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公开(公告)号:US20050279518A1
公开(公告)日:2005-12-22
申请号:US10872316
申请日:2004-06-18
申请人: Shiro Kawamoto , Andrew Curtis , Derek Egerstaffer
发明人: Shiro Kawamoto , Andrew Curtis , Derek Egerstaffer
CPC分类号: B25F5/006
摘要: A power tool includes vibration isolation material positioned between an engine shroud and a drive shaft housing. The vibration isolation material isolates the drive shaft housing from engine vibration for radial, axial, and torsional movement without utilizing intermediate components.
摘要翻译: 电动工具包括位于发动机罩和驱动轴壳体之间的隔振材料。 振动隔离材料将驱动轴壳体与发动机振动隔离,用于径向,轴向和扭转运动,而不使用中间部件。
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公开(公告)号:US07070009B2
公开(公告)日:2006-07-04
申请号:US10872316
申请日:2004-06-18
CPC分类号: B25F5/006
摘要: A power tool includes vibration isolation material positioned between an engine shroud and a drive shaft housing. The vibration isolation material isolates the drive shaft housing from engine vibration for radial, axial, and torsional movement without utilizing intermediate components.
摘要翻译: 电动工具包括位于发动机罩和驱动轴壳体之间的隔振材料。 振动隔离材料将驱动轴壳体与发动机振动隔离,用于径向,轴向和扭转运动,而不使用中间部件。
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公开(公告)号:US06666184B2
公开(公告)日:2003-12-23
申请号:US10079149
申请日:2002-02-19
IPC分类号: F01M100
CPC分类号: F01M13/04 , F01M2013/0422 , F02B1/04 , F02B63/02 , F02B75/16 , F02B2075/027 , F02B2275/34 , F02F7/006 , F05C2201/021
摘要: A power tool having a rotary implement driven by a four-cycle engine. The engine crankcase is through a passageway which extends through a camshaft to a valve chamber. The rotating shaft member inhibits the escape of lubricating oil when the engine is running while permitting a lubricating oil mist to circulate through the engine.
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公开(公告)号:US07325526B2
公开(公告)日:2008-02-05
申请号:US10719148
申请日:2003-11-21
申请人: Shiro Kawamoto
发明人: Shiro Kawamoto
IPC分类号: F01M9/06
CPC分类号: F02B63/02
摘要: A four-stroke engine employs engine vibration for lubricating engine components. The engine vibration induces a ripple in a surface portion of the oil in an oil reservoir, which is located within a crankcase of the engine. The oil ripple causes misting of the oil, which lubricates exposed engine components. Providing a crankcase wall thickness of about 1.5 mm or less can increase the engine vibration. Alternatively, a clearance area located within the crankcase can be decreased to facilitate contact of the oil surface ripple with a counterweight, thereby splashing the oil onto exposed engine components. Vibration of the engine can be further increased by coupling a vibration plate or spring to a portion of the crankcase.
摘要翻译: 四冲程发动机采用发动机振动来润滑发动机部件。 发动机振动在位于发动机的曲轴箱内的储油器的油表面部分引起波动。 油波纹导致油的雾化,这润滑了暴露的发动机部件。 提供约1.5mm或更小的曲轴箱壁厚可以增加发动机振动。 或者,可以减小位于曲轴箱内的间隙区域,以便于油面纹波与配重的接触,从而将油溅到暴露的发动机部件上。 通过将振动板或弹簧联接到曲轴箱的一部分,可以进一步提高发动机的振动。
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公开(公告)号:US06945215B2
公开(公告)日:2005-09-20
申请号:US10443421
申请日:2003-05-22
CPC分类号: F02B63/02 , F01M11/064 , F02B2063/046 , F02B2075/027 , F02B2275/34 , F16N7/32
摘要: A portable, operator-carried power tool having an implement supported on frame, and a lightweight, four-stroke, engine drivably connected to the implement. The engine has a crankshaft situated in a crankshaft housing and a cylinder block secured to the housing, the crankshaft being provided with a crankcase ventilation passage extending between the crankcase and an outlet end in communication with an air/fuel induction passage. A passage establishes communication between the interior of the crankcase and the valve chamber through a cam and cam gear region of the cylinder block. An oil mist generator is connected drivably to the crankshaft for agitating liquid oil in the crankcase to establish a lubricating oil mist. The crankcase, cam region and valve chamber form a containment whereby oil mist is distributed throughout the engine during operation regardless of angular orientation.
摘要翻译: 一种便携式操作员携带的电动工具,其具有支撑在框架上的工具,以及可驱动地连接到工具的轻质四冲程发动机。 发动机具有位于曲轴壳体中的曲轴和固定到壳体的气缸体,曲轴设置有曲轴箱通风通道,该曲轴箱通风通道在曲轴箱和与空气/燃料引入通道连通的出口端之间延伸。 通道通过气缸体的凸轮和凸轮齿轮区域在曲轴箱的内部和阀室之间建立连通。 油雾发生器可驱动地连接到曲轴上,用于搅拌曲轴箱中的液体油以建立润滑油雾。 曲轴箱,凸轮区域和阀室形成容纳物,其中油雾在运行期间分布在整个发动机中,而不管角度定向。
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公开(公告)号:US6047678A
公开(公告)日:2000-04-11
申请号:US614835
申请日:1996-03-08
CPC分类号: F01M13/04 , F02B63/02 , F02B75/16 , F02F7/006 , F01M2013/0422 , F02B1/04 , F02B2075/027 , F02B2275/34 , F05C2201/021
摘要: A power tool having a rotary implement driven by a four-cycle engine. The engine crankcase is vented via an axial passageway which extends through at least one cam shaft axial shaft of the crankshaft and cam shaft. The rotating shaft member inhibits the escape of oil when the engine is running due to centrifugal force.
