公开(公告)号：EP4317707A3

公开(公告)日：2024-05-01

申请号：EP23217704.8

申请日：2022-03-02

申请人： J.C. Bamford Excavators Limited

发明人： HEWITT, James ,  BRENNER, Paul ,  SHANKAR, Ravi

IPC分类号： E02F9/22 ,  F15B11/042 ,  F15B11/044 ,  F15B21/08 ,  B66F11/04 ,  E02F3/96 ,  E02F9/20 ,  E02F3/32 ,  F15B11/16

CPC分类号： E02F9/2235 ,  E02F3/964 ,  E02F9/207 ,  E02F9/2242 ,  E02F9/2267 ,  E02F9/2292 ,  E02F9/2296 ,  E02F3/325 ,  F15B2211/2053820130101 ,  F15B2211/3055520130101 ,  F15B2211/314420130101 ,  F15B2211/665420130101 ,  F15B2211/35320130101 ,  F15B2211/305420130101 ,  F15B2211/665120130101 ,  F15B2211/2051520130101 ,  F15B11/161 ,  F15B2211/66520130101 ,  F15B2211/630920130101 ,  F15B2211/631320130101 ,  F15B2211/2057620130101

摘要： A hydraulic system for a working vehicle, the hydraulic system comprising: a hydraulically actuated device; a hydraulic pump assembly for supplying a variable output of hydraulic fluid to the hydraulically actuated device; and a proportional control valve, wherein the hydraulic system is arranged such that hydraulic fluid exiting the hydraulically actuated device flows through a restriction of the proportional control valve; and wherein the hydraulic system is configured to control a flow of hydraulic fluid supplied to the hydraulically actuated device by varying the output of hydraulic fluid from the hydraulic pump assembly, and to control a flow of hydraulic fluid exiting the hydraulically actuated device via adjusting a restriction area of the proportional control valve.

公开(公告)号：EP4397860A3

公开(公告)日：2024-09-25

申请号：EP24175974.5

申请日：2022-03-02

申请人： J.C. Bamford Excavators Limited

发明人： BRENNER, Paul ,  HEWITT, James ,  SHANKAR, Ravi

IPC分类号： F04B17/03 ,  F04B23/02 ,  F04B23/04 ,  F04B53/00

CPC分类号： F04B23/021 ,  F04B23/023 ,  F04B17/03 ,  F04B23/04 ,  F04B53/001

摘要： A hydraulic pump system comprising: a housing defining a tank for containing hydraulic fluid in use; one or more pump modules each comprising a hydraulic pump for supplying hydraulic fluid from the tank to a hydraulic system; and a mounting arrangement; wherein the or each pump module is mounted to the housing by the mounting arrangement.

公开(公告)号：EP4317707A2

公开(公告)日：2024-02-07

申请号：EP23217704.8

申请日：2022-03-02

申请人： J.C. Bamford Excavators Limited

发明人： HEWITT, James ,  BRENNER, Paul ,  SHANKAR, Ravi

IPC分类号： F15B11/16

摘要： A hydraulic system for a working vehicle, the hydraulic system comprising: a hydraulically actuated device; a hydraulic pump assembly for supplying a variable output of hydraulic fluid to the hydraulically actuated device; and a proportional control valve, wherein the hydraulic system is arranged such that hydraulic fluid exiting the hydraulically actuated device flows through a restriction of the proportional control valve; and wherein the hydraulic system is configured to control a flow of hydraulic fluid supplied to the hydraulically actuated device by varying the output of hydraulic fluid from the hydraulic pump assembly, and to control a flow of hydraulic fluid exiting the hydraulically actuated device via adjusting a restriction area of the proportional control valve.

公开(公告)号：EP4397860A2

公开(公告)日：2024-07-10

申请号：EP24175974.5

申请日：2022-03-02

申请人： J.C. Bamford Excavators Limited

发明人： BRENNER, Paul ,  HEWITT, James ,  SHANKAR, Ravi

IPC分类号： F04B23/04

CPC分类号： F04B23/021 ,  F04B23/023 ,  F04B17/03 ,  F04B23/04

摘要： A hydraulic pump system comprising: a housing defining a tank for containing hydraulic fluid in use; one or more pump modules each comprising a hydraulic pump for supplying hydraulic fluid from the tank to a hydraulic system; and a mounting arrangement; wherein the or each pump module is mounted to the housing by the mounting arrangement.