公开(公告)号：US20200089261A1

公开(公告)日：2020-03-19

申请号：US16573074

申请日：2019-09-17

Applicant: DENSO CORPORATION

Inventor： Masaaki KONO ,  Yusuke KIMURA ,  Fukuo KITAGAWA ,  Takahiro TOMEDA ,  Tadayoshi NAKASE ,  Shinichi KONDO ,  Kazuhiro SASAO ,  Masato ARAI ,  Motoyoshi ANDO

IPC: G05D16/20 ,  F16K31/06 ,  G05B19/042

Abstract: A current control device includes a target setting unit, a storage unit, an oil pressure ratio calculation unit, a specific current detection unit and a correction unit. The target setting unit adds a dither amplitude to a target current so that the current of the solenoid periodically changes at a dither cycle period longer than a PWM cycle period of the solenoid. The storage unit stores a stroke-current relationship between a stroke of the spool and the current of the solenoid. The oil pressure ratio calculation unit calculates an oil pressure ratio which is a value calculated by dividing an amplitude of the output oil pressure by an average value of the output oil pressure. The specific current detection unit detects a specific current based on the oil pressure ratio. The correction unit corrects the stroke-current relationship based on the specific stroke and the specific current.

公开(公告)号：US20200088309A1

公开(公告)日：2020-03-19

申请号：US16569965

申请日：2019-09-13

Applicant: DENSO CORPORATION

Inventor： Masaaki KONO ,  Takahiro TOMEDA ,  Fukuo KITAGAWA ,  Yusuke KIMURA ,  Tadayoshi NAKASE ,  Shinichi KONDO ,  Kazuhiro SASAO ,  Masato ARAI ,  Motoyoshi ANDO

IPC: F16K11/07 ,  F16K27/04 ,  F16F1/04 ,  F16K31/56

Abstract: A spool valve unit includes a sleeve member having a high-pressure port and a low-pressure port, a spool member movably accommodated in the sleeve member in an axial direction, and a spring member for biasing the spool member in a first axial direction. The spool valve unit produces an intermediate fluid pressure to be outputted to an outside of the spool valve unit, when electromagnetic force is applied to the spool member so that the spool member is moved at a high speed between the high-pressure port and the low-pressure port. The spring member is composed of a non-linear spring, a biasing force of which is non-linearly changed with respect to a displacement of the spool member.

公开(公告)号：US20150280541A1

公开(公告)日：2015-10-01

申请号：US14633540

申请日：2015-02-27

Applicant: DENSO CORPORATION ,  HAMANAKODENSO CO., LTD.

Inventor： Motoyoshi ANDO ,  Kengo SUZUKI ,  Takao ISHIDA

IPC: H02K99/00

CPC classification number: F16K31/0637 ,  F16K27/0245 ,  F16K27/0263 ,  F16K27/029

Abstract: A solenoid device includes a plunger driven in an axial direction, a wall portion arranged to oppose the plunger in the axial direction, and a respiratory pore cover covering an opening of a respiratory pore of the wall portion. A volume variable chamber is defined between the plunger and the wall portion. The respiratory pore cover defines a communication space communicated to the respiratory pore, and an opening which causes the communication space to communicate with an exterior space. A volume of the communication space is larger than a predetermined volume of fluid that flows through the respiratory pore from or into the volume variable chamber by a predetermined movement of the plunger.

Abstract translation: 螺线管装置包括沿轴向驱动的柱塞，沿轴向方向布置成与柱塞相对的壁部分，以及覆盖壁部分的呼吸孔的开口的呼吸孔盖。 在柱塞和壁部分之间限定体积可变室。 呼吸孔盖限定与呼吸孔连通的连通空间，以及使通信空间与外部空间连通的开口。 连通空间的体积大于通过柱塞的预定移动而从体积可变室流过呼吸孔的预定体积的流体。

公开(公告)号：US20230323949A1

公开(公告)日：2023-10-12

申请号：US18335022

申请日：2023-06-14

Applicant: DENSO CORPORATION

Inventor： Tomohiro TAKAHASHI ,  Kazunori UCHIDA ,  Motoyoshi ANDO

IPC: F16H63/34 ,  F15B15/26 ,  F15B15/18 ,  F04C13/00

CPC classification number: F16H63/3483 ,  F15B15/26 ,  F04C2210/206 ,  F04C13/002 ,  F15B15/18

Abstract: An integrated pump device includes a motor, an oil pump rotated by a driving force of the motor and configured to discharge oil drawn from an oil pan, and a hydraulic actuator configured to switch between an advance state and a retard state by a hydraulic pressure created by the oil pump. The hydraulic actuator is a parking lock actuator, and includes a housing having vane chambers and a vane rotor housed in the housing and including vanes arranged in the vane chambers. The vane rotor is configured to rotate to enter the advance state when the hydraulic pressure is supplied to an advance chamber, and to rotate to enter the retard state when the hydraulic pressure is supplied to a retard chamber. The parking lock actuator locks a parking lock mechanism at the advance state, and unlocks the parking lock mechanism at the retard state.

