公开(公告)号：EP0172688B1

公开(公告)日：1990-02-28

申请号：EP85305480.7

申请日：1985-07-31

申请人： HONDA GIKEN KOGYO KABUSHIKI KAISHA

发明人： Tottori, Takumi ,  Oki, Kenji ,  Ooyama, Kazuo ,  Mizushima, Toshio

IPC分类号： F02B27/06

CPC分类号： F02B27/06 ,  F02B2075/025 ,  Y02T10/146

公开(公告)号：EP0172688A1

公开(公告)日：1986-02-26

申请号：EP85305480.7

申请日：1985-07-31

申请人： HONDA GIKEN KOGYO KABUSHIKI KAISHA

发明人： Tottori, Takumi ,  Oki, Kenji ,  Ooyama, Kazuo ,  Mizushima, Toshio

IPC分类号： F02B27/06

CPC分类号： F02B27/06 ,  F02B2075/025 ,  Y02T10/146

摘要： @ A two-cycle engine includes a cylinder block having at least one pair of first and second cylinders (16, 18), the first and second cylinders having a pair of first and second exhaust ports, respectively (38, 40). A pair of first and second pistons are received respectively in the first and second cylinders for reciprocal movement therealong, each of the exhaust ports being selectively closed and opened by a respective one of the pistons during the movement thereof along a respective one of the cylinders. The first and second pistons are operatively connected to a crankshaft in such a manner that the first and second pistons are reciprocable 180° out of phase along the respective cylinders. A final portion of the duration of opening of one of the exhaust ports overlaps an initial portion of the duration of opening of the other. An exhaust passage has a communicating portion (46) communicating the first and second exhaust ports with each other adjacent thereto.