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    • 65. 发明授权
    • Stratified scavenging two-stroke cycle engine
    • 分层扫气二冲程循环发动机
    • US06497204B1
    • 2002-12-24
    • US09959047
    • 2001-10-15
    • Hiroshi MiyazakiTakamasa Otsuji
    • Hiroshi MiyazakiTakamasa Otsuji
    • F02B3304
    • F02F1/22F02B1/04F02B17/00F02B25/14F02B25/22F02B33/04F02B75/16F02B2075/025F02M35/1019F02M35/108
    • 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).
    • 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。