公开(公告)号：US20230313848A1

公开(公告)日：2023-10-05

申请号：US18327806

申请日：2023-06-01

Applicant: DENSO CORPORATION

Inventor： Tomonori SUZUKI ,  Takumi SUGIURA ,  Akira TAKAGI

IPC: F16D28/00 ,  H02K7/108 ,  H02K7/116

CPC classification number: F16D28/00 ,  H02K7/108 ,  H02K7/116 ,  F16D2127/02

Abstract: A clutch of a clutch device is provided between a first transmission portion and a second transmission portion that are rotatable relative to a housing. A state changing unit is configured to receive a force in an axial direction from a translation portion and change a state of the clutch to an engaged state or a non-engaged state according to a relative position in the axial direction of the translation portion with respect to the housing. An urging member is configured to urge the translation portion in a direction to switch the clutch from the engaged state to the non-engaged state. A retainer member is fixed directly to the housing and is configured to restrict an axial position of the urging member.

公开(公告)号：US20230304545A1

公开(公告)日：2023-09-28

申请号：US18327597

申请日：2023-06-01

Applicant: DENSO CORPORATION

Inventor： Akira TAKAGI ,  Takumi SUGIURA

IPC: F16D28/00 ,  F16H57/08 ,  H02K7/108 ,  H02K7/116

CPC classification number: F16D28/00 ,  F16H57/082 ,  H02K7/108 ,  H02K7/116 ,  F16D2127/02

Abstract: A first drive cam groove extends from a drive cam specific position to one side in a circumferential direction. A second drive cam groove extends from the drive cam specific position to the other side in the circumferential direction, and an inclination angle of a groove bottom with respect to one end surface of the drive cam main body is larger than that of the first drive cam groove. A first driven cam groove extends from a driven cam specific position to one side in a circumferential direction. A second driven cam groove extends from the driven cam specific position to the other side in the circumferential direction, and an inclination angle of a groove bottom with respect to one end surface of the driven cam main body is larger than that of the first driven cam groove.

公开(公告)号：US20220145943A1

公开(公告)日：2022-05-12

申请号：US17582754

申请日：2022-01-24

Applicant: DENSO CORPORATION

Inventor： Akikazu UCHIDA ,  Takumi SUGIURA ,  Akira TAKAGI

IPC: F16D23/12 ,  F16H37/12 ,  H02K7/108 ,  H02K7/116

Abstract: A prime mover includes a stator fixed to a housing, and a rotor rotatable relative to the stator. The prime mover outputs torque from the rotor by being supplied with electric power. A speed reducer reduces the torque of the prime mover and outputs the reduced torque. The speed reducer includes a sun gear to which the torque from the rotor is input, and a planetary gear that revolves in a circumferential direction of the sun gear while rotating in a state of meshing with the sun gear. The rotor and the sun gear are formed separately, and are disposed coaxially so as to be integrally rotatable.

公开(公告)号：US20220145939A1

公开(公告)日：2022-05-12

申请号：US17582482

申请日：2022-01-24

Applicant: DENSO CORPORATION

Inventor： Akira TAKAGI ,  Ryo ISHIBASHI ,  Takumi SUGIURA

IPC: F16D13/46 ,  F16C19/06 ,  F16D13/32 ,  F16D13/52 ,  F16D23/12 ,  F16D25/0638 ,  F16D43/26 ,  F16D48/02 ,  F16D48/06 ,  F16H1/46 ,  F16H25/12

Abstract: A housing includes an accommodation space for a prime mover and a speed reducer. A rotational translation unit includes a rotation portion that rotates relative to the housing upon receiving torque outputted from the speed reducer, and a translation portion that moves relative to the housing in an axial direction according to rotation of the rotation portion. The accommodation space is between the rotation portion and the housing. A clutch in a clutch space allows or interrupts transmission of torque between a first transmission portion and a second transmission portion. The rotation portion is between the clutch space and the accommodation space. A sealing member has an annular shape in contact with the rotation portion, and maintains an air-tight or liquid-tight state between the accommodation space and the clutch space.

