Rotary shaft lubricating structure
    2.
    发明授权
    Rotary shaft lubricating structure 失效
    旋转轴润滑结构

    公开(公告)号:US5788381A

    公开(公告)日:1998-08-04

    申请号:US795276

    申请日:1997-02-04

    摘要: An engine has two balancer shafts supported on two bearing bushings which are made of the same material and mounted to a balancer holder. Lubricating oil passages for supplying oil to the bearing bushings are defined offset upwards from the centers O of the bearing bushings and by a distance .delta.. Each of the bearing bushings has two oil bores having a center angle .theta. other than 180.degree.. The two oil bores in the bearing bushing of one balancer shaft communicate with the lubricating oil passage, and one of the oil bores in the bearing bushing of another balancer shaft communicates with the lubricating oil passage, while the other oil bore of that another balancer shaft is closed to keep out of the lubricating oil passage. Thus, downstream ends of the lubricating oil passages for supplying the oil to the bearing bushings of the plurality of rotary shafts can be closed without use of a special closing member such as a blind plug.

    摘要翻译: 发动机具有两个平衡轴,该平衡轴支撑在由相同材料制成并安装到平衡器支架上的两个轴承衬套上。 用于向轴承衬套供油的润滑油通道被限定为从轴承衬套的中心O向上偏移并且距离增量。 每个轴承衬套具有两个中心角度θ为180°的油孔。 一个平衡轴的轴承衬套中的两个油孔与润滑油通道连通,另一个平衡轴的轴承衬套中的一个油孔与润滑油通道连通,另一个平衡轴的另一个油孔 关闭以防止润滑油通道。 因此,用于将油供给到多个旋转轴的轴承衬套的润滑油通道的下游端可以不使用诸如盲塞等特殊的关闭构件而关闭。

    Tensioner for an endless transmitting member
    3.
    发明授权
    Tensioner for an endless transmitting member 失效
    张紧器为无尽的传递构件

    公开(公告)号:US5913742A

    公开(公告)日:1999-06-22

    申请号:US911279

    申请日:1997-08-14

    IPC分类号: F02B67/06 F16H7/08

    摘要: A tensioner for an endless transmitting member is provided to reliably prevent the loosening of an endless chain, while preventing the occurrence of an incorrect meshing of the endless chain with sprockets. A plunger holder is biased in an advancing direction by the action of a first spring supported in a housing, and a plunger, carried in the plunger holder, is biased in an advancing direction by the action of a second spring having a spring constant larger than that of the first spring. Only the movement of the plunger holder in the advancing direction is permitted by a ratchet mechanism mounted between the plunger holder and the housing. During operation of the engine, the advancing movement of the plunger holder is inhibited by the hydraulic pressure transmitted to a hydraulic pressure chamber, and the plunger is advanced and retracted in accordance with a variation in tension of the endless chain. When the engine is stopped, the ratchet mechanism is operated in accordance with the elongation of the endless chain due to wearing to advance the plunger holder one pitch at a time along with the plunger.

    摘要翻译: 提供用于无端传递构件的张紧器,以可靠地防止环形链条的松动,同时防止环链与链轮的不正确啮合的发生。 柱塞保持器通过支撑在壳体中的第一弹簧的作用沿前进方向偏置,并且承载在柱塞保持器中的柱塞通过弹簧常数大于第二弹簧的第二弹簧的作用沿前进方向偏置 第一个春天。 通过安装在柱塞保持器和壳体之间的棘轮机构,允许柱塞保持器在前进方向上的移动。 在发动机工作期间,通过传递到液压室的液压阻止柱塞保持器的前进运动,并且柱塞根据环形链的张力变化而前进和缩回。 当发动机停止时,棘轮机构根据环形链的伸长而由于磨损而一起操作,以使柱塞保持架一次与柱塞一起推进。

    Valve operating device for internal combustion engine
    4.
    发明授权
    Valve operating device for internal combustion engine 失效
    内燃机用阀门操作装置

    公开(公告)号:US5456225A

    公开(公告)日:1995-10-10

    申请号:US292557

    申请日:1994-08-18

    IPC分类号: F01L1/26 F01L13/00

    CPC分类号: F01L1/267 F02B2275/18

    摘要: A valve operating device for use in an internal combustion engine for varying operating characteristics of a pair of engine valves (20) in multi-stages depending upon operating conditions of the engine. A cam shaft (31) is provided with a high-speed cam (32), a pair of medium-speed cams disposed on opposite sides of the high-speed cam (32), and a pair of low-speed cams (34) disposed between the medium-speed cams (33) and the high-speed cam (32). A rocker shaft (35) is provided with a first free rocker arm (36) in sliding contact with the high-speed cam (32), a pair of driving rocker arms (37) operatively connected to the pair of engine valves (20), respectively, and in sliding contact with the low-speed cams (34), and a pair of second free rocker arms (38) disposed with the driving rocker arms (37) interposed between the second free rocker arms (38) and the first free rocker arm (36) to be in sliding contact with the medium-speed cams (33). First and second connection switching means (39, 40) are provided and separately switchable between states for selectively connecting the various rocker arms for operating the driving rocker arms (37) and engine valves (20) in low-speed, medium-speed and high-speed operating ranges of the engine.

