发明名称 |
VARIABLE VALVE SYSTEM, CONTROL APPARATUS AND VARIABLE VALVE APPARATUS FOR INTERNAL COMBUSTION ENGINE |
摘要 |
A variable valve system for an internal combustion engine includes a plurality of engine valves provided per one cylinder; a swing arm configured to perform an opening-and-closing operation of at least one of the plurality of engine valves by swinging about a fulcrum given by a support member; a variable lift mechanism configured to cause the swing arm to swing, and to vary a lift amount of the at least one of the plurality of engine to valves; a valve stop mechanism provided for the at least one of the plurality of engine valves and configured to stop the opening-and-closing operation of the at least one of the plurality of engine valves by producing a lost motion of the support member; and an engine-speed limiting section configured to variably limit a maximum rotational speed of the internal combustion engine in accordance with a displacement amount of the lost motion. |
申请公布号 |
US2014251243(A1) |
申请公布日期 |
2014.09.11 |
申请号 |
US201414199236 |
申请日期 |
2014.03.06 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
NAKAMURA Makoto |
分类号 |
F01L13/00 |
主分类号 |
F01L13/00 |
代理机构 |
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代理人 |
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主权项 |
1. A variable valve system for an internal combustion engine, comprising:
a plurality of engine valves provided per one cylinder; a swing arm configured to perform an opening-and-closing operation of at least one of the plurality of engine valves by swinging about a fulcrum given by a support member; a variable lift mechanism configured
to cause the swing arm to swing, andto vary a lift amount of the at least one of the plurality of engine valves; a valve stop mechanism provided for the at least one of the plurality of engine valves, and configured to stop the opening-and-closing operation of the at least one of the plurality of engine valves by producing a lost motion of the support member; and an engine-speed limiting section configured to variably limit a maximum rotational speed of the internal combustion engine in accordance with a displacement amount of the lost motion produced by the valve stop mechanism. |
地址 |
Hitachinaka-shi JP |