发明名称 |
HYBRID CONSTRUCTION MACHINE |
摘要 |
A hybrid construction machine has an electric motor for driving the swing structure, and the electric motor is prevented from becoming incapable of generating torque due to a low energy state or an overcharged state of an electricity storage device. A swing-mode selector switch 77 which is manually operated switches between a hydraulic/electric combined swing mode for driving the swing structure by driving both the electric motor and a hydraulic motor and a hydraulic solo swing mode for driving the swing structure by driving only the hydraulic motor. For a normal operation, the swing mode is initially set in the hydraulic/electric combined swing mode. For a specific operation, the operator switches the swing-mode selector switch from a hydraulic/electric combined swing position to a hydraulic solo swing position.
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申请公布号 |
US2013174556(A1) |
申请公布日期 |
2013.07.11 |
申请号 |
US201113642621 |
申请日期 |
2011.07.20 |
申请人 |
NISHIKAWA SHINJI;HIROKI TAKENORI;ISHIKAWA KOUJI;EDAMURA MANABU;SATAKE HIDETOSHI;OOKI TAKATOSHI;HITACHI CONSTRUCTION MACHINERY CO., LTD. |
发明人 |
NISHIKAWA SHINJI;HIROKI TAKENORI;ISHIKAWA KOUJI;EDAMURA MANABU;SATAKE HIDETOSHI;OOKI TAKATOSHI |
分类号 |
E02F9/20;E02F9/22 |
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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