发明名称 |
Hydraulically-operated devices |
摘要 |
A hydraulically-operated reciprocatory device such as a road-breaking hammer includes piston means having an enlarged area portion which enters an overtravel-damping dashpot cavity. The dashpot cavity is in a chamber connected in series with valve means controlling the flow of hydraulic fluid such that said fluid flow through the chamber removes heat generated during a damping action.
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申请公布号 |
US4020747(A) |
申请公布日期 |
1977.05.03 |
申请号 |
US19740527769 |
申请日期 |
1974.11.27 |
申请人 |
A. F. HYDRAULICS LIMITED |
发明人 |
REYNOLDS, LIONEL ARTHUR |
分类号 |
F15B11/15;B21J15/00;B21J15/16;B21J15/20;B21J15/36;B25D9/12;(IPC1-7):F01L25/06;F01B7/18;F01B11/02 |
主分类号 |
F15B11/15 |
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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