公开(公告)号：US20210115980A1

公开(公告)日：2021-04-22

申请号：US17137727

申请日：2020-12-30

Applicant: DENSO CORPORATION

Inventor： Takumi SUGIURA ,  Akira TAKAGI ,  Ryo ISHIBASHI

IPC: F16D13/52 ,  F16H25/12

Abstract: At a drive cam slope groove, a groove bottom is sloped relative to one end surface of a drive cam such that a depth of the groove bottom continuously decreases from one side toward other side in a circumferential direction. At a drive cam planar groove, the groove bottom is parallel to the one end surface of the drive cam. A drive cam connection groove has: one end connected to an end of the drive cam slope groove located on the other side in the circumferential direction of the drive cam; and the other end connected to an end of the drive cam planar groove located on the one side in the circumferential direction. A slope angle of the groove bottom relative to the one end surface of the drive cam continuously changes from the one end to the other end of the drive cam connection groove.

公开(公告)号：US20150346738A1

公开(公告)日：2015-12-03

申请号：US14728207

申请日：2015-06-02

Applicant: DENSO CORPORATION

Inventor： Ryo ISHIBASHI ,  Akira TAKAGI

IPC: G05D16/20 ,  G05B11/42 ,  F16K31/06 ,  F16K3/24 ,  F16K21/04

CPC classification number: F16K31/0675 ,  F16K31/0613 ,  G05D16/202

Abstract: In a method for setting a command-response characteristic of an oil pressure control apparatus for each oil temperature, the command-response characteristic actually measured at a reference oil temperature is treated as a reference I-P characteristic. Then, a stroke-response characteristic is calculated based on the reference I-P characteristic, a thrust-force correlation and a restoring-force correlation. An overlapping length and a clearance width of overlapping areas between a sleeve and a spool of the oil pressure control apparatus are estimated based on the reference I-P characteristic and the stroke-response characteristic. Finally, the command-response characteristics for each oil temperature are decided and set based on the overlapping length and the clearance width.

Abstract translation: 另外，在各油温的油压控制装置的指令响应特性的设定方法中，以基准油温实际测定的指令响应特性为基准I-P特性。 然后，基于参考I-P特性，推力相关性和恢复力相关性来计算行程响应特性。 基于参考I-P特性和行程响应特性来估计油压控制装置的套筒和阀芯之间的重叠区域的重叠长度和间隙宽度。 最后，根据重叠长度和间隙宽度决定和设定每个油温的指令响应特性。

公开(公告)号：US20130192929A1

公开(公告)日：2013-08-01

申请号：US13750040

申请日：2013-01-25

Applicant: DENSO CORPORATION

Inventor： Akira TAKAGI

IPC: F01M1/02

CPC classification number: F01M1/02 ,  F16H57/0404 ,  F16H61/0031 ,  F16H2061/0043

Abstract: An oil-pressure supply device includes an oil-pressure control portion, a first filtration portion which traps foreign materials in oil before a mechanical pump, a second filtration portion which traps foreign materials in oil before an electric pump, a first branch passage provided between the mechanical pump and the first filtration portion, a second branch passage provided between the electric pump and the second filtration portion, a third branch passage provided between a discharge port of the electric pump and the oil-pressure control portion, a fourth branch passage through which surplus oil is discharged, a switching portion set at a first position where the first branch passage is connected to the third branch passage when the first filtration portion is recovered, or set at a second position where the second branch passage is connected to the fourth branch passage when the second filtration portion is recovered.

Abstract translation: 油压供给装置包括油压控制部，在机械泵之前捕集油中的异物的第一过滤部，在电动泵之前捕集油中的异物的第二过滤部，设置在电泵之间的第一分支通路， 所述机械泵和所述第一过滤部分，设置在所述电动泵和所述第二过滤部之间的第二分支通道，设置在所述电动泵的排出口和所述油压控制部之间的第三分支通路， 剩余的油被排出，当第一过滤部分被回收时，设置在第一位置处的第一分支通道连接到第三分支通道的切换部分，或者设置在第二分支通道连接到第四分支通道的第四位置 回收第二过滤部分时的分支通道。