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    • 42. 发明申请
    • LUBRICATION APPARATUS FOR FOUR-STROKE ENGINE
    • 四冲程发动机润滑装置
    • US20130118440A1
    • 2013-05-16
    • US13665995
    • 2012-11-01
    • Yuki NAKAMURA
    • Yuki NAKAMURA
    • F01M1/04
    • F01M1/04
    • A lubrication apparatus for a four-stroke engine includes a piston, a cylinder, a crank chamber and a valve operating chamber. The lubrication apparatus configured to lubricate driving parts while circulating oil mist through an oil circulation pathway, using pressure fluctuation in the crank chamber, the pressure fluctuation being caused by reciprocating motion of the piston. The lubrication apparatus further includes a direct passageway configured to allow communication between the valve operating chamber and the crank chamber when a negative pressure is created in the crank chamber. The direct passageway includes a flexible tube part that is formed out of the cylinder.
    • 用于四冲程发动机的润滑装置包括活塞,气缸,曲柄室和气门操作室。 所述润滑装置构成为,通过利用曲柄室内的压力波动使油雾循环通过油循环路径而润滑驱动部,所述压力波动是由活塞的往复运动引起的。 润滑装置还包括直接通道,其构造成当在曲柄室中产生负压时允许阀操作室和曲柄室之间的连通。 直接通道包括形成在气缸外的柔性管部分。
    • 45. 发明申请
    • ENGINE FOR PORTABLE WORKING MACHINE
    • 便携式工作机发动机
    • US20130068179A1
    • 2013-03-21
    • US13609450
    • 2012-09-11
    • Yuki NAKAMURA
    • Yuki NAKAMURA
    • F01P1/00
    • F02B63/02F01P5/06
    • An engine for a portable working machine includes: a crankshaft to which the working machine is coupled; an air-cooling fan coupled to one end side of the crankshaft; a fan casing enclosing the air-cooling fan; and a bottom cover located in a bottom surface side of the engine and connected to the fan casing. Air suction ports and guide parts are provided in one side of the bottom cover, the air suction ports sucking in air supplied from the air-cooling fan, and the guide parts extending from the air suction ports to the impeller blades of the air-cooling fan.
    • 一种用于便携式工作机的发动机包括:工作机器连接到的曲轴; 联接到所述曲轴的一端侧的空气冷却风扇; 封闭风冷风扇的风扇壳; 以及位于发动机的底面侧并与风扇壳体连接的底盖。 空气吸入口和引导部分设置在底盖的一侧,空气吸入口吸入从空气冷却风扇供应的空气,引导部分从空气吸入口延伸到空气冷却的叶轮叶片 风扇。