公开(公告)号：US10584703B2

公开(公告)日：2020-03-10

申请号：US15388522

申请日：2016-12-22

Applicant: Showa Corporation

Inventor： Toshio Nishikawa

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C15/06 ,  F04C29/12 ,  F01C21/08 ,  F04C2/344

Abstract: An embodiment provides a vane pump device includes multiple vanes; a rotor that includes vane grooves which movably support the vanes and which are formed with columnar grooves accommodating oil on rotation center side, and that rotates due to a rotating force received from a rotation shaft; a cam ring that surrounds the rotor; and an inner plate that is disposed on one end portion side of the cam ring in a direction of a rotation axis to cover an opening of the cam ring. The inner plate includes a first portion that is provided to face the grooves, and supplies low pressure oil to the grooves, and a second portion which is provided to face the grooves, supplies high pressure oil to the grooves, and has a width in a radial direction of rotation which is different from that of the first portion in the radial direction of rotation.

公开(公告)号：US10457109B2

公开(公告)日：2019-10-29

申请号：US15203453

申请日：2016-07-06

Applicant: Showa Corporation

Inventor： Yosuke Murakami ,  Fumiaki Ishikawa ,  Hiroyuki Miyata

IPC: B60G17/00 ,  B60G17/019 ,  B60G17/015 ,  B60G17/027

Abstract: A vehicle height adjustment device includes an actuator, a detector, and a controller. The actuator is driven when supplied with a current and is configured to change a relative position of a body of a vehicle relative to an axle of a wheel of the vehicle. The detector is configured to detect the relative position. The controller is configured to control the current supplied to the actuator to make the relative position a target value so as to adjust a vehicle height of the body. When a detection value of the detector is smaller than the target value of the relative position, the controller is configured to alternately supply an increase current and a maintenance current to the actuator. The increase current increases the relative position to increase the vehicle height. The maintenance current maintains the relative position to maintain the vehicle height.

公开(公告)号：US10400843B2

公开(公告)日：2019-09-03

申请号：US15295861

申请日：2016-10-17

Applicant: Showa Corporation

Inventor： Kojiro Yoshida

IPC: F16F9/18 ,  F16F13/06 ,  F16F9/08 ,  F16F9/084 ,  F16F9/58 ,  F16F9/49 ,  F16F9/06 ,  B62K25/28 ,  B62K25/08

Abstract: A damper includes a cylinder, a piston, a piston rod, a rod-side fluid chamber, a piston-side fluid chamber, an annular fluid chamber, and a stopper mechanism. The cylinder includes an inner tube and an outer tube. The rod-side fluid chamber is defined by the piston in the inner tube on a lower end side. The piston-side fluid chamber is defined by the piston in the inner tube on an upper end side. The annular fluid chamber is between the inner and outer tubes. At least one communication hole communicates the rod-side fluid chamber with the annular fluid chamber. A communication passage communicates the rod-side fluid chamber with the annular fluid chamber. A check valve in the communication passage allows fluid to flow from the annular fluid chamber to the rod-side fluid chamber and disallows the fluid to flow from the rod-side fluid chamber to the annular fluid chamber.

公开(公告)号：US10369858B2

公开(公告)日：2019-08-06

申请号：US15466155

申请日：2017-03-22

Applicant: Showa Corporation

Inventor： Takumi Morita ,  Hiroaki Kurihara ,  Masaki Sugimoto

IPC: B60G17/015 ,  B60G17/018 ,  B60G17/019 ,  B60G17/08 ,  B60G17/00

Abstract: A suspension controller includes a target current setting unit, a current limitation setting unit, a current outputting unit, a current detector, and an estimated temperature calculator. The target current setting unit sets a target current value. The current limitation setting unit sets a current limitation value. The current outputting unit supplies a solenoid with a current that is based on the target current value, the current limitation value, and a power supply voltage. The solenoid controls a damping force of a suspension. The current detector detects a current value of the current supplied to the solenoid. The estimated temperature calculator calculates an estimated temperature of the solenoid based on the current value detected by the current detector so that the current limitation setting unit changes the current limitation value based on the estimated temperature.

公开(公告)号：US10364882B2

公开(公告)日：2019-07-30

申请号：US15215842

申请日：2016-07-21

Applicant: Showa Corporation

Inventor： Shingo Ishige

IPC: F16H57/08 ,  B62D5/00 ,  F16H1/28 ,  F16D11/16 ,  F16D27/118

Abstract: A clutch for use in a steer-by-wire steering device for a vehicle is configured to switch between mechanically coupling and uncoupling a torque transmission path between a steering member operated by a driver and a wheel-turning unit configured to turn wheels. The clutch includes a position change member and a conduction path. The position change member is configured to change between a first position and a second position to switch between mechanically coupling and uncoupling the torque transmission path. The conduction path includes two points that come into contact with or separate from each other in accordance with positional change of the position change member. The conduction path is connected to an electric circuit configured to detect a change in a resistance value of the conduction path.

