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公开(公告)号：US07431000B2
公开(公告)日：2008-10-07
申请号：US10516947
申请日：2003-07-02
申请人： Noriaki Fujii , Hiromu Nakamura , Junichi Iwamoto
发明人： Noriaki Fujii , Hiromu Nakamura , Junichi Iwamoto
IPC分类号： F01L1/18
CPC分类号： F01L13/0063 , F01L1/18 , F01L1/185 , F01L13/0005 , F01L13/0021 , F01L2001/0535 , F01L2105/00 , Y10T74/20882 , Y10T74/2107
摘要： A pair of link arms each supported at one end thereof on an engine body for swinging movement about an axis parallel to a rotational axis for a valve-operating cam are connected at the other ends, for relative turning movement about an axis parallel to the rotational axis, directly to a rocker arm having a valve abutment abutting against an engine valve and a cam abutment contacting with the valve-operating cam. At least any one of the link arms is swingably supported at one end thereof on the engine body for continuous movement within a plane perpendicular to a rotational axis for the valve-operating cam. Such an arrangement ensures that a valve-operating system can be constructed compactly, and the opening lift amount of the engine valve can be changed continuously, while ensuring an excellent followability to the valve-operating cam.
摘要翻译： 一对连杆臂在其一端支撑在发动机主体上，用于围绕平行于用于阀操作凸轮的旋转轴线的轴线摆动运动，在另一端连接，用于围绕平行于旋转轴线的轴线进行相对转动 轴，直接连接到具有邻接发动机气门的阀座和与阀操作凸轮接触的凸轮支座的摇臂。 至少任一个连杆臂在其一端可摆动地支撑在发动机主体上，用于在垂直于用于阀操作凸轮的旋转轴线的平面内连续运动。 这样的结构确保了可以紧凑地构造阀操作系统，并且可以连续地改变发动机气门的打开提升量，同时确保对阀操作凸轮的良好追随性。
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公开(公告)号：US06425359B2
公开(公告)日：2002-07-30
申请号：US09887812
申请日：2001-06-22
IPC分类号： F01L134
CPC分类号： F01L13/0036 , F01L1/0532 , F01L1/12 , F01L1/185 , F01L1/26 , F01L2001/0537 , F02B2275/18
摘要： A valve moving apparatus of an internal combustion engine has an intake camshaft with an intake variable cam piece for opening and closing an intake valve, and an exhaust camshaft with an exhaust variable cam piece for opening and closing an exhaust valve. Each variable cam piece has a low speed cam section and a high speed cam section and is movable axially relatively to the camshaft. A hydraulic driving mechanism is provided for moving the variable cam piece axially in accordance with engine operation condition. The driving mechanism has a driving piston and arms touching both sides of the variable cam piece. When valve operating characteristic of the intake valve or the exhaust valve is changed corresponding to engine operation condition, response is improved. The engine can be miniaturized.
摘要翻译： 内燃机的阀移动装置具有进气凸轮轴，其具有用于打开和关闭进气门的进气可变凸轮件，以及具有用于打开和关闭排气阀的排气可变凸轮件的排气凸轮轴。 每个可变凸轮件具有低速凸轮部分和高速凸轮部分，并且可相对于凸轮轴轴向移动。 提供液压驱动机构，用于根据发动机运转状态轴向移动可变凸轮片。 驱动机构具有驱动活塞和臂接触可变凸轮件的两侧。 当根据发动机运转条件改变进气门或排气门的阀门操作特性时，响应得到改善。 发动机可以小型化。
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公开(公告)号：US20060102118A1
公开(公告)日：2006-05-18
申请号：US10516947
申请日：2003-07-02
申请人： Noriarki Fujii , Hiromu Nakamura , Junichi Iwamoto
发明人： Noriarki Fujii , Hiromu Nakamura , Junichi Iwamoto
CPC分类号： F01L13/0063 , F01L1/18 , F01L1/185 , F01L13/0005 , F01L13/0021 , F01L2001/0535 , F01L2105/00 , Y10T74/20882 , Y10T74/2107
摘要： A pair of link arms (19A and 20A) each supported at one end thereof on an engine body (1) for swinging movement about an axis parallel to a rotational axis for a valve-operating cam (16) are connected at the other ends, for relative turning movement about an axis parallel to the rotational axis, directly to a rocker arm (18A) having a valve abutment (15) abutting against an engine valve (6) and a cam abutment (17) contacting with the valve-operating cam (16). At least any one of the link arms (19A and 20A) is swingably supported at one end thereof on the engine body (1) for continuous movement within a plane perpendicular to a rotational axis for the valve-operating cam (16). Such an arrangement ensures that a valve-operating system can be constructed compactly, and the opening lift amount of the engine valve can be changed continuously, while ensuring an excellent followability to the valve-operating cam.
