公开(公告)号：US12055124B1

公开(公告)日：2024-08-06

申请号：US18616194

申请日：2024-03-26

申请人： HUAQIAO UNIVERSITY

发明人： Tong Guo ,  Xiaomin Huang ,  Tao Luo ,  Tianliang Lin ,  Cheng Miao ,  Jianping Liu ,  Fumin Que

IPC分类号： F03C1/40 ,  F03C1/04 ,  F03C1/053 ,  F04B1/04 ,  F04B1/0452 ,  F04B1/053 ,  F04B1/06 ,  F04B53/16 ,  F15B15/14

CPC分类号： F03C1/0447 ,  F03C1/04 ,  F03C1/053 ,  F04B1/04 ,  F04B1/0452 ,  F04B1/053 ,  F04B1/06 ,  F04B53/16 ,  F15B15/1447

摘要： A four-quadrant radial piston hydraulic device includes a housing, plunger assemblies, an eccentric spindle rotatably disposed on the housing, pilot-operated check valves one-to-one corresponding to the plunger assemblies, two-way cartridge valves one-to-one corresponding to the plunger assemblies, a distribution shaft and a confluence plate. A reversing slide valve is disposed on the confluence plate. A working method of a four-quadrant radial piston hydraulic device is also provided. When the radial piston hydraulic device is used as a hydraulic motor and a hydraulic pump, it is capable of realizing two-way rotation, which solves a limitation of valve flow distribution in motor application.

公开(公告)号：US12129874B2

公开(公告)日：2024-10-29

申请号：US18128226

申请日：2023-03-30

申请人： HUAQIAO UNIVERSITY

发明人： Tong Guo ,  Tao Luo ,  Tianliang Lin ,  Qihuai Chen ,  Haoling Ren ,  Cheng Miao ,  Shengjie Fu

IPC分类号： F15B13/02 ,  F15B15/14 ,  F15B15/18

CPC分类号： F15B13/027 ,  F15B15/1409 ,  F15B15/18

摘要： The present disclosure relates to a radial piston hydraulic device distributing flow by pilot operated check valves and an operating method thereof. The radial piston hydraulic device includes a housing, a plurality of piston assemblies, a main shaft, first pilot operated check valves, second pilot operated check valves, and a valve plate. The first pilot operated check valves have a same number as the plurality of piston assemblies and are one-to-one corresponding to the plurality of piston assemblies. The second pilot operated check valves have a same number as the plurality of piston assemblies and are one-to-one corresponding to the plurality of piston assemblies. The radial piston hydraulic device can be used not only as the hydraulic motor, but also as a hydraulic pump, and can be used in a hydraulic system that need to realize power recovery functions.

公开(公告)号：US11781537B2

公开(公告)日：2023-10-10

申请号：US17880611

申请日：2022-08-03

申请人： HUAQIAO UNIVERSITY

发明人： Tong Guo ,  Tao Luo ,  Tianliang Lin ,  Qihuai Chen ,  Haoling Ren ,  Cheng Miao ,  Shengjie Fu

IPC分类号： F04B1/0465 ,  F04B1/0408 ,  F04B53/16

CPC分类号： F04B1/0465 ,  F04B1/0408 ,  F04B53/16

摘要： A radial piston hydraulic device distributed by pilot operated check valves includes a housing, a plurality of piston assemblies, a main shaft, the rotating shaft, first pilot operated check valves having a same number with the plurality of piston assemblies and one-to-one corresponding to the plurality of piston assemblies, and second pilot operated check valves having a same number with the plurality of piston assemblies and one-to-one corresponding to the plurality of piston assemblies. The housing includes a plurality of piston chambers, a rotating shaft chamber, a high-pressure oil passage, and a low-pressure oil passage. Each of the plurality of piston assemblies is slidable up and down in a corresponding piston chamber of the plurality of piston chambers. The main shaft is rotatably connected to the housing and is connected to the plurality of piston assemblies in a transmission way.