基本信息:
- 专利标题: 건설중장비용 유압회로
- 专利标题(英):Hydraulic circuit of construction equipment
- 专利标题(中):建筑设备液压回路
- 申请号:KR1020070031465 申请日:2007-03-30
- 公开(公告)号:KR1020080088763A 公开(公告)日:2008-10-06
- 发明人: 구본석
- 申请人: 볼보 컨스트럭션 이큅먼트 에이비
- 申请人地址: SE-*** ** ESKILSTUNA, SWEDEN
- 专利权人: 볼보 컨스트럭션 이큅먼트 에이비
- 当前专利权人: 볼보 컨스트럭션 이큅먼트 에이비
- 当前专利权人地址: SE-*** ** ESKILSTUNA, SWEDEN
- 代理人: 윤의섭
- 主分类号: E02F9/24
- IPC分类号: E02F9/24 ; E02F9/20
摘要:
A hydraulic circuit of construction equipment is provided to employ an orifice formed in a spool opening a passage by switching a second valve to supply a signal pressure. A valve(9) is switched in a right direction due to a signal pressure formed in a signal passage when at least one of first to second valves(1,2,5,6) after switching fourth valves(3,4). A portion of the operation oil flows to a work device connected to the first valves through a first passage(12). A pressure formed in an intermediate passage(11) connected to a third hydraulic pump(P3) is identical to a load pressure formed in the first and second valves connected to first and second hydraulic pumps. A rotating device is rapidly driven due to the load pressure formed in the intermediate passage when the third valves are switched.
摘要(中):
提供了一种施工设备的液压回路,以通过切换第二阀以提供信号压力而采用形成在阀芯开口的阀芯中的孔口。 在切换第四阀(3,4)之后,当第一至第二阀(1,2,5,6)中的至少一个阀由于信号通道中形成的信号压力而使阀(9)向右切换。 一部分操作油通过第一通道(12)流到连接到第一阀的作业装置。 在与第三液压泵(P3)连接的中间通路(11)中形成的压力与连接到第一和第二液压泵的第一和第二阀中形成的负载压力相同。 当切换第三阀时,由于在中间通道中形成的负载压力,旋转装置被快速驱动。
公开/授权文献:
- KR100906228B1 건설중장비용 유압회로 公开/授权日:2009-07-07
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 |
--------E02F9/24 | .安全设备 |