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    • 1. 发明授权
    • Engine unit
    • 发动机单元
    • US5024189A
    • 1991-06-18
    • US471945
    • 1990-01-29
    • Sadakatsu UshioNoboru NakamuraHirofumi HigashiMasataka IwataFumiyasu Niwa
    • Sadakatsu UshioNoboru NakamuraHirofumi HigashiMasataka IwataFumiyasu Niwa
    • F02F7/00F16C9/02
    • F02F7/0053F02F7/0012F05C2201/021F05C2201/0436F05C2201/0439
    • An engine unit includes a cylinder block of a short-skirt type which has a plurality of first partition walls and a plurality of crank journals formed on the partition walls and rotatably receiving the crankshaft. Bearing caps are fitted to the crank journals and rotatably hold the crankshaft in cooperation with the crank journals. A lower case is fixed to the cylinder block and covers the crankshaft. The lower case includes a pair of flanges abutting against the lower edges of the skirt portions, a semi-cylindrical bottom wall, and a plurality of second partition walls formed on the bottom wall to oppose the first partition walls. Each bearing cap is clamped between the first and second partition walls. The lower case is fixed to the cylinder block by means of first bolts screwed into the skirt portions through the flanges, and second bolts screwed into the crank journals through the second partition walls and bearing caps.
    • 发动机单元包括短裙型的气缸体,其具有多个第一分隔壁和形成在分隔壁上并可旋转地接收曲轴的多个曲柄轴颈。 轴承盖安装到曲柄轴颈上并与曲柄轴颈配合可旋转地保持曲轴。 下壳固定在气缸体上并覆盖曲轴。 下壳体包括抵靠裙部的下边缘的一对凸缘,半圆柱形底壁和形成在底壁上以与第一分隔壁相对的多个第二分隔壁。 每个轴承盖夹在第一和第二分隔壁之间。 下壳体通过穿过凸缘螺纹拧入裙部的第一螺栓固定到气缸体上,第二螺栓通过第二分隔壁和轴承盖螺钉拧入曲柄轴颈。
    • 6. 发明授权
    • Ferrule for connecting optical fibers, method of producing the same and optical fiber connector using the same
    • 用于连接光纤的套圈,其制造方法和使用其的光纤连接器
    • US06533469B1
    • 2003-03-18
    • US09637455
    • 2000-08-11
    • Noboru NakamuraMasayuki Yamahiro
    • Noboru NakamuraMasayuki Yamahiro
    • G02B636
    • G02B6/3837G02B6/3821G02B6/3825G02B6/3833G02B6/3861G02B6/3865
    • The ferrule of the prior art requires an assembling process, high accuracy machining of the fitting portion, machining of the insert to achieve concentricity, machining of the cone and machining of the outer diameter with a high accuracy. This has been making a factor that increases the production cost of the ferrule which is required to have lower price. The present invention provides an ferrule comprising an insert of substantially cylindrical shape that has a fine hole for housing an optical fiber in the axial direction, and an ferrule body made of a resin for accepting the insert fitted therein, characterized in that: the ferrule body has a through hole made in the axial direction thereof, and the through hole communicates with the fine hole of the insert via a tapered hole, with concentricity between the fine hole of the insert and the periphery of the ferrule body being within 10 &mgr;m.
