发明公开
EP1594658A1 CONTROL VALVE AND A METHOD OF A PERCUSSION DEVICE COMPRISING TWO PARALLEL INLET CHANNELS
有权
控制阀与方法有两个平行的入口通道的震动装置
- 专利标题： CONTROL VALVE AND A METHOD OF A PERCUSSION DEVICE COMPRISING TWO PARALLEL INLET CHANNELS
- 专利标题（中）： 控制阀与方法有两个平行的入口通道的震动装置
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申请号： EP04713565.2申请日： 2004-02-23
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公开(公告)号： EP1594658A1公开(公告)日： 2005-11-16
- 发明人: KOSKIMÄKI, Antti
- 申请人： Sandvik Tamrock Oy
- 申请人地址： Pihtisulunkatu 9 33330 Tampere FI
- 专利权人： Sandvik Tamrock Oy
- 当前专利权人： Sandvik Tamrock Oy
- 当前专利权人地址： Pihtisulunkatu 9 33330 Tampere FI
- 代理机构： Kuosmanen, Timo
- 优先权： FI20030263 20030221
- 国际公布： WO2004073931 20040902
- 主分类号： B25D9/16
- IPC分类号： B25D9/16
摘要：
The invention relates to a control valve, a percussion device and a method of controlling a working cycle of a percussion device. The percussion device (1) for breaking rock includes an impact element (8) whose working cycle is controlled by a control valve (2). The control valve (2) includes a control element (5) arranged to control channels (7b) leading to working pressure surfaces (9) of the impact element (8). The control valve (2) includes two or more parallel working pressure channels (21a, 21b) which the control element (5) is arranged to open simultaneously when the control element (5) is moved in one control direction.
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