发明名称 |
CONSTRUCTION MACHINE HAVING ROTARY ELEMENT |
摘要 |
Disclosed is a hybrid-type construction machine equipped with a swing hydraulic motor 27 and a swing electric motor 25 in combination to save energy, the construction machine ensuring high operability of a swing body 20 and providing high energy efficiency. In accordance with the amount of manipulation of a swing control lever 72, the construction machine changes a rate of a torque of the swing electric motor 25 with respect to that of the swing hydraulic motor 27. The construction machine also controls a relief pressure and the torque of the swing electric motor 25 in accordance with the amount of manipulation of a swing control lever 72, a pressure of the swing hydraulic motor 27, and a rotating speed of the swing electric motor 25. |
申请公布号 |
EP2628858(A4) |
申请公布日期 |
2016.01.20 |
申请号 |
EP20110832463 |
申请日期 |
2011.10.05 |
申请人 |
HITACHI CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
IMURA SHINYA;ISHIDA SEIJI;ISHIKAWA KOUJI;KAJITA YUSUKE;SATAKE HIDETOSHI;OOKI TAKATOSHI;EDAMURA MANABU |
分类号 |
E02F9/20;E02F9/12;E02F9/22;H02P27/00 |
主分类号 |
E02F9/20 |
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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