发明名称 |
Method for producing impulses in a percussive tool |
摘要 |
<p>An impulse generator (1) for a percussive tool includes a chamber (3) for receiving a liquid volume and an impulse piston (4) which is arranged for transferring pressure pulses in the liquid volume into stress wave pulses in the tool. The chamber (3) is adapted with respect to its shape such that it forms a resonance chamber for liquid in the liquid volume for forming at least one pressure antinode (11,15,17) inside the chamber. The invention also concerns a method and a hydraulic impulse tool.</p> |
申请公布号 |
EP1883503(A1) |
申请公布日期 |
2008.02.06 |
申请号 |
EP20060717033 |
申请日期 |
2006.03.20 |
申请人 |
ATLAS COPCO ROCK DRILLS AB |
发明人 |
WEDDFELT, KENNETH;WISAKANTO, RISTO;TUOMAS, GOERAN |
分类号 |
B25D9/12;E21B1/36 |
主分类号 |
B25D9/12 |
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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