发明名称 |
A device for breaking a hard material. |
摘要 |
<p>A liquid jet cannon having a reciprocably movable piston device (6). The piston device is held in cocked position against the action of a gas pressure accumulator (19) by liquid pressure in a first chamber (15) until initiation of a power stroke. The power stroke is initiated by depressurization of a control chamber (16), whereby a valve (11) is moved to its open position so that a flow communication (39) is created between the first chamber (15) and a second chamber (17). The first chamber is thus rapidly depressurized so that the pressure in the gas pressure accumulator (19) drives the piston device (6) into a liquid chamber (14) to produce a liquid jet pulse for breakage of the hard material.</p> |
申请公布号 |
EP0027784(A1) |
申请公布日期 |
1981.04.29 |
申请号 |
EP19800850155 |
申请日期 |
1980.10.15 |
申请人 |
INSTITUT CERAC S.A. |
发明人 |
EDNEY, BARRY E.;ZURCHER, ALAIN |
分类号 |
E21C37/12;E21B7/18;B02C1/00;B05B12/06;B26F3/00;F01B11/00;F01L25/06;F15B21/12;(IPC1-7):05B17/04;15B21/12;01L25/06;01B11/00;26F3/00 |
主分类号 |
E21C37/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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