摘要翻译： 另一端连接有一对连杆臂（19A和20A），其一端支撑在发动机主体（1）上，用于围绕平行于用于阀操作凸轮（16）的旋转轴线的轴线摆动运动 端部，用于围绕平行于旋转轴线的轴线的相对转动运动，直接连接到具有邻接发动机气门（6）的阀座（15）和与阀接触的凸轮抵接件（17）的摇臂（18A） 操作凸轮（16）。 连杆臂（20A和20A）中的至少任何一个在其一端可摆动地支撑在发动机主体（1）上，用于在与用于阀操作凸轮（16）的旋转轴线垂直的平面内连续移动。 这样的结构确保了可以紧凑地构造阀操作系统，并且可以连续地改变发动机气门的打开提升量，同时确保对阀操作凸轮的良好追随性。
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公开(公告)号：US06418898B2
公开(公告)日：2002-07-16
申请号：US09745992
申请日：2000-12-26
IPC分类号： F01L118
CPC分类号： F01L1/18 , F01L1/26 , Y10T74/20882
摘要： In a valve operating system in an internal combustion engine, a rocker arm has a plurality of valve abutments provided thereon and capable of being individually put into abutment against upper ends of a plurality of engine valves cam abutments, and also has cam abutments provided thereon to come into contact with a valve operating cam. Wall-removed portions are formed in the rocker arm at locations corresponding to the cam abutments and open at opposite sides of the rocker arm. Thus, it is possible to provide a reduction in weight of the rocker arm.
摘要翻译： 在内燃机的阀门操作系统中，摇臂具有设置在其上的多个阀座，能够单独地抵靠多个发动机气门凸轮基台的上端，并且还具有设置在其上的凸轮基台 与阀门操作凸轮接触。 壁移除部分在摇臂中形成在与凸轮基座相对应的位置处，并且在摇臂的相对侧开口。 因此，可以减轻摇臂的重量。
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公开(公告)号：US06347607B2
公开(公告)日：2002-02-19
申请号：US09746063
申请日：2000-12-26
IPC分类号： F01L118
CPC分类号： F01L1/267 , F01L1/053 , F01L1/18 , F01L2001/0475 , F01L2105/00 , F01L2105/02 , Y10T74/20882
摘要： One of adjacent rocker arms in a valve operating system of an engine is provided with first and second support walls. A roller is disposed between the first and second support walls to come into rolling contact with cams. A cylindrical roller shaft, supporting the roller, is provided between the first and second support walls, so that a switchover pin of an associative-operation switchover means can be slidably fitted into the roller shaft in response to the movement thereof. The roller shaft is press-fitted into at least a second one of the first and second support walls, and a press-fit margin for the roller shaft press-fitted into the second support wall on the side of the other rocker arm is set smaller than a press-fit margin for the roller shaft press-fitted into the second support wall on the side of the roller.
摘要翻译： 在发动机的阀操作系统中的相邻摇臂中的一个设置有第一和第二支撑壁。 辊子设置在第一和第二支撑壁之间以与凸轮滚动接触。 支撑辊的圆柱滚子轴设置在第一和第二支撑壁之间，使得关联操作切换装置的切换销可以响应于其移动而可滑动地装配到滚子轴中。 辊轴被压配合到第一和第二支撑壁中的至少第二支撑壁中，并且压配合到另一个摇臂的侧面上的第二支撑壁中的辊轴的压入边缘被设定得更小 而不是压辊安装在辊轴侧的第二支撑壁上的压配合边缘。
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公开(公告)号：US06463899B2
公开(公告)日：2002-10-15
申请号：US09745991
申请日：2000-12-26
IPC分类号： F01L118
CPC分类号： F01L1/267 , F01L1/053 , F01L1/18 , F01L2103/01 , F01L2105/00 , F01L2105/02 , Y10T74/20882
摘要： In a valve operating system in an internal combustion engine, a swinging support section provided at a base end of a rocker arm is swingably carried on a rocker shaft mounted in a cylinder head. A plurality of valve abutments are provided at a tip end of the rocker arm and capable of being individually put into abutment against upper ends of a plurality of engine valves, and a cam abutment is provided on the rocker arm in an intermediate portion between the swinging support section and each of the valve abutments to come into contact with a valve operating cam. The swinging support section comprises a thinner cylindrical portion surrounding the rocker shaft, and thicker cylindrical portions which are formed at a thickness larger than that of the thinner cylindrical portion into a cylindrical shape to surround the rocker shaft and which are integrally and continuously provided at axially opposite ends of the thinner cylindrical portion, respectively. Thus, it is possible to enhance the durability of the rocker arm, while avoiding an increase in weight of the rocker arm.
摘要翻译： 在内燃机的阀操作系统中，设置在摇臂的基端的摆动支撑部可摆动地承载在安装在气缸盖中的摇臂上。 在摇臂的前端部设有多个阀抵接部，能够分别与多个发动机气门的上端抵接，在摇臂上设置有摆动的中间部， 支撑部分和每个阀基座与阀操作凸轮接触。 摆动支撑部分包括围绕摇杆轴的较薄的圆柱形部分和较厚的圆柱形部分，该圆柱形部分的厚度大于较薄圆柱形部分的厚度，成圆柱形，以围绕摇杆轴，并且在轴向上一体地连续地设置 较薄的圆柱形部分的相对端。 因此，可以在避免摇臂的重量的增加的同时提高摇臂的耐久性。
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公开(公告)号：US06622686B2
公开(公告)日：2003-09-23
申请号：US09779630
申请日：2001-02-09
申请人： Takashi Komatsuda , Kaoru Aoki , Shinichi Takahashi , Takuya Takagi , Hiromu Nakamura , Tsutomu Yamasaki
发明人： Takashi Komatsuda , Kaoru Aoki , Shinichi Takahashi , Takuya Takagi , Hiromu Nakamura , Tsutomu Yamasaki
IPC分类号： F02F124
CPC分类号： F02F1/4214 , F02F2001/245
摘要： In a cylinder head 1 of an internal combustion engine, communicating passageways 17, 18, 17′, 18′ for coolant are provided between combustion chambers 3 and pass-through holes 21 to 28 at positions which overlap straight lines L1, L2 connecting centers C2, C3 of the exhaust port openings 6a, 7a with centers C5 to C8 of the pass-through holes 25 to 28 and straight lines L3, L4 connecting centers C9, C10 of the intake port openings 4a, 5a with centers C11 to c14 of the pass-through holes 21 to 24 when a mating surface 2 of the cylinder head 1 with the cylinder block is viewed from the bottom. When peripheries of the exhaust port openings 6a, 7a and intake port openings 4a, 5a thermally expand, the suppression of thermal expansion by the bolts at fastening portions is alleviated by the communicating passageways 17, 18, 17′, 18′.
摘要翻译： 在内燃机的气缸盖1中，用于冷却剂的连通通道17,18,17'，18'设置在燃烧室3和穿通孔21至28之间的重叠直线L1，L2连接中心C2 具有通孔25至28的中心C5至C8的排气口开口6a，7a和进气口开口4a，5a的连接中心C9，C10的直线L3，L4与中心C11至c14的排气口开口6a，7a的C3 当从底部观察气缸盖1的与气缸体的配合表面2时的通孔21至24。 当排气口开口6a，7a和进气口开口4a，5a的周边热膨胀时，通过连通通道17,18,17'，18'减轻了紧固部分处的螺栓对热膨胀的抑制。
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8.发明授权Laser beam scanning device and apparatus provided with a laser beam scanning device 失效具有激光束扫描装置的激光束扫描装置和装置
公开(公告)号：US5901256A
公开(公告)日：1999-05-04
申请号：US568758
申请日：1995-12-07
申请人： Hiromu Nakamura , Satoru Ono
发明人： Hiromu Nakamura , Satoru Ono
CPC分类号： G02B26/126 , G06K7/10702
摘要： A laser beam scanning device which has an improved cylindrical mirror in an optical path from a laser source unit to a polygonal mirror. The cylindrical mirror has a finite radius of curvature only in a sub scanning direction, and the radius of curvature in the sub scanning direction varies in a main scanning direction such that the closer to a laser beam incident side, the larger and the closer to a laser beam emergent side, the smaller. The laser beam reflected by the cylindrical mirror is converged on a line substantially parallel to each reflective facet of the polygonal mirror.
摘要翻译： 一种激光束扫描装置，其具有从激光源单元到多面镜的光路中的改进的圆柱形反射镜。 圆柱形反射镜仅在副扫描方向上具有有限的曲率半径，并且副扫描方向上的曲率半径在主扫描方向上变化，使得更靠近激光束入射侧，越大越接近 激光束紧急侧，较小。 由圆柱形反射镜反射的激光束会聚在基本上平行于多面镜的每个反射小面的线上。
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公开(公告)号：US5583559A
公开(公告)日：1996-12-10
申请号：US187341
申请日：1994-01-25
申请人： Hiromu Nakamura , Akiyoshi Hamada
发明人： Hiromu Nakamura , Akiyoshi Hamada
CPC分类号： B41J2/471 , G02B26/126
摘要： A laser beam optical scanning system having a laser diode, a collimator lens, a cylindrical lens, a polygonal mirror and an f.theta. mirror. The f.theta. mirror has a free toric surface whose curvature in the main scanning direction varies in accordance with field angle. The variation of the curvature of the free toric surface is set in accordance with the position of the f.theta. mirror in the optical path, and this appropriate setting of the variation of the curvature enables the f.theta. mirror to correct both distortion and curvature of field in the main scanning direction.
摘要翻译： 具有激光二极管，准直透镜，柱面透镜，多面镜和fθ镜的激光束光学扫描系统。 fθ反射镜具有自由的复曲面，其主扫描方向的曲率根据场角而变化。 游离复曲面的曲率的变化根据光路中的θθ镜的位置来设定，并且曲率变化的这种适当的设定使得θθ镜能够校正场的变形和曲率 在主扫描方向。
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公开(公告)号：US5580325A
公开(公告)日：1996-12-03
申请号：US405250
申请日：1995-03-17
CPC分类号： F16H7/18 , F02B77/081 , F16H7/023 , F02B2075/027 , F16H2007/185
摘要： A structure for preventing a tooth skip in a toothed endless power transmitting belt. On an inner side of a tooth skip preventing member covering an outer surface of a toothed rotor is formed a tooth skip preventing piece bent at a right angle. The tooth skip preventing member is arranged substantially in parallel with the outer circumferential surface of the toothed endless power transmitting belt wound around a toothed driving pulley with a narrower space than a tooth height of the pulley. The tooth skip preventing member is fixed to a casing by a bolt penetrating a hole of the member. On a outer side at a central portion of the tooth skip preventing member is formed a harness holding piece bent at a right angle in the same direction as the tooth skip preventing piece.
摘要翻译： 用于防止齿形无端动力传递带中的齿跳跃的结构。 在覆盖有齿转子的外表面的齿跳过防止构件的内侧形成有直角弯曲的防止跳齿的片。 齿防止部件大致平行于与齿轮驱动皮带轮缠绕的齿形无端动力传动皮带的外周面平行，齿形驱动滑轮的空间比皮带轮的齿高更窄。 通过穿过构件的孔的螺栓将防止齿的构件固定在壳体上。 在防跳动构件的中心部分的外侧形成有沿与防止跳跳块相同的方向成直角弯曲的线束保持件。
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