公开(公告)号：US20180065610A1

公开(公告)日：2018-03-08

申请号：US15561514

申请日：2016-03-25

Applicant: KYB Corporation

Inventor： Kenji SUZUKI ,  Hiroaki KUBOI

IPC: B60T13/22

CPC classification number: B60T13/22 ,  B60T13/148 ,  F03C1/0623 ,  F03C1/0636 ,  F03C1/0644 ,  F03C1/0668 ,  F16D55/00 ,  F16D55/40 ,  F16D2121/06 ,  F16F1/046 ,  F16F1/123 ,  F16F3/04

Abstract: A brake device that puts a brake on a hydraulic motor includes a disc plate configured to rotate with a cylinder block, a brake piston supported by a first case, and brake springs compressed and placed between the brake piston and a second case. The second case has a dent shaped or projection shaped holding portion into which one ends of the brake springs are inserted, and the brake springs are held by the holding portion even in a state where the other ends are away from the brake piston.

公开(公告)号：US20230246519A1

公开(公告)日：2023-08-03

申请号：US18002727

申请日：2021-06-18

Applicant: KYB Corporation

Inventor： Kenji SUZUKI ,  Keita MATSUZAKA ,  Jun SUZUKI

IPC: H02K7/116 ,  F16H1/46 ,  F16D1/02

CPC classification number: H02K7/116 ,  F16H1/46 ,  F16D1/02

Abstract: In a transmission-equipped motor, a spline portion is formed at an end portion of a drive shaft of a transmission, and a spline hole with which the spline portion is engaged is formed on an end surface of a motor shaft of a hydraulic motor. A snap ring which contacts an end surface of the motor shaft having the spline hole is provided on an outer periphery of the drive shaft having the spline portion so that the snap ring positions the motor shaft and the drive shaft.

公开(公告)号：US20200340210A1

公开(公告)日：2020-10-29

申请号：US16757163

申请日：2019-07-03

Applicant: KYB Corporation

Inventor： Kosuke KATSURA ,  Kenji SUZUKI ,  Hiroaki KUBOI

IPC: E02F9/22

Abstract: In an anti-reverse valve, a first communication passage that allows the first supply and discharge passage to communicate with the first pressure chamber and a second communication passage that allows the second supply and discharge passage to communicate with the second pressure chamber are provided inside the spool, a first restrictor is provided in the first communication passage, a second restrictor is provided in the second communication passage, and a first annular groove that allows the first supply and discharge passage to communicate with the drain passage when the spool is placed at the first communication position and a second annular groove that allows the second supply and discharge passage to communicate with the drain passage when the spool is placed at the second communication position are provided in an outer periphery of the spool.

公开(公告)号：US20200309088A1

公开(公告)日：2020-10-01

申请号：US16755024

申请日：2019-06-03

Applicant: KYB Corporation

Inventor： Kosuke KATSURA ,  Kenji SUZUKI

IPC: F03C1/00 ,  F16D55/40 ,  F16D65/28

Abstract: A brake system configured to brake a hydraulic motor includes a valve device configured to open and close supply passages through which working oil pressurized in a hydraulic pump is supplied to a brake device, the valve device has a first connection port to which the working oil is led from the hydraulic pump, a second connection port from which the working oil is led to the brake device, and a valve element provided with a pressure receiving surface facing the first connection port, and the valve element permits communication between the first connection port and the second connection port when pressure of the working oil led to the first connection port reaches predetermined pressure, and shuts off the communication between the first connection port and the second connection port when the pressure of the working oil led to the first connection port becomes less than the predetermined pressure.

公开(公告)号：US20190264796A1

公开(公告)日：2019-08-29

申请号：US16342851

申请日：2017-10-19

Applicant: KYB Corporation

Inventor： Jun SUZUKI ,  Kenji SUZUKI

IPC: F16H57/029 ,  F16H57/031 ,  F16J15/06

Abstract: The transmission includes: an open-end cover fitted to an inner circumference of an open end portion of a rotary housing, the cover being configured to close the open end portion; an O-ring provided between the rotary housing and the open-end cover in the compressed state in the axial direction of the rotary housing, the O-ring being configured to seal between the inner circumferential portion of the rotary housing and the outer circumferential portion of the open-end cover; and a snap ring configured to restrict the movement of the open-end cover in the axial direction. The open-end cover is pushed against the snap ring by the repulsive force exerted by the compressed O-ring.

公开(公告)号：US20210222711A1

公开(公告)日：2021-07-22

申请号：US16760800

申请日：2019-09-12

Applicant: KYB Corporation

Inventor： Keita MATSUZAKA ,  Kenji SUZUKI

IPC: F15B21/0423 ,  F15B11/08

Abstract: A fluid pressure drive device includes a flushing circuit configured to discharge a working fluid from one of the pair of main passages to a tank. The flushing circuit has a low pressure selection valve provided between the pair of main passages and configured to be switched by a pressure difference between the pair of main passages, the low pressure selection valve being configured to select the main passage on the low pressure side; and a flushing passage configured to lead the working fluid passing through the low pressure selection valve to the tank. The flushing passage has a first orifice and a bent portion formed on the downstream side of the first orifice.