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公开(公告)号:US20190390670A1
公开(公告)日:2019-12-26
申请号:US16333116
申请日:2017-09-08
Applicant: KYB Corporation
Inventor: Koichiro AKATSUKA , Hiroki GOMI , Fumihiko SOBUE
Abstract: A vane pump includes: a rotor connected to a driving shaft; a plurality of vanes provided so as to be capable of reciprocating in a radial direction with respect to the rotor; a cam ring having a cam face on which a tip-ends of the vanes slide with the rotation of the rotor, the cam ring being provided so as to be capable of being made eccentric with respect to the rotor; a second pump body configured to accommodate the cam ring; and a spring interposed between the cam ring and the second pump body in a compressed state, the spring being configured to bias the cam ring in the direction in which the amount of eccentricity with respect to the rotor is increased. The cam ring and the second pump body have seating surfaces on which the spring is seated and grooves formed in the seating surfaces.
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公开(公告)号:US10458509B2
公开(公告)日:2019-10-29
申请号:US15759432
申请日:2016-09-08
Applicant: KYB Corporation
Inventor: Yoshifumi Kobayashi
Abstract: A damping valve includes a valve element member, a disc spring, and a solenoid. The valve element member opens and closes an upstream side and a downstream side of a pilot passage by a pressure control valve element seated on and liftable from a pressure control valve seat and an open/close valve element seated on and liftable from an open/close valve seat. The disc spring is interposed between a stepped part and the valve element member. The disc spring biases the valve element member in a direction in which the pressure control valve element separates from the pressure control valve seat and in which the open/close valve element approaches the open/close valve seat. The solenoid is configured to drive the valve element member against a biasing force by the disc spring. In a state in which the disc spring has a natural length, a clearance is formed between the open/close valve element and the open/close valve seat.
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公开(公告)号:US20190301452A1
公开(公告)日:2019-10-03
申请号:US16344681
申请日:2017-11-08
Applicant: KYB Corporation
Inventor: Koichiro AKATSUKA , Yoshiyuki MAKI
Abstract: A vane pump includes a pump rotor having a through hole to which a driving shaft is coupled, a pump housing configured to accommodate the pump rotor and the cam ring, and a first side plate provided between the pump rotor and a bottom surface of the pump housing. The first side plate or the pump housing is formed with a projection, the projection is inserted into the through hole of the pump rotor.
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公开(公告)号:US10411569B2
公开(公告)日:2019-09-10
申请号:US15516688
申请日:2015-10-16
Applicant: KYB Corporation , TOP Co., Ltd.
Inventor: Takayuki Kawaguchi , Tomomi Hayase , Ryuichi Kaneko , Yoshiteru Kurokawa , Hiroyuki Miyoshi , Akihiro Kawabata
Abstract: A rotor manufacturing method for manufacturing a rotor including a rotor core, the rotor core having a permanent magnet mounted thereon throughout a circumferential direction, includes covering an outer circumference of the rotor core with a tubular rotor cover; and forming an angular portion conforming to an outer shape of the permanent magnet by pressing an open end of the rotor cover radially inward with use of a pressing member, the open end of the rotor cover axially projecting from an end of the rotor core before being pressed.
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公开(公告)号:US20190145540A1
公开(公告)日:2019-05-16
申请号:US15759518
申请日:2016-08-26
Applicant: KYB Corporation
Inventor: Toru TAKEUCHI
IPC: F16K31/06
Abstract: A solenoid valve includes a main valve configured to change a communication opening degree between a first port and a second port, a control pressure chamber configured to bias the main valve in a valve closing direction, an auxiliary valve configured to open and close a first communication passage and a second communication passage formed in the main valve, a solenoid portion configured to displace the auxiliary valve, a back pressure chamber and a sub-return spring configured to bias the auxiliary valve in a valve closing direction, and a pressure compensation unit configured to change a biasing force of the sub-return spring acting on the auxiliary valve according to a pressure in the back pressure chamber.
