基本信息:
- 专利标题： PRESSURE OIL SUPPLY SYSTEM HAVING A PRESSURE COMPENSATING VALVE
- 专利标题（中）：阀门DRUCKKOMPENSIERENDEM压力油供给系统
- 申请号：EP93923052 申请日：1993-10-22
- 公开(公告)号：EP0747601A4 公开(公告)日：1995-08-08
- 发明人： ISHIHAMA KAZUYOSHI , IKEI KAZUNORI , UEHARA KAZUO
- 申请人： KOMATSU MFG CO LTD
- 专利权人： KOMATSU MFG CO LTD
- 当前专利权人： KOMATSU MFG CO LTD
- 优先权： JP28577792 1992-10-23; JP28580392 1992-10-23; JP7409192 1992-10-23; JP7411092 1992-10-23; JP7526092 1992-10-29; JP7526192 1992-10-29; JP7605892 1992-11-04; JP7761592 1992-11-11
- 主分类号： E02F9/22
- IPC分类号： E02F9/22 ; F15B11/16 ; F15B13/00 ; F15B13/04 ; F15B13/08 ; F15B11/00 ; F15B11/05
摘要：
A direction control valve device comprising a direction control valve made by providing in a valve block a main spool for establishing and/or shutting off communication between an input port, first and second actuator ports and first and second tank ports, and a pressure compensating valve made by providing in said valve block a check valve section and a pressure reducing valve section so that pressure oil in a pump port is pressure compensated with loading pressure to thereby be supplied to said input port, wherein a plurality of said valve blocks are connected to each other and respective first and second tank ports are made to communicate with respective pump ports, wherein a main input port is connected to one of said pump ports, and wherein one of said first and second tank ports is connected to a main tank port.
IPC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 |