公开(公告)号：US20190108934A1

公开(公告)日：2019-04-11

申请号：US16154800

申请日：2018-10-09

Applicant: DENSO CORPORATION

Inventor： Kanehisa NAGASAKI ,  Motoyoshi ANDO

IPC: H01F7/13 ,  H01F5/04 ,  H01F7/08

Abstract: In a diameter-increasing portion, which includes first to third angle segments, an A-point is defined as an intersection between a radially outer surface of a thin wall portion and the first angle segment, and a B-point is defined as an intersection between a radially outer surface of a thick wall portion and the third angle segment. Radially outer surfaces of the first to third angle segments are located on a radially outer side of a reference conical surface, which is formed by rotating a straight line connecting between the A-point and the B-point about a central axis, throughout an entire range from the A-point to the B-point. A first angle α, a second angle β, a third angle γ and a reference angle e satisfy relationships of “α≥θ, θ≥γ, θ≥β”, and “α≥γ≥β”.

公开(公告)号：US20150279538A1

公开(公告)日：2015-10-01

申请号：US14669381

申请日：2015-03-26

Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC. ,  HAMANAKODENSO CO., LTD.

Inventor： Shota TODA ,  Shuhei OE ,  Shoji ISOGAI ,  Motoyoshi ANDO ,  Takao ISHIDA ,  Kengo SUZUKI

IPC: H01F7/121 ,  F16H61/00 ,  H01F7/16

CPC classification number: H01F7/121 ,  F16H61/0009 ,  F16H61/0021 ,  F16K31/0665 ,  H01F7/081 ,  H01F7/1607 ,  H01F2007/083

Abstract: In a solenoid of a hydraulic pressure control apparatus, a region adjacent to an oil flow guide portion of a stopper breathing passage is formed in a magnetism application region, through which a leakage magnetic flux leaking from a magnetic circuit at a time of turning on of a coil passes. Thereby, magnetic foreign objects made of iron or iron containing material are magnetically attracted to the leakage magnetic flux, so that intrusion of the foreign objects from an outside of the solenoid into a second volume variable chamber through the stopper breathing passage is limited.

Abstract translation: 在液压控制装置的螺线管中，在磁性施加区域形成有与止动器呼吸通道的油流引导部相邻的区域，在磁性施加区域形成有从磁路泄漏的泄漏磁通， 线圈通过。 因此，由含铁或铁的材料制成的磁性异物被磁力吸引到泄漏磁通，从而限制了通过止动器呼吸通道将异物从螺线管外部侵入第二体积可变室。

公开(公告)号：US20140225693A1

公开(公告)日：2014-08-14

申请号：US14178467

申请日：2014-02-12

Applicant: DENSO CORPORATION

Inventor： Motoyoshi ANDO ,  Thanh Do NGUYEN

IPC: H01F7/08

CPC classification number: H01F7/081 ,  H01F7/1607

Abstract: A stepped portion is formed in an outer peripheral portion of a slide core and is stepped to reduce an outer diameter of one portion of the slide core located on one axial side of the stepped portion. A first conducting portion of a ring core covers an outer peripheral surface of the one portion of the slide core and is slidable along an outer peripheral surface of the one portion of the slide core. The first conducting portion conducts a magnetic flux between the first conducting portion and the slide core in a radial direction. A second conducting portion of the ring core is configured into a form of a flange and radially outwardly extends from the first conducting portion. The second conducting portion conducts the magnetic flux between the second conducting portion and a bottom wall portion of a yoke in an axial direction.

Abstract translation: 台阶部形成在滑动芯的外周部，并且是台阶形的，以减小位于台阶部的一个轴向侧的滑动芯的一部分的外径。 环芯的第一导电部分覆盖滑芯的一部分的外周表面，并且可沿着滑芯的一部分的外周表面滑动。 第一导电部分在径向方向上在第一导电部分和滑动芯体之间传导磁通量。 环形芯的第二导电部分构造成凸缘的形式并且从第一导电部分径向向外延伸。 第二导电部在轴向上导通第二导电部和轭的底壁部之间的磁通。

公开(公告)号：US20140225690A1

公开(公告)日：2014-08-14

申请号：US14178474

申请日：2014-02-12

Applicant: DENSO CORPORATION

Inventor： Motoyoshi ANDO ,  Thanh Do NGUYEN

IPC: H01F7/16

CPC classification number: H01F7/1607 ,  H01F7/127

Abstract: A communication hole is formed in a peripheral wall portion of a yoke. The communication hole communicates between an inside and an outside of the yoke. A gap, which is formed between one end portion of the coil and a bottom wall portion of the yoke, overlaps with the communication hole in an axial direction.

Abstract translation: 在轭的周壁部形成有连通孔。 连通孔在轭的内部和外部连通。 在线圈的一个端部和轭的底壁部之间形成的间隙在轴向上与连通孔重叠。