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公开(公告)号:US20190139177A1
公开(公告)日:2019-05-09
申请号:US16096023
申请日:2017-04-21
Applicant: KYB CORPORATION
Inventor: Atsutoshi HASEBE
Abstract: This device for detecting a road surface state includes: a stereo camera including a plurality of cameras that each image a road surface in front of a vehicle and are arranged such that a parallax is vertically generated; and an arithmetic processing circuit that vertically searches for corresponding points of a plurality of images taken by the plurality of cameras of the stereo camera, to thereby calculate a parallax, and calculates a height of the road surface as a state of the road surface on a basis of the calculated parallax.
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公开(公告)号:US20190111950A1
公开(公告)日:2019-04-18
申请号:US16094005
申请日:2017-04-19
Applicant: KYB CORPORATION
Inventor: Takayuki OGAWA , Jun AOKI
IPC: B61F5/24
Abstract: A railway vehicle vibration damping device includes: an actuator including a cylinder body configured to expand and contract when supplied with hydraulic fluid, a pump configured to supply the hydraulic fluid to the cylinder body, and a motor configured to drive the pump, and installed on a railway vehicle; and a control unit configured to control the motor. The control unit stops the motor when a current value to be provided to the motor becomes equal to or larger than a current threshold for outputting a restriction torque set to a value exceeding a rated torque of the motor.
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公开(公告)号:US20190086483A1
公开(公告)日:2019-03-21
申请号:US16088444
申请日:2017-02-10
Applicant: KYB Corporation
Inventor: Tsukasa HEISHI
Abstract: A magnetic detection unit includes: a first magnet configured to generate a first magnetic field; a second magnet arranged in parallel with the first magnet, the second magnet being configured to generate a second magnetic field in a direction opposite to a direction of the first magnetic field; and a hall element having a magnetic-flux detection surface, the hall element being configured to output a signal corresponding to a magnetic flux density passing through the magnetic-flux detection surface. The hall element is arranged at a position where a direction of a magnetic flux in a synthetic magnetic field of the first magnetic field and the second magnetic field is parallel to the magnetic-flux detection surface.
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公开(公告)号:US20190085872A1
公开(公告)日:2019-03-21
申请号:US15742984
申请日:2016-10-25
Applicant: KYB CORPORATION
Inventor: Takayuki OGAWA , Takuya KOUGE
Abstract: A hydraulic device of the present invention includes: a cylinder body (S) including a cylinder (1) and a rod (2) that moves retractably inside the cylinder (1); and a pump unit (30) that is formed with an oil passage (31) and discharges, at an intermediate position in the oil passage (31), liquid into the cylinder (1) through driving of a motor (M). The cylinder body (S) is connected to the pump unit (30) via an extension (40) having an oil passage (41) that provides communication between the oil passage (31) of the pump unit (30) and an interior of the cylinder (1).
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公开(公告)号:US20190055931A1
公开(公告)日:2019-02-21
申请号:US15760388
申请日:2016-09-14
Applicant: KYB Corporation
Inventor: Ryunosuke ISHIKAWA
Abstract: A piston pump/motor includes a cylinder block rotated with a shaft; a piston slidably inserted into a cylinder that is formed on the cylinder block; a shoe rotatably connected to a tip end portion of the piston, the shoe being in sliding contact with the tip end portion; and a swash plate with which the shoe is in sliding contact. The shoe has a piston slide portion in sliding contact with the piston and a swash-plate slide portion in sliding contact with the swash plate; a shoe body portion on which the piston slide portion and the swash-plate slide portion are mounted; and a first lock portion and a second lock portion provided across the shoe body portion, and the piston slide portion and the swash-plate slide portion, respectively, the first lock portion and the second lock portion regulating relative rotation between the shoe body portion, and the piston slide portion and the swash-plate slide portion.
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