    • 现有技术的套管需要组装过程,装配部分的高精度加工,插入件的加工以实现同心度,锥体的加工和高精度的外径加工。 这已经成为增加套件的生产成本的因素,这需要具有较低的价格。 本发明提供一种套筒,其包括具有用于沿轴向容纳光纤的细孔的大致圆筒形状的插入件,以及由用于接纳嵌入其中的插入件的树脂制成的套圈主体,其特征在于,所述套圈体 具有沿其轴向形成的通孔,并且通孔经由锥形孔与插入件的细孔连通,插入件的细孔与套圈本体的周边之间的同心度在10um以内。
    • 7. 发明授权
    • Valve system for automobile engine
    • 汽车发动机阀门系统
    • US5099806A
    • 1992-03-31
    • US725606
    • 1991-07-03
    • Shinichi MurataNoboru NakamuraMichiyasu Yoshida
    • Shinichi MurataNoboru NakamuraMichiyasu Yoshida
    • F01L1/26F01L13/00F02B1/04
    • F01L1/267F01L13/0005F02B1/04F02B2275/18
    • A valve system for an automobile engine opens and closes intake and exhaust valves by reciprocative force of a crankshaft. Specifically, the valve system controls timing for operating and stopping these valves, and the amount of cam lift. The valve system comprises a camshaft, a rocker shaft in parallel to the camshaft, a main rocker arm mounted on the rocker shaft, a sub-rocker arm pivotally supported on the rocker shaft, engaging means for engaging and disengaging the rocker shaft with and from the sub-rocker arm, and driving means for driving the engaging means. The engaging means includes an opening on a rotating surface of the sub-rocker arm, a plunger located in the rocker shaft and an oil chamber located at an upper or lower end of the plunger. The driving means includes an oil gallery in the rocker shaft and an oil pressuring member.
    • 用于汽车发动机的阀系统通过曲轴的往复力来打开和关闭进气和排气阀。 具体来说,阀系统控制操作和停止这些阀的时间以及凸轮升程量。 阀系统包括凸轮轴,平行于凸轮轴的摇杆轴,安装在摇臂上的主摇臂,枢转地支撑在摇臂轴上的副摇臂,用于使摇臂与...相接合和分离的接合装置 副摇臂和用于驱动接合装置的驱动装置。 接合装置包括在副摇臂的旋转表面上的开口,位于摇臂轴中的柱塞和位于柱塞的上端或下端的油室。 驱动装置包括在摇杆轴中的油道和加压构件。
    • 8. 发明授权
    • Four-wheel drive vehicle
    • 四轮驱动车
    • US5005663A
    • 1991-04-09
    • US263212
    • 1988-10-27
    • Kazuo NiideHideki YamadaHaruki HigashiNoboru Nakamura
    • Kazuo NiideHideki YamadaHaruki HigashiNoboru Nakamura
    • B60K17/346B60K23/06B60K23/08F16H48/295F16H48/30F16H48/38
    • B60K23/0808B60K17/3462B60K23/06
    • A vehicle equipped with four-wheel drive has a transfer case including a center-differential which delivers driving power to both front and rear axle assemblies when needed and is shiftable between a two-wheel and a four-wheel drive mode of operation and between a differential-locked and a differential-unlocked drive mode of operation. A free wheeling drive mechanism with a clutch member is incorporated in an output shaft of an axle differential in association with wheels non-driven in the two-wheel drive mode of operation and is adapted to disconnect when the vehicle is in the two-wheel drive mode of operation. A controller causes a forced drive mode shift of the center-differential from the four-wheel differential-underlined drive mode of operation either to the four-wheel differential-locked or to the two-wheel drive mode of operation when the disconnection of the free-wheeling drive mechanism is detected while the vehicle is in the four-wheel differential-unlocked drive mode of operation.
    • 装备有四轮驱动的车辆具有传送箱,其包括中心差速器,其在需要时向前轴组件和后轴组件提供驱动力,并且可在两轮和四轮驱动操作模式之间以及 差分锁定和差分解锁驱动操作模式。 与轮式差速器的输出轴相结合,具有离合器构件的自由轮驱动机构与在两轮驱动操作模式下未被驱动的车轮相结合,并且适于当车辆处于两轮驱动时断开 操作模式。 控制器将中心差速器的强制驱动模式从四轮差速下划线驱动操作模式移动到四轮差速器锁定或两轮驱动运行模式,当断开自由 当车辆处于四轮差速器解锁驱动操作模式时,检测到 - 驱动机构。