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CN102308076A 多气缸内燃发动机的曲柄室连通结构 失效 - 权利终止 复审申请

  • Patent Title: 多气缸内燃发动机的曲柄室连通结构
  • Patent Title (English): Crank chamber communication structure of multi-cylinder internal combustion engine
  • Application No.: CN201080006600.9
    Application Date: 2010-02-02
  • Publication No.: CN102308076A
    Publication Date: 2012-01-04
  • Inventor: 藤井学
  • Applicant: 丰田自动车株式会社
  • Applicant Address: 日本爱知县
  • Assignee: 丰田自动车株式会社
  • Current Assignee: 丰田自动车株式会社
  • Current Assignee Address: 日本爱知县
  • Agency: 北京市中咨律师事务所
  • Agent 马江立; 常殿国
  • Priority: 023882/2009 2009.02.04 JP
  • International Application: PCT/IB2010/000197 2010.02.02
  • International Announcement: WO2010/089648 EN 2010.08.12
  • Date entered country: 2011-08-04
  • Main IPC: F02F7/00
  • IPC: F02F7/00
多气缸内燃发动机的曲柄室连通结构
Abstract:
一种用于多气缸内燃发动机的曲柄室连通结构具有由气缸体(13)和曲轴箱(14)形成的多个分隔壁(31，32)，所述多个分隔壁形成为用以支承曲轴(17)并限定出对应于多个气缸的多个曲柄室(23a至23c)，该结构包括：分别形成在多个分隔壁中的多个第一连通孔(31a，32a)，其用于由居间分隔壁隔开的各对邻接的曲柄室(23a，23b；23b，23c)之间的连通；以及由气缸体和曲轴箱中的至少一者形成的第二连通孔(35a)，其设置在一对非邻接的曲柄室之间用于该对非邻接的曲柄室之间的直接连通，所述多个分隔壁之中的至少两个分隔壁设置在所述一对非邻接的曲柄室之间。
Abstract(English):

A crank chamber communication structure for a multi-cylinder internal combustion engine having a plurality of partition walls (31, 32) that are formed by a cylinder block (13) and a crankcase (14), that are formed to support a crankshaft (17) and to define a plurality of crank chambers (23a to 23c) that correspond to the plurality of cylinders, the structure including: a plurality of respective first communicating holes (31a, 32a) formed in the plurality of partition walls for communication between respective pairs of adjoining crank chambers (23a, 23b; 23b, 23c) separated by an interposed partition wall; and a second communicating hole (35a) that is formed at least either of the cylinder block or the crankcase, and that is interposed between a pair of non-adjoining crank chambers between which at least two partition walls among the plurality of partition walls are interposed for direct communication between the pair of non-adjoining crank chambers.

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