尔元件检测的磁通密度的变化率降低，并且来自霍尔元件的输出信号的线性提高。