公开(公告)号：US10315722B2

公开(公告)日：2019-06-11

申请号：US15463851

申请日：2017-03-20

Applicant: Showa Corporation

Inventor： Yosuke Murakami ,  Hiroyuki Miyata

IPC: F16F9/56 ,  B62K25/08 ,  B60G11/56 ,  B60G17/048 ,  B62K25/04

Abstract: A flow path control device according to one embodiment includes a first valve which transitions between a closed state where a first flow is closed and an open state where the first flow path is open by moving toward an space from the closed state. The first valve is formed with an axial through-hole that communicates with the first flow path and the space. A pressure-receiving area of the first valve against a jack chamber is smaller than that against the space. Further, a second valve is provided in the space on a second flow path so as to transition between a first state where the axial through-hole is closed and an inflow path oriented toward the space from the jack chamber is open and a second state where it is closed and the axial through-hole is open.

公开(公告)号：US20190161137A1

公开(公告)日：2019-05-30

申请号：US16321371

申请日：2017-01-31

Applicant: Showa Corporation

Inventor： Yasuhiro AOKI

IPC: B62K25/08

Abstract: A front fork includes a first shock absorber and a second shock absorber disposed respectively on both sides of a vehicle wheel. The first shock absorber includes a set of tubes configured to slide relative to each other; damping force generation parts configured to generate a damping force in accordance with the sliding of the tubes; and a spring configured to urge the set of tubes in a stretching direction. The second shock absorber includes a set of tubes configured to slide relative to each other; and a coil spring configured to urge the set of tubes in the stretching direction.

公开(公告)号：US10286975B2

公开(公告)日：2019-05-14

申请号：US15463756

申请日：2017-03-20

Applicant: Showa Corporation

Inventor： Hiroyuki Miyata ,  Yosuke Murakami

IPC: F16F1/12 ,  B60G11/56 ,  B62K25/04 ,  B62K25/08 ,  B60G17/048

Abstract: A flow path control device according to one embodiment includes a first valve, a unit main body and a control valve. The unit main body has an accommodation portion, a first radial communication hole and a side recess portion. The accommodation portion is recessed from a chamber accommodating the oil to cause the first valve to close the first radial communication hole. The side recess portion is recessed from the chamber so as to be continuous to the accommodation portion and not to be continuous to the first radial communication hole. The control valve is movable in the accommodation portion of the unit main body between a position at which a groove of the control valve communicates with the side recess portion and the first radial communication hole and a position at which the groove does not communicate with them.

公开(公告)号：US10214070B2

公开(公告)日：2019-02-26

申请号：US15468777

申请日：2017-03-24

Applicant: Showa Corporation

Inventor： Takahiro Kasuga ,  Takahiro Koresawa ,  Masayoshi Ikeda

IPC: B62K25/04 ,  B62K25/08 ,  B60G17/016 ,  B60G17/019 ,  B60G17/0185

Abstract: A vehicle height adjustment device includes a changer, a vehicle height controller, and a malfunction detector. The changer is configured to change a relative position of a body of a vehicle relative to an axle of a wheel of the vehicle. The vehicle height controller is configured to change the relative position based on a detection value detected by a detector configured to detect the relative position so as to control a vehicle height, which is a height of the body. The malfunction detector is configured to detect a malfunction in at least one of the changer and the detector, the malfunction causing the vehicle height controller to continue to control the vehicle height to increase.

公开(公告)号：US10167985B2

公开(公告)日：2019-01-01

申请号：US15335008

申请日：2016-10-26

Applicant: Showa Corporation

Inventor： Gota Nakano

IPC: F16L55/04 ,  F16L55/05 ,  F16F9/348 ,  F16F9/18 ,  F16F9/32

Abstract: One embodiment discloses a pressure buffer device, which includes a pipe-shaped member that stores fluid, and a partitioning member that is movably provided in the pipe-shaped member to partition its space into a first space and a second space. The pressure buffer device further includes a fluid reservoir portion that is arranged at the a radial outer side of the pipe-shaped member to store fluid, and a communication path that is arranged at a radial outer side of the fluid reservoir portion to communicate between the first space and the second space.