发明授权
- 专利标题: OHC vertical crankshaft engine
- 专利标题(中): OHC立式曲轴发动机
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申请号: US472394申请日: 1990-01-30
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公开(公告)号: US5031591A公开(公告)日: 1991-07-16
- 发明人: Akihisa Shinoda , Yoshikazu Yamada , Motohiro Fujita , Naoyuki Kamiya , Hirohisa Ishikawa , Ryoji Saiki , Yuichi Tokito , Makoto Yonezawa , Yoji Fujinaga
- 申请人: Akihisa Shinoda , Yoshikazu Yamada , Motohiro Fujita , Naoyuki Kamiya , Hirohisa Ishikawa , Ryoji Saiki , Yuichi Tokito , Makoto Yonezawa , Yoji Fujinaga
- 申请人地址: JPX Tokyo
- 专利权人: Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人: Honda Giken Kogyo Kabushiki Kaisha
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX1-20095 19890130; JPX1-20096 19890130; JPX1-20097 19890130; JPX1-30684 19890209; JPX1-21062[U]JPX 19890223
- 主分类号: F01L1/02
- IPC分类号: F01L1/02 ; F01P1/02 ; F02B63/02 ; F02B75/00 ; F02B75/02 ; F02B75/16
摘要:
An OHC vertical crankshaft engine, comprising: a vertically disposed crankshaft having a first timing pulley at its lower end; a cooling fan attached to an upper end of the crankshaft; a camshaft extending in parallel with the crankshaft at a cylinder head end of the engine and having a second timing pulley at its lower end; and a timing belt passed around the timing pulleys. Thus, the need for lubrication for the transmission mechanism between the crankshaft and the camshaft is substantially eliminated, and the noise generation is reduced. Additionally, since the upper part of the cylinder head is directly exposed to the cooling air produced by a fan provided at an upper end of the crankshaft, a high engine cooling efficiency can be achieved. This effect is even more enhanced if the exhaust port of the engine is disposed above the intake port and extends horizontally and linearly away from the engine.
公开/授权文献
- US5673408A Processor structure and method for renamable trap-stack 公开/授权日:1997-09-30