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1. 发明申请

WO2010114438A1 TWO-STROKE INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：两冲程内燃机
公开(公告)号：WO2010114438A1
公开(公告)日：2010-10-07
申请号：PCT/SE2009/050340
申请日：2009-03-31
申请人： HUSQVARNA AB , BERNEKLEV, Joel , BERGMAN, Mikael
发明人： BERNEKLEV, Joel , BERGMAN, Mikael
IPC分类号： F02M71/00 , F02B25/22 , F02B63/02 , F02M71/04
CPC分类号： F02M71/04 , F01M3/02 , F01N3/2885 , F01N2590/06 , F02B25/14 , F02B25/22 , F02B2075/025 , F02B2075/125 , F02M17/36 , F02M69/045 , F02M69/10 , Y02T10/123
摘要： A two stroke crank case scavenged two-stroke internal combustion engine, the engine including: - a cylinder (2) configured to reciprocatingly receive a piston (6) therein defining a combustion chamber (8), the combustion chamber comprising an ignition means (5) for igniting an air/fuel mixture and an exhaust port (40) for evacuating the exhaust fumes, - a crank case (3) including a crank shaft (18), - an indirect fuel supply system (4), such as a carburettor (12) or a low pressure fuel-injection system, for supplying fuel to the crank case (3) to be scavenged to the combustion chamber (8), - at least one transfer duct (20, 20') each extending from the crank case (3) to at least one corresponding transfer port (21, 21') for connecting to the combustion chamber (8), - additional air filling means (25, 24, 27, 23, 23', 22, 22',26, 26') for at least partly filling the transfer duct/s (20, 20') with additional air from the transfer port (21, 21') towards the crank case (3), - and a direct injection means (7) for injecting fuel directly into the combustion chamber (8).
摘要翻译：二冲程曲柄箱被清除的二冲程内燃机，所述发动机包括： - 构造成在其中往复运动地容纳其中限定燃烧室（8）的活塞（6）的气缸（2），所述燃烧室包括点火装置（5）），用于点燃空气/燃料混合物和用于排空废气的排气口（40）， - 包括曲轴（18）的曲柄箱（3）， - 间接燃料供应系统（4），例如化油器（12）或低压燃料喷射系统，用于向曲柄箱（3）供应燃料以被清除到燃烧室（8）; - 至少一个传递管道（20,20'），每个传动管道（20,20'）从曲柄壳体（3）连接到用于连接到燃烧室（8）的至少一个对应的传送口（21,21'）， - 附加的空气填充装置（25,24,27,23,23'，22,22'，26 ，26'），用于至少部分地将来自所述输送口（21,21'）的空气与所述曲柄箱（3）填充所述输送管道（20,20'），以及直接i 用于将燃料直接喷射到燃烧室（8）中的喷射装置（7）。

2. 发明申请

WO00070210A1 INTERNAL COMBUSTION ENGINE WHICH PRODUCES SMALL AMOUNTS OF EXHAUST GAS 审中-公开
标题翻译：排气不畅内燃发动机
公开(公告)号：WO00070210A1
公开(公告)日：2000-11-23
申请号：PCT/DE2000/001514
申请日：2000-05-15
IPC分类号： F02B25/14 , F02B29/06 , F02B75/02 , F02B75/16 , F02B75/34 , F02M71/02 , F02M71/04 , F02B1/04 , F01B29/04 , F01L11/02 , F04B39/00
CPC分类号： F02M71/04 , F02B25/14 , F02B29/06 , F02B75/16 , F02B75/34 , F02B2075/025 , F02M71/02 , Y02T10/146
摘要： According to the invention, a spark-ignited two-cycle engine comprises a pump for improving the exhaust gas quality thereof. Said pump delivers fuel or an air-fuel mixture into the combustion chamber (9) after the exhaust port or valve is closed. A converted miniature two-cycle engine is used as a mixture pump. Overall, the engine comprises a simple and robust design and exhibits an improved exhaust gas quality. According to the invention, it is useful to use a separate carburetor to regulate idling. Said carburetor is connected to the crankcase of the two-cycle engine and supplies only a base load (idling). A divided piston with a port between the piston head (45) and the piston skirt (45) is also useful for improving the quality of the exhaust gas. By virtue of said piston, the smallest amounts of lubricant are required and it is possible to attain increased piston head temperatures without the engine losing large amounts of heat.
摘要翻译：火花点火二冲程发动机具有改善其一个泵，该泵的燃料或燃料 - 空气混合物的出口或-Ventils的开闭后促进进入燃烧室（9）的废气质量。作为混合物泵送转换微型二冲程发动机被使用。该发动机是建立整体简洁和完善，提高了废气质量。最好是调节经由单独的化油器，其被连接到所述二冲程发动机的曲轴箱和仅一个基本负载（空转）返回空转。此外，废气质量是配备有活塞头（45）和活塞裙部（46）的益处，即允许使用润滑剂的最小量的以及在电动机的低热量损失增加活塞头温度之间的时隙中的分裂烧瓶中。

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