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    • 8. 发明申请
    • TWO-STROKE ENGINE COMPRISING A MUFFLER
    • 其中废气二冲程发动机
    • WO2012120037A3
    • 2013-03-21
    • PCT/EP2012053901
    • 2012-03-07
    • MAKITA CORPKELLERMANN CHRISTIAN
    • KELLERMANN CHRISTIAN
    • F02B27/04F01N1/06F02B25/14F02B33/04
    • F01N5/00F01N1/089F01N2490/04F01N2490/16F01N2590/06F02B27/04F02B2700/037Y02T10/146
    • The invention relates to a two-stroke engine (100) for an engine-driven tool, comprising a muffler (10), especially for a manually operated engine-driven tool such as a maintenance device for gardens or green spaces, for a hand-held tool such as a chain saw, a hand-held circular saw or an angle grinder or for a small motorcycle, a boat engine and the like, wherein the flow channel (12) between the muffler inlet (11) and the first chamber (15) is formed so as to promote flow such that the exhaust gas entering the muffler inlet (11) mainly enters the first chamber (15) due to its inertia and once the first chamber (15) is full flows back again, thereby producing a counterpressure in or in the direction of the combustion chamber (13). The aim of the invention is to improve said two-stroke engine. The counterpressure of the exhaust gas is produced at a point in time in which the piston (21) releases the outlet and the fuel-air mixture at least for its most part has entered the combustion chamber through the at least one transfer passage (25). The invention further relates to a corresponding suitable muffler.
    • 一种二冲程发动机(100)一种用于动力作业机械与消音器(10),特别是用于手动操作的电机的工作装置,例如花园和公园护理装置,手持式工具,如链锯,圆形锯或圆盘磨光机或助动车,船用发动机和类似物, 提高,其中,所述消声器入口(11)和第一腔室(15)之间的流动通道(12)被形成流线型,在消音器入口(11)流入的废气主要流入所述第一腔室(15),由于其质量惯性,并 再次流入第一腔室的填充后背部(15),并由此位于或朝向所述燃烧室(13)形成一个反压力,所以建议的排气背压的形成,其中所述出口通过发生在一个时间范围内 活塞(21)被释放,并且将空气 - 燃料混合物至少主要ð 厄奇是所述至少一个溢流通道(25)进入燃烧室。 这也是一个合适的消声器提出。