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    • 14. 发明授权
    • Distributor type fuel injection pump and power transmission device
    • 分配器型燃油喷射泵和动力传动装置
    • US6004106A
    • 1999-12-21
    • US19928
    • 1998-02-06
    • Hajime MachidaSatoshi KitamuraJun Matsubara
    • Hajime MachidaSatoshi KitamuraJun Matsubara
    • F02B67/06F02M39/02F02M41/14F02M59/44F04B49/00F02M41/00
    • F02M39/02F02M41/1405F02M59/44
    • In a distributor type fuel injection pump and a power transmission pump for transmitting power to the fuel injection pump, when a rotation system member of the injection pump is seized if anything should happen, only an injection pump is damaged to thereby greatly reduce damage to an engine. To this end, an annular groove is provided in a rotor to which power from the engine is transmitted, and the annular groove constitutes a frail portion of the rotor. The annular groove is positioned along the rotor so that all or most of the sliding portions of the rotor are located on a side of the groove opposite to a power supply side. When seizure occurs in the sliding portions of the rotor to prevent rotation, the rotor is twisted off at the annular groove by the power from the engine, so that rotation of a power supply side portion of the rotor is not prevented.
    • 在分配器型燃油喷射泵和用于向燃油喷射泵发送动力的动力传递泵的情况下,如果发生任何事情,则当注射泵的旋转系统构件被卡住时,只有注射泵被损坏,从而大大降低了对 发动机。 为此,在转子中设置有环形槽,来自发动机的动力被传递到该转子上,环形槽构成转子的较小部分。 环形槽沿着转子定位,使得转子的所有或大部分滑动部分位于与电源侧相对的槽的一侧。 当在转子的滑动部分发生卡塞以防止旋转时,转子通过来自发动机的动力在环形槽处扭转,从而不能防止转子的电源侧部分的旋转。
    • 15. 发明授权
    • Distributor-type fuel injection pump
    • 分配式燃油喷射泵
    • US5513965A
    • 1996-05-07
    • US445209
    • 1995-05-18
    • Hisashi NakamuraKenichi KuboJun Matsubara
    • Hisashi NakamuraKenichi KuboJun Matsubara
    • F02M41/14F02M39/00
    • F02M41/1411
    • In an innercam system fuel injection pump, plungers 15 are provided in the direction of the radius of a rotating member 10 which rotates in synchronization with the engine. A cam ring 18, which regulates the movement of the plungers, is fixed in a housing 2. A first sleeve 25 for regulating the timing with which a cutoff port 22 opens and a second sleeve 26 for regulating the timing with which an intake port 21 opens are externally fitted on the rotating member 10 in such a manner that they can slide freely. The first sleeve 25 and the second sleeve 26 interlock with each other in a specific relationship and a timer mechanism 40, which is directly linked to the second sleeve 26, controls the quantity of rotation of the second sleeve 26. With this, stable injection timing control can be achieved.
    • 在内胆系统燃料喷射泵中,柱塞15设置在与发动机同步旋转的旋转构件10的半径方向上。 调节柱塞运动的凸轮环18被固定在壳体2中。用于调节截止端口22打开的时机的第一套筒25和用于调节进气口21的定时的第二套筒26 开口以这样一种方式自由滑动地外装在旋转构件10上。 第一套筒25和第二套筒26以特定关系彼此互锁,并且直接连接到第二套筒26的定时器机构40控制第二套筒26的旋转量。由此,稳定的喷射正时 可以实现控制。
    • 17. 发明授权
    • Spill control apparatus for fuel injection system
    • 燃油喷射系统溢油控制装置
    • US5915360A
    • 1999-06-29
    • US52677
    • 1998-04-01
    • Hiroshi IshiwataJun MatsubaraKenichi KuboNoriyuki AbeKatsuhiro Shimokoshikimachi
    • Hiroshi IshiwataJun MatsubaraKenichi KuboNoriyuki AbeKatsuhiro Shimokoshikimachi
    • F02D1/02F02M41/12F02M41/14F02M37/04
    • F02M41/1411
    • In a spill control apparatus for a fuel injection system in which a sleeve is externally fitted to a rotor, and the position of the sleeve relative to the rotor is used to adjust the communication timing between a port on the rotor and a port on the sleeve, the port formed at the rotor is constituted of a first indented portion formed over a specific angle of rotation and a second indented portion formed to achieve specific spill characteristics. The second indented portion is formed continuous to the front end of the first indented portion in the direction of rotation and the contour of the second indented portion is continuous to the contour of the first indented portion which is constituted of oblique sides which extend toward the front relative to the direction of rotation. The length of the rotor port in the axial direction may be set smaller than the length of the port formed on the sleeve in the axial direction. Thus, it is possible to inhibit the entry of dust particles into the area between the rotor and the sleeve, reducing the incidence of scarring induced on the sliding contact surfaces of the rotor and sleeve, and preventing the seizure of the rotor and the sleeve.
    • 在用于燃料喷射系统的溢流控制装置中,其中套筒外部装配到转子上,并且套筒相对于转子的位置用于调节转子上的端口与套筒上的端口之间的连通定时 形成在转子上的端口由形成在特定旋转角度上的第一凹口部分和形成为实现特定溢出特性的第二凹入部分构成。 第二缩进部分在旋转方向上与第一凹入部分的前端连续地形成,并且第二凹入部分的轮廓与第一凹槽部分的轮廓连续,该第一缩进部分由朝向前方延伸的斜边构成 相对于旋转方向。 转子端口在轴向上的长度可以被设定为小于在轴向上形成在套筒上的端口的长度。 因此,可以抑制灰尘颗粒进入转子和套筒之间的区域,减少在转子和套筒的滑动接触表面上引起的疤痕的发生,并且防止转子和套筒的卡住。
    • 18. 发明授权
    • Distributor type fuel injection pump
    • 分配器型燃油喷射泵
    • US5642715A
    • 1997-07-01
    • US623955
    • 1996-03-29
    • Toru YamakawaKen'ichi KuboHiroshi IshiwataJun Matsubara
    • Toru YamakawaKen'ichi KuboHiroshi IshiwataJun Matsubara
    • F02M41/12F02M41/14F02M45/06F02M41/00
    • F02M41/1411F02M45/06
    • Inflow/outflow ports are provided in either one of a distribution member for distributing compressed fuel or a control sleeve which is externally fitted around the distribution member. Each of the ports includes a slit extending therefrom. At the other one of the distribution member and the control sleeve, an intake-cutoff hole that communicates sequentially with the inflow/outflