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公开(公告)号：US09534535B2
公开(公告)日：2017-01-03
申请号：US13668570
申请日：2012-11-05
申请人： Yuji Takahashi , Yuki Nakamura , Masaki Kurimoto , Masayuki Iwase
发明人： Yuji Takahashi , Yuki Nakamura , Masaki Kurimoto , Masayuki Iwase
CPC分类号： F02B63/02 , F02B2075/027
摘要： A four-stroke engine for a working machine with a rod is provided, where a tool is attached to one end of the rod in a longitudinal direction and the four-stroke engine is fixed to the other end of the rod in use. The four-stroke engine includes: an oil circulation pathway; and a gas-liquid separating chamber configured to separate oil from blowby gas. The gas-liquid separating chamber includes: an inflow part into which the blowby gas is introduced from the oil circulation pathway; oil discharge parts configured to flow the oil separated from the blowby gas back to the oil circulation pathway; and a blowby gas discharge part configured to discharge the blowby gas not containing oil mist from the gas-liquid separating chamber and supplies the blowby gas to an intake passageway to a combustion chamber.
摘要翻译： 提供一种用于具有杆的工作机械的四冲程发动机，其中工具沿纵向方向附接到杆的一端，并且四冲程发动机在使用中固定到杆的另一端。 四冲程发动机包括：油循环通道; 以及气液分离室，其构造成将油与窜气分离。 气液分离室包括：从油循环路径引入排气的流入部; 排油部件，其构造成使从所述窜气返回到所述油循环路径的油分离; 以及排气部，其构成为从气液分离室排出不含油雾的排气，并将排气供给到进气通路到燃烧室。
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公开(公告)号：US08978614B2
公开(公告)日：2015-03-17
申请号：US13668710
申请日：2012-11-05
申请人： Yuji Takahashi , Masaki Kurimoto
发明人： Yuji Takahashi , Masaki Kurimoto
CPC分类号： F01M11/02 , F01M1/04 , F01M11/0004 , F01M11/065 , F01M13/00 , F01M2011/0041 , F16N7/32
摘要： A lubrication apparatus for a four-stroke engine includes an oil tank, a supply passageway having an opening to supply oil mist from the oil tank to driving parts, the opening being provided in the oil tank. A partition is provided between the opening and a side wall of the oil tank, the partition being formed by partition plate members so as to divide an inside of the oil tank into an inner area and an outer area. The inner area includes the opening, and the outer area is defined between the inner area and the side wall. Oil can freely move between the inner area and the outer area, and the opening is placed in a position above a surface of the oil accumulated in the oil tank even when the four-stroke engine is tilted in every direction.
摘要翻译： 一种用于四冲程发动机的润滑装置包括一个油箱，一个供油通道，该供油通道具有一个从油箱向驱动部分供油的开口，该开口设置在油箱中。 在油箱的开口和侧壁之间设有隔板，隔板由隔板构件形成，以便将油箱的内部分成内部区域和外部区域。 内部区域包括开口，并且外部区域限定在内部区域和侧壁之间。 油可以在内部区域和外部区域之间自由移动，并且即使当四冲程发动机在每个方向上倾斜时，开口也被放置在积聚在油箱中的油面上方的位置。
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公开(公告)号：US08701622B2
公开(公告)日：2014-04-22
申请号：US12876722
申请日：2010-09-07
IPC分类号： F01M9/10
CPC分类号： F01M1/04 , F01M9/10 , F01M11/067 , F01M13/022 , F01M13/025 , F01M13/0405
摘要： A lubrication system for a portable four-stroke engine includes an opening end of the breather passage is disposed at substantially a center of a valve-operating chamber, and the valve-operating chamber is formed by attaching a valve-operating chamber cover. An inner cover is attached to an inner surface of the valve-operating chamber cover so as to be provided along and in contact with the inner surface of the valve-operating chamber cover. A suction passage is formed as a gap between the circumferential edge of the top plate portion and the inner cover. Three or more suction tubes that are in communication with the suction passage are provided in the inner cover, each of the suction tubes having an opening end. At least one of the opening ends of the suction tubes is provided lower than the opening end of the breather passage in an attitude of the engine during use.
摘要翻译： 用于便携式四冲程发动机的润滑系统包括通气通道的开口端设置在阀操作室的大致中心处，并且阀操作室通过安装阀操作室盖而形成。 内盖附接到阀操作室盖的内表面，以便与阀操作室盖的内表面一并设置。 吸入通道形成为顶板部分的圆周边缘和内盖之间的间隙。 与吸入通道连通的三个或更多个吸管设置在内盖中，每个吸管具有开口端。 吸入管的开口端中的至少一个在使用期间以发动机的姿态设置得比通气通道的开口端低。
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公开(公告)号：US08695563B2
公开(公告)日：2014-04-15
申请号：US12876678
申请日：2010-09-07
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32
摘要： A lubrication system for a four cycle engine that lubricates the valve mechanism with the oil mist of the concentration, lowered by the liquefying means. The lubrication system has an oil feeding passage for connecting an oil reservoir with the crank chamber and sending the oil retained in liquid form in the oil reservoir to the crank chamber under a negative pressure of the crank chamber, a communication passage for connecting the crank chamber with the oil reservoir and sending oil mist generated in the crank chamber to the oil reservoir when under a positive pressure of the crank chamber, liquefying means in the oil reservoir for liquefying the oil mist sent from the communication passage to the oil reservoir to decrease the concentration of the oil mist, and a supply passage for supplying the oil mist from the oil reservoir to the valve operating chamber through the liquefying means.
摘要翻译： 一种用于四冲程发动机的润滑系统，其通过液化装置降低浓度的油雾来润滑阀机构。 所述润滑系统具有用于将储油器与所述曲柄室连接的供油通路，并且在所述曲柄室的负压下将保持在所述油箱中的液体形式的油输送到所述曲轴室，连通所述曲轴室 在曲柄室的正压力下，在油箱内产生的曲柄室内产生的油雾向储油器发送液化装置，用于将从连通路向油箱输送的油雾液化， 油雾的浓度，以及用于通过液化装置将油雾从油箱供给到阀操作室的供给通路。
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公开(公告)号：USRE33142E
公开(公告)日：1990-01-09
申请号：US331294
申请日：1989-03-31
IPC分类号： F04D25/06 , F04D29/04 , F04D29/059 , F04D29/62
CPC分类号： F04D29/059 , F04D25/02 , F04D25/06 , F04D29/624 , Y10T74/19684
摘要： A centrifugal compressor for use in turbo-refrigerators, for example, has a motor casing frame section in which a drive motor is accomodated and a gear casing frame section in which a multiplying gear mechanism is accomodated. The multiplying gear mechanism is connected at its input side with the drive motor and at its output side with an impeller. The mechanism has a first shaft including a rotor shaft of the drive motor and a gear shaft carrying a multiplying gear and separably connected directly with the rotor shaft, a second shaft mounting the impeller and having a pinion meshing with the speed multiplying gear, and bearings mounted on bearing casing frame sections for supporting the first and second shafts at their opposed ends, respectively. The motor casing frame section, gear casing frame section and bearing casing frame section are integrally formed as a unitary body.
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公开(公告)号：US08707928B2
公开(公告)日：2014-04-29
申请号：US13502799
申请日：2010-06-23
摘要： A lubrication apparatus for a four-stroke engine that prevents lubrication failure from occurring around the crankshaft and reliably prevents oil from remaining in a valve operating chamber includes: an intake part positioned below the level of an oil A in an oil reservoir even if the oil reservoir is tilted and the level of the oil A changes; an oil feeding passageway that sucks up the oil A from the intake part and supplies the oil A to the crank chamber; and an direct passageway that allows communication between a valve operating chamber and a crank chamber when a negative pressure is created in the crank chamber. Open end parts of the oil feeding passageway and the direct passageway which are open in the crank chamber are provided to open as the piston moves from a position near the top dead center to the top dead center.
摘要翻译： 用于四冲程发动机的润滑装置，其防止在曲轴周围发生润滑故障并可靠地防止油保持在阀操作室中，包括：进气部分位于储油器中的油A的下方，即使油 水库倾斜，油A水平变化; 供油通道，其从进气部分吸取油A并将油A供给到曲柄室; 以及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的直接通道。 供油通道的敞开的端部和在曲柄室中敞开的直接通道设置成随着活塞从靠近上止点的位置移动到上止点而打开。
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公开(公告)号：US20110067669A1
公开(公告)日：2011-03-24
申请号：US12876678
申请日：2010-09-07
IPC分类号： F01M1/02
CPC分类号： F01M1/04 , F01M3/04 , F01M9/10 , F01M11/065 , F01M13/00 , F01M13/022 , F01M13/025 , F16N7/32
摘要： A lubrication system for a four cycle engine lubricates the valve mechanism with the oil mist of the concentration lowered by the liquefying means.The lubrication system has an oil feeding passage for connecting an oil reservoir and the crank chamber and sending the oil retained in liquid form in the oil reservoir to the crank chamber under a negative pressure of the crank chamber, a communication passage for connecting the crank chamber and the oil reservoir and sending oil mist generated in the crank chamber to the oil reservoir when under a positive pressure of the crank chamber, liquefying means in the oil reservoir for liquefying the oil mist sent from the communication passage to the oil reservoir to decrease the concentration of the oil mist, and a supply passage for supplying the oil mist from the oil reservoir to the valve operating chamber through the liquefying means.
摘要翻译： 用于四循环发动机的润滑系统利用液化装置降低浓度的油雾来润滑阀机构。 润滑系统具有用于连接储油器和曲柄室的供油通道，并且在曲柄室的负压下将保持在油箱中的液体形式的油输送到曲柄室，连通曲柄室 并且在曲柄室的正压力下，在储油器中产生的曲柄室内产生的油雾向储油器发送，在储油器中的液化装置用于液化从连通路向油箱输送的油雾， 油雾的浓度，以及用于通过液化装置将油雾从油箱供给到阀操作室的供给通路。
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公开(公告)号：US4743174A
公开(公告)日：1988-05-10
申请号：US907132
申请日：1986-09-12
CPC分类号： F04D25/06 , F04D29/059 , F04D29/624 , Y10T74/19684
摘要： A centrifugal compressor for use in turbo-refrigerators, for example, has a motor casing frame section in which a drive motor is accomodated and a gear casing frame section in which a multiplying gear mechanism is accomodated. The multiplying gear mechanism is connected at its input side with the drive motor and at its output side with an impeller. The mechanism has a first shaft including a rotor shaft of the drive motor and a gear shaft carrying a multiplying gear and separably connected directly with the rotor shaft, a second shaft mounting the impeller and having a pinion meshing with the speed multiplying gear, and bearings mounted on bearing casing frame sections for supporting the first and second shafts at their opposed ends, respectively. The motor casing frame section, gear casing frame section and bearing casing frame section are integrally formed as a unitary body.
摘要翻译： 例如，在涡轮制冷机中使用的离心式压缩机具有电动机壳体框架部，驱动马达被容纳在该马达壳体框架部分和齿轮箱框架部分，在该齿轮壳体框架部分中容纳了倍增齿轮机构。 倍增齿轮机构在其输入侧与驱动电机连接，其输出侧连接有叶轮。 该机构具有包括驱动电动机的转子轴的第一轴和承载有与转子轴直接分离的倍增齿轮的齿轮轴，安装叶轮并具有与变速齿轮啮合的小齿轮的第二轴和轴承 安装在轴承壳体框架部分上，用于分别在其相对端处支撑第一和第二轴。 电动机壳体框架部分，齿轮箱框架部分和轴承壳体框架部分整体形成为一体。
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公开(公告)号：US20120199097A1
公开(公告)日：2012-08-09
申请号：US13502799
申请日：2010-06-23
IPC分类号： F01M1/04
摘要： A lubrication apparatus for a four-stroke engine (1) is provided that prevents lubrication failure from occurring around the crankshaft and reliably prevents oil from remaining in a valve operating chamber (30). The lubrication apparatus for the four-stroke engine (1) includes: an intake part (55) positioned below the level of an oil A in an oil reservoir (7) even if the oil reservoir (7) is tilted and the level of the oil A changes; an oil feeding passageway (54) that sucks up the oil A from the intake part (55) and supplies the oil A to the crank chamber (5a); and an direct passageway (47) that allows communication between a valve operating chamber (30) and a crank chamber (5a) when a negative pressure is created in the crank chamber (5a). Open end parts (47a, 54a) of the oil feeding passageway (54) and the direct passageway (47) which are open in the crank chamber (5a) are provided to open as the piston (13) moves from a position near the top dead center to the top dead center. It is possible to control the flow rate of oil supplied to the crank chamber (5a) via the oil supply passageway (54) by means of a flow rate control passageway (67) that allows communication between a supply passageway (51) to supply oil mist from the oil reservoir (7) to the valve operating chamber (30) and the oil feeding passageway (54).
摘要翻译： 提供一种用于四冲程发动机（1）的润滑装置，其防止在曲轴周围发生润滑故障，并且可靠地防止油残留在阀操作室（30）中。 用于四冲程发动机（1）的润滑装置包括：即使储油器（7）倾斜并且油位（7）的水平位于油藏（7）中的位于油A的高度之下的进气部分（55） 油A变化; 供油通路（54），其从所述进气部（55）吸入油A，并将油A供给到所述曲柄室（5a）; 以及当在曲柄室（5a）中产生负压时允许阀操作室（30）和曲柄室（5a）之间的连通的直接通道（47）。 供油通道（54）的开口端部（47a，54a）和在曲柄室（5a）中敞开的直接通道（47）设置成随着活塞（13）从靠近顶部 死中心到上死点。 可以通过流量控制通道（67）来控制经由供油通道（54）供应到曲柄室（5a）的油的流量，流量控制通道（67）允许供给通道（51） 从油箱（7）到阀操作室（30）和供油通道（54）的雾。
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公开(公告)号：US20110067659A1
公开(公告)日：2011-03-24
申请号：US12876722
申请日：2010-09-07
IPC分类号： F01M9/10
CPC分类号： F01M1/04 , F01M9/10 , F01M11/067 , F01M13/022 , F01M13/025 , F01M13/0405
摘要： A lubrication system for a portable four-stroke engine includes an opening end of the breather passage is disposed at substantially a center of a valve-operating chamber, and the valve-operating chamber is formed by attaching a valve-operating chamber cover. An inner cover is attached to an inner surface of the valve-operating chamber cover so as to be provided along and in contact with the inner surface of the valve-operating chamber cover. A suction passage is formed as a gap between the circumferential edge of the top plate portion and the inner cover. Three or more suction tubes that are in communication with the suction passage are provided in the inner cover, each of the suction tubes having an opening end. At least one of the opening ends of the suction tubes is provided lower than the opening end of the breather passage in an attitude of the engine during use.
摘要翻译： 用于便携式四冲程发动机的润滑系统包括通气通道的开口端设置在阀操作室的大致中心处，并且阀操作室通过安装阀操作室盖而形成。 内盖附接到阀操作室盖的内表面，以便与阀操作室盖的内表面一并设置。 吸入通道形成为顶板部分的圆周边缘和内盖之间的间隙。 与吸入通道连通的三个或更多个吸管设置在内盖中，每个吸管具有开口端。 吸入管的开口端中的至少一个在使用期间以发动机的姿态设置得比通气通道的开口端低。
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