公开(公告)号：EP1550799B1

公开(公告)日：2007-04-04

申请号：EP03748689.1

申请日：2003-10-02

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA

发明人： YUASA, Tsuneyoshi ,  YAMANE, Yoshiro ,  KOBAYASHI, Masanori

IPC分类号： F02B25/22 ,  F01M3/00

CPC分类号： F02B25/22 ,  F01M3/02 ,  F02B2075/025 ,  F02M35/1019 ,  F02M35/10275 ,  F02M35/108

摘要： An air scavenging-type two-cycle engine where a bearing of a crankshaft can be lubricated with gas blow-by being controlled by a simple structure. The engine has a first scavenging passage (13) communicating between a combustion chamber (1a) and a crank chamber (2a) through a bearing (81) of a crankshaft (8), a second scavenging passage (14) directly communicating between the combustion chamber (1a) and the crank chamber (2a), a suction chamber (72) formed in a side face of a piston (7), a mixture gas passage (10) through which a mixture gas (M) is sucked into the suction chamber (72), and an air passage (11) through which air (A) is introduced into the crank chamber (2a). In a suction stroke, the mixture gas (M) from the mixture gas passage (10) is introduced into the first scavenging passage (13) through the suction chamber (72), and the air (A) from the air passage (11) is introduced into the crank chamber (2a). In a scavenging stroke, before the mixture gas (M) in the first scavenging passage (13) is introduced into the combustion chamber (1a), introduction of the air (A) in the crank chamber (2a) into the combustion chamber (1a) through the second scavenging passage (14) starts.

公开(公告)号：EP1550799A1

公开(公告)日：2005-07-06

申请号：EP03748689.1

申请日：2003-10-02

申请人： Kawasaki Jukogyo Kabushiki Kaisha

发明人： YUASA, Tsuneyoshi ,  YAMANE, Yoshiro ,  KOBAYASHI, Masanori

IPC分类号： F02B25/22 ,  F01M3/00

CPC分类号： F02B25/22 ,  F01M3/02 ,  F02B2075/025 ,  F02M35/1019 ,  F02M35/10275 ,  F02M35/108

摘要： An engine including first scavenging passages (13) for fluidly connecting between a combustion chamber (1a) and a crank chamber (2a) through bearings (81) for the crankshaft (8), second scavenging passages (14) fluidly connecting directly between the combustion chamber (1a) and the crank chamber (2a), a suction chamber (72) formed in a side face of a piston (7). An air-fuel mixture (M) is sucked into the suction chamber (72) and an air (A) is introduced into the crank chamber (2a). During the intake stroke, the air-fuel mixture (M) from the air-fuel mixture passage (10) is introduced into the first scavenging passages (13) through the suction chambers (72), and the air (A) is introduced into the crank chamber (2a). During the scavenging stroke, before the air-fuel mixture (M) in the first scavenging passages (13) is introduced into the combustion chamber (1a), introduction of the air (A) in the crank chamber (2a) into the combustion chamber (1a) through the second scavenging passages (14) starts.

摘要翻译： 一种发动机，包括用于通过用于曲轴（8）的轴承（81）在燃烧室（1a）和曲柄室（2a）之间流体连接的第一扫气通道（13），第二扫气通道（14）直接在燃烧 室（1a）和曲柄室（2a），形成在活塞（7）的侧面的吸入室（72）。 空气 - 燃料混合物（M）被吸入吸入室（72），空气（A）被引入曲柄室（2a）。 在进气行程中，来自空气 - 燃料混合物通道（10）的空气 - 燃料混合物（M）通过抽吸室（72）被引入到第一扫气通道（13）中，空气（A）被引入 曲柄室（2a）。 在清扫行程中，在第一扫气通路（13）内的空气混合气体（M）被引入燃烧室（1a）之前，空气（A）在曲柄室（2a）内引入到燃烧室 （1a）通过第二扫气通道（14）开始。