发明名称 |
Method and apparatus for starting diesel type hammers |
摘要 |
A self starting diesel hammer (20) having a tubular casing (30) inside which a heavy ram (32) is driven up by means of an explosion and then falls back onto an anvil (46) while compressing air under the ram so that fuel injected under the ram (32) causes the air to explode and drive the ram (32) up again, and a source of compressed gas (106) and a valve (110) arranged to direct the gas under the ram (32) to throw it upwardly in the casing (30) to start operation of the hammer.
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申请公布号 |
US4580641(A) |
申请公布日期 |
1986.04.08 |
申请号 |
US19830489572 |
申请日期 |
1983.04.28 |
申请人 |
RAYMOND INTERNATIONAL BUILDERS, INC. |
发明人 |
HOLLAND, HENRY A. N.;BANDURA, JAMES |
分类号 |
E02D7/12;F02B3/06;F02B71/02;(IPC1-7):B25D9/00 |
主分类号 |
E02D7/12 |
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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