发明名称 |
Internal combustion type pile driver |
摘要 |
An internal combustion type pile driver which has a cylinder, a ram adapted to slide within this cylinder, an anvil fitted into the bottom end of the cylinder and an air intake/exhaust port fixedly provided on said cylinder, is improved so that the height of rise of the ram may be adjustable. The improvement exists in providing a choke opening communicating the interior of the cylinder with the atmosphere for the purpose of adjusting a combustion gas pressure in a cylinder wall between the air intake/exhaust port and a combustion chamber, and either a choke plug or a blind plug is adapted to be fitted in to this choke opening.
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申请公布号 |
US4109621(A) |
申请公布日期 |
1978.08.29 |
申请号 |
US19770768617 |
申请日期 |
1977.02.14 |
申请人 |
MITSUBISHI JUKOGYO KABUSHIKI KAISHA |
发明人 |
HASHIMOTO, HIROSHI;KIMURA, KYOZO |
分类号 |
E02D7/12;(IPC1-7):F02B75/02 |
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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