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1. 发明申请

US20130037011A1 Two-Stroke Internal Combustion Engine 有权
标题翻译：二冲程内燃机
公开(公告)号：US20130037011A1
公开(公告)日：2013-02-14
申请号：US13569239
申请日：2012-08-08
申请人： Takamasa Otsuji , Buhei Kobayashi
发明人： Takamasa Otsuji , Buhei Kobayashi
IPC分类号： F02B33/04
CPC分类号： F02B33/04 , F02B25/02 , F02B63/02 , F02F1/22
摘要： It is intended to effectively prevent blow-by with no need for large changes in typical structures of two-cycle internal combustion engines. A main scavenging passage (24) for supplying air-fuel mixture from a crankcase to a combustion chamber for scavenging purposes has a branch scavenging passage (26) that extends upward aslant toward an intake port (14). The main scavenging passage (24) communicates with a first scavenging port (20) located nearer to an exhaust port (16). The branch scavenging passage (26) communicates with a second scavenging port (22). A mean cross-sectional area of the branch scavenging passage (26) is smaller than that of the main scavenging passage (24). Cross-sectional area of a portion (24b) next to an inlet port (24a) of the main scavenging passage (24) opening to the crankcase is smaller than the sum of cross-sectional areas of the first and second scavenging ports (20, 22).
摘要翻译：旨在有效地防止窜气，而不需要两轮内燃机的典型结构的大的变化。用于将空气 - 燃料混合物从曲轴箱供应到用于清扫目的的燃烧室的主清扫通道（24）具有向吸入口（14）向上倾斜地延伸的分支扫气通道（26）。主清扫通道（24）与位于更靠近排气口（16）的第一扫气口（20）连通。分支清除通道（26）与第二扫气口（22）连通。分支清除通道（26）的平均横截面面积小于主清扫通道（24）的平均横截面面积。与通向曲轴箱的主扫气通道（24）的入口（24a）相邻的部分（24b）的横截面面积小于第一和第二扫气孔（20,28）的横截面面积的总和， 22）。

2. 发明授权

US08967100B2 Two-stroke internal combustion engine 有权
标题翻译：二冲程内燃机
公开(公告)号：US08967100B2
公开(公告)日：2015-03-03
申请号：US13569239
申请日：2012-08-08
申请人： Takamasa Otsuji , Buhei Kobayashi
发明人： Takamasa Otsuji , Buhei Kobayashi
IPC分类号： F02B25/02 , F02B33/04 , F02F1/22 , F02B63/02
CPC分类号： F02B33/04 , F02B25/02 , F02B63/02 , F02F1/22
摘要： It is intended to effectively prevent blow-by with no need for large changes in typical structures of two-cycle internal combustion engines. A main scavenging passage (24) for supplying air-fuel mixture from a crankcase to a combustion chamber for scavenging purposes has a branch scavenging passage (26) that extends upward aslant toward an intake port (14). The main scavenging passage (24) communicates with a first scavenging port (20) located nearer to an exhaust port (16). The branch scavenging passage (26) communicates with a second scavenging port (22). A mean cross-sectional area of the branch scavenging passage (26) is smaller than that of the main scavenging passage (24). Cross-sectional area of a portion (24b) next to an inlet port (24a) of the main scavenging passage (24) opening to the crankcase is smaller than the sum of cross-sectional areas of the first and second scavenging ports (20, 22).
摘要翻译：旨在有效地防止窜气，而不需要两轮内燃机的典型结构的大的变化。用于将空气 - 燃料混合物从曲轴箱供应到用于清扫目的的燃烧室的主清扫通道（24）具有向吸入口（14）向上倾斜地延伸的分支扫气通道（26）。主清扫通道（24）与位于更靠近排气口（16）的第一扫气口（20）连通。分支清除通道（26）与第二扫气口（22）连通。分支清除通道（26）的平均横截面面积小于主清扫通道（24）的平均横截面面积。与通向曲轴箱的主扫气通道（24）的入口（24a）相邻的部分（24b）的横截面面积小于第一和第二扫气孔（20,28）的横截面面积的总和， 22）。

3. 发明授权

US06497204B1 Stratified scavenging two-stroke cycle engine 有权
标题翻译：分层扫气二冲程循环发动机
公开(公告)号：US06497204B1
公开(公告)日：2002-12-24
申请号：US09959047
申请日：2001-10-15
申请人： Hiroshi Miyazaki , Takamasa Otsuji
发明人： Hiroshi Miyazaki , Takamasa Otsuji
IPC分类号： F02B3304
CPC分类号： F02F1/22 , F02B1/04 , F02B17/00 , F02B25/14 , F02B25/22 , F02B33/04 , F02B75/16 , F02B2075/025 , F02M35/1019 , F02M35/108
摘要： The engine can improve a leading air suction efficiency, has a simple structure and a low cost. Accordingly, in a stratified scavenging two-stroke cycle engine provided with an exhaust port (22) and a scavenging port (21) which are connected to a cylinder chamber (10), a leading air suction port (24) not connected to the cylinder chamber and a crank chamber (11), an air-fuel mixture suction port (23) connected to the crank chamber, a scavenging flow passage (20) connecting between the scavenging port and the crank chamber, and a piston groove (25) connecting between the leading air suction port and the scavenging port and not connecting between the air-fuel mixture suction port and the scavenging port at a time of a suction stroke, and disposed in an outer peripheral portion of the piston (4), the leading air suction port is positioned at an opposite side to the air-fuel mixture suction port with respect to an axis of the cylinder (3).
摘要翻译：发动机可以提高吸气效率，结构简单，成本低。因此，在具有连接到气缸室（10）的排气口（22）和排气口（21）的分层清扫二冲程循环发动机中，未连接到气缸的前进空气吸入口（24）与曲柄室连接的空气 - 燃料混合物吸入口（23），连接在扫气口和曲柄室之间的扫气流路（20）和连接在曲柄室（11）之间的活塞槽在引导空气吸入口和扫气口之间，并且在吸入行程时不与空气 - 燃料混合物吸入口和扫气口连接，并且设置在活塞（4）的外周部分中，吸入口相对于气缸（3）的轴线位于空气 - 燃料混合物吸入口的相对侧。

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