摘要翻译: 具有由四冲程发动机驱动的旋转工具的动力工具。 发动机曲轴箱通过轴向通道排出,轴向通道延伸穿过曲轴和凸轮轴的至少一个凸轮轴轴向轴。 当发动机由于离心力而运转时,旋转轴构件阻止油的逸出。
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公开(公告)号:US5701855A
公开(公告)日:1997-12-30
申请号:US725452
申请日:1996-10-04
CPC分类号: F02B63/00 , F02F1/22 , B60Y2200/41 , F02B2075/025
摘要: An internal combustion engine is provided with a cartridge containing a fuel/oil mixture where the fuel is liquid, normally gaseous fuel. The cartridges can be readily mounted or demounted from the engine, and provide flexibility of use coupled with easy starting. The use of the fuel/oil cartridges eliminates the need to separately mix oil and fuel, and eliminates substantial contact of the user with an oily fuel/oil mixture. The two cycle and four cycle cartridge-type engines are suitable for use in many hand-powered implements, including line trimmers, chain saws, leaf blowers, hedge trimmers, etc.
摘要翻译: 内燃机设置有容纳燃料/油混合物的药筒,其中燃料是液态的,通常是气态燃料。 墨盒可以容易地从发动机安装或拆卸,并提供使用灵活性以及容易起动。 使用燃油/油盒不需要单独混合油和燃料,并且消除使用者与油性燃料/油混合物的大量接触。 两个循环和四个循环筒式发动机适用于许多手动工具,包括线切割机,链锯,鼓风机,树篱修剪机等。
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公开(公告)号:US06568364B2
公开(公告)日:2003-05-27
申请号:US10068797
申请日:2002-02-05
IPC分类号: F01M1102
CPC分类号: F02B63/02 , F01M11/064 , F02B2063/046 , F02B2075/027 , F02B2275/34 , F16N7/32
摘要: An oil mist generator is connected drivably to the crankshaft for agitating liquid oil in the crankcase to establish a lubricating oil mist. The crankcase, the cam region and the valve chamber form a closed oil mist containment whereby lubricating oil mist is distributed throughout the engine during operation regardless of angular orientation of the engine. The crankshaft ventilation passage establishes lean crankcase gas distribution to the engine air/fuel intake. The crankcase is designed to avoid flow of liquid oil through the crankshaft passage when the engine is not running.
摘要翻译: 油雾发生器可驱动地连接到曲轴上,用于搅拌曲轴箱中的液体油以建立润滑油雾。 曲轴箱,凸轮区域和阀室形成封闭的油雾容器,由此在运行期间润滑油雾分布在整个发动机中,而与发动机的角度定向无关。 曲轴通风通道将稀薄的曲轴箱气体分配到发动机空气/燃料进气口。 曲轴箱设计成在发动机不运转时避免液态油通过曲轴通道。
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公开(公告)号:US06374796B1
公开(公告)日:2002-04-23
申请号:US09488218
申请日:2000-01-19
IPC分类号: F01M1102
CPC分类号: F02B63/02 , F01M11/064 , F02B2063/046 , F02B2075/027 , F02B2275/34 , F16N7/32
摘要: A portable, operator-carried power tool having an implement supported on an operator-carried frame, and a lightweight, four-stroke, internal combustion engine drivably connected to the implement and supported by the frame. The engine has a crankshaft situated in a crankshaft housing and a cylinder block secured to the crankshaft housing, the crankshaft being provided with a crankcase ventilation passage extending between the crankcase and an outlet end in communication with an air/fuel induction passage. A passage establishes communication between the interior of the crankcase and the valve chamber through a cam and cam gear region of the cylinder block. An oil mist generator is connected drivably to the crankshaft for agitating liquid oil in the crankcase to establish a lubricating oil mist. The crankcase, the cam region and the valve chamber form a closed oil mist containment whereby lubricating oil mist is distributed throughout the engine during operation regardless of angular orientation of the engine. The crankshaft ventilation passage establishes lean crankcase gas distribution to the engine air/fuel intake. The crankcase is designed to avoid flow of liquid oil through the crankshaft passage when the engine is not running.
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公开(公告)号:US06363904B1
公开(公告)日:2002-04-02
申请号:US09634230
申请日:2000-08-09
IPC分类号: F01M1100
CPC分类号: F01M13/04 , F01M2013/0422 , F02B1/04 , F02B63/02 , F02B75/16 , F02B2075/027 , F02B2275/34 , F02F7/006 , F05C2201/021
摘要: A power tool having a rotary implement driven by a four-cycle engine. The engine crankcase is through a passageway which extends through a camshaft to a valve chamber. The rotating shaft member inhibits the escape of lubricating oil when the engine is running while permitting a lubricating oil mist to circulate through the engine.
摘要翻译: 具有由四冲程发动机驱动的旋转工具的动力工具。 发动机曲轴箱通过一个通过凸轮轴延伸到阀室的通道。 当发动机运转时,旋转轴构件抑制润滑油的逸出,同时允许润滑油雾通过发动机循环。
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