    摘要翻译: 一种用于内燃机的阀操作装置,用于根据发动机的操作条件多级地改变一对发动机气门(20)的工作特性。 凸轮轴(31)设置有高速凸轮(32),设置在高速凸轮(32)的相对侧上的一对中速凸轮和一对低速凸轮(34), 设置在中速凸轮(33)和高速凸轮(32)之间。 摇臂轴(35)设置有与高速凸轮(32)滑动接触的第一自由摇臂(36),与所述一对发动机气门(20)可操作地连接的一对驱动摇臂(37) 和与低速凸轮(34)滑动接触的一对第二自由摇臂(38),其中驱动摇臂(37)设置在第二自由摇臂(38)和第一自由摇臂 自由摇臂(36)与中速凸轮(33)滑动接触。 提供第一和第二连接切换装置(39,40),并且可以在状态之间单独地切换,以选择性地连接用于以低速,中速和高速操作驱动摇臂(37)和发动机气门(20)的各种摇臂 - 发动机的速度工作范围。

    Iron-based sintered alloy material for valve seat
    7.
    发明授权
    Iron-based sintered alloy material for valve seat 失效
    用于阀座的铁基烧结合金材料

    公开(公告)号:US07273508B2

    公开(公告)日:2007-09-25

    申请号:US11070668

    申请日:2005-03-03

    IPC分类号: C22C33/02

    摘要: An iron-based sintered alloy material for a valve seat having improved wear resistance and reduced opposite aggressibility to a mating valve. The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base matrix phase, the first and the second hard particles accounting for 25% to 55% by area in total. The first hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 μm and a hardness of at least 500HV0.1 and less than 800HV0.1. The second hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 μm and a hardness of at least 800HV0.1 and less than 1100HV0.1. Solid lubricant particles may also be dispersed in the base matrix phase.

    摘要翻译: 一种用于阀座的铁基烧结合金材料,其具有改进的耐磨性并且降低了与配合阀的相反的侵蚀性。 铁基烧结合金材料含有第一硬质粒子的10〜20%的面积和分散在基体相的第二硬质粒子的面积的15〜35%,第一和第二硬质粒子占25%〜 共计55%。 第一硬质颗粒由钴基金属间化合物组成,其尺寸为10至150μm,硬度至少为500HV0.1且小于800HV0.1。 第二硬颗粒由钴基金属间化合物组成,其尺寸为10至150μm,硬度至少为800HV0.1且小于1100HV0.1。 固体润滑剂颗粒也可以分散在基础基质相中。

    Iron-based sintered alloy material for valve seat
    8.
    发明申请
    Iron-based sintered alloy material for valve seat 失效
    用于阀座的铁基烧结合金材料

    公开(公告)号:US20050193861A1

    公开(公告)日:2005-09-08

    申请号:US11070668

    申请日:2005-03-03

    摘要: An iron-based sintered alloy material for a valve seat having improved wear resistance and reduced opposite aggressibility to a mating valve. The iron-based sintered alloy material contains 10% to 20% by area of first hard particles and 15% to 35% by area of second hard particles dispersed in a base matrix phase, the first and the second hard particles accounting for 25% to 55% by area in total. The first hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 μm and a hardness of at least 500HV0.1 and less than 800HV0.1. The second hard particles are composed of a cobalt-based intermetallic compound and have a size of 10 to 150 μm and a hardness of at least 800HV0.1 and less than 1100HV0.1. Solid lubricant particles may also be dispersed in the base matrix phase.

    摘要翻译: 一种用于阀座的铁基烧结合金材料,其具有改进的耐磨性并且降低了与配合阀的相反的侵蚀性。 铁基烧结合金材料含有第一硬质粒子的10〜20%的面积和分散在基体相的第二硬质粒子的面积的15〜35%,第一和第二硬质粒子占25%〜 共计55%。 第一硬质颗粒由钴基金属间化合物组成,其尺寸为10至150μm,硬度至少为500HV0.1且小于800HV0.1。 第二硬颗粒由钴基金属间化合物组成,其尺寸为10至150μm,硬度至少为800HV0.1且小于1100HV0.1。 固体润滑剂颗粒也可以分散在基础基质相中。