发明公开
- 专利标题： Variable-valve-actuation apparatus for internal combustion engine
- 专利标题（中）： 在内燃发动机可变气门昂贵近似装置
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申请号： EP02003756.0申请日： 2002-02-19
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公开(公告)号： EP1236870A3公开(公告)日： 2003-06-25
- 发明人: Nakamura, Makoto , Takemura, Shinichi
- 申请人： UNISIA JECS CORPORATION , Nissan Motor Co., Ltd.
- 申请人地址： 1370, Onna Atsugi-shi, Kanagawa 243-8510 JP
- 专利权人： UNISIA JECS CORPORATION,Nissan Motor Co., Ltd.
- 当前专利权人： UNISIA JECS CORPORATION,Nissan Motor Co., Ltd.
- 当前专利权人地址： 1370, Onna Atsugi-shi, Kanagawa 243-8510 JP
- 代理机构： Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
- 优先权： JP2001054172 20010228
- 主分类号： F01L13/00
- IPC分类号： F01L13/00 ; F02D13/00 ; F02D13/02
摘要：
A VVA apparatus for an internal combustion engine includes a intake valve, and an alteration mechanism which variably controlling lift characteristics of the intake valve in accordance with the engine operating conditions, wherein the valve lift characteristics include a ramp period which is shorter in the range of medium lift amount than in the range of small lift amount and the range of large lift amount.
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