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1. 发明公开

EP1048831A3 Two-stroke cycle engine 有权
标题翻译： Zweitaktbrennkraftmaschine
公开(公告)号：EP1048831A3
公开(公告)日：2001-12-19
申请号：EP00108969.7
申请日：2000-04-27
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： Uenoyama, Kazuyuki, Mitsubishi Heavy Ind. Ltd. , Kobayashi, Yoshio, Mitsubishi Heavy Ind. Ltd. , Kudou, Kazunori, Mitsubishi Heavy Ind. Ltd.
IPC分类号： F02B25/14 , F02B75/16
CPC分类号： F02B33/04 , F02B25/14 , F02B25/22 , F02B2075/025 , F02D2009/0279 , F02F7/0036 , F02M17/04 , F02M23/03 , F02M35/10078 , F02M35/1017 , F02M35/1019 , F02M35/10196 , F02M35/10275 , F02M35/108 , F05C2201/021 , Y02T10/146
摘要： This invention concerns a two-stroke cycle engine, more specially it concerns a two-stroke cycle engine using a preceding air-layer for scavenging. It has a scavenger passage connected to a branching scavenger passage opened to said scavenging port. The engine has a connecting passage to link the air passage and the fuel passages so that negative pressure in the air passage forces the fuel-air mixture in the fuel passage into said air passage. Further, the engine according to this invention has a removable guide with a surface forming a curved smooth channel which is attachable to the scavenger passage in the crankcase from the mounting surface, and forms a portion of said scavenger passage with the curved channel. The blow-up angle of the scavenger passage varies along the circumferential direction of the cylinder. The crankcase is configured in such a way that the front and rear portions, which are separated by a block, and a scavenger passage is provided inside both said front and rear portions of said crankcase, and the cylinder. The air cleaner has two air passages running from it in parallel, the first one is connected to said air passage, and the second one is connected to the air inlet of the carburetor to provide air for the fuel passage, and a choke valve on the air cleaner is provided to open and close both of the first and second air passages.
摘要翻译：本发明涉及一种二冲程循环发动机，更具体地涉及使用前述空气层进行清扫的二冲程循环发动机。它有一个清道通道连接到通向所述扫气港的分支清道夫通道。发动机具有连接通道以连接空气通道和燃料通道，使得空气通道中的负压迫使燃料通道中的燃料 - 空气混合物进入所述空气通道。此外，根据本发明的发动机具有可拆卸的引导件，其具有形成弯曲的平滑通道的表面，该平面通道可从安装表面附接到曲轴箱中的清除通道，并且形成具有弯曲通道的所述清除通道的一部分。清扫通道的溢流角沿气缸的圆周方向变化。曲轴箱被构造成使得在所述曲轴箱的前后部分和缸体之间设置有由块分隔的前部和后部以及清除通道。空气滤清器具有从其平行的两个空气通道，第一个连接到所述空气通道，第二个连接到化油器的空气入口以为燃料通道提供空气，提供空气滤清器以打开和关闭第一和第二空气通道。

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