基本信息:
- 专利标题： 建設機械の油圧駆動装置
- 专利标题（英）：Hydraulic drive system for a construction machine
- 专利标题（中）：用于建筑机械的液压驱动系统
- 申请号：JP2014528042 申请日：2013-06-19
- 公开(公告)号：JPWO2014021015A1 公开(公告)日：2016-07-21
- 发明人： 釣賀 靖貴 , 靖貴 釣賀 , 高橋 究 , 究 高橋
- 申请人： 日立建機株式会社
- 申请人地址： 東京都台東区東上野2丁目16番1号
- 专利权人： 日立建機株式会社
- 当前专利权人： 日立建機株式会社
- 当前专利权人地址： 東京都台東区東上野2丁目16番1号
- 代理人： 特許業務法人開知国際特許事務所
- 优先权： JP2012169577 2012-07-31
- 主分类号： E02F9/22
- IPC分类号： E02F9/22 ; F15B11/00 ; F15B11/17
In the hydraulic drive system that performs load sensing control by using the pump device in which the discharge flow rate is controlled by a and a single pump controller two discharge ports are driven two actuators simultaneously and flow rate difference at that time without surplus flow rate occurs in large combined operation, to reduce the energy loss in the unloading valve and pressure compensation valve. Connect the boom cylinder 3a so that both discharge oil discharge port P1, P2 of the pump device 1a is supplied joins, joins the arm cylinder 3h both of the discharge oil of the discharge port P3, P4 of the pump device 1b is and connected so as to supply the travel motor 3d pumping device 1a, and connected so that oil discharged from the discharge port P2, P4 one side of the discharge port of 1b is supplied by merging, the travel motor 3e pump apparatus 1a, is connected as 1b other side of the discharge port P1, P3 oil discharged from the discharge port of is supplied joined.
公开/授权文献:
- JP5952405B2 建設機械の油圧駆動装置 公开/授权日：2016-07-13
信息查询:
EspacenetIPC结构图谱:
| E | 固定建筑物 |
| --E02 | 水利工程；基础；疏浚 |
| ----E02F | 挖掘；疏浚 |
| ------E02F9/00 | 不限于从3/00至7/00内所属的一种挖掘机或疏浚机的部件 |
| --------E02F9/20 | .驱动装置；控制装置 |
| ----------E02F9/22 | ..液压或气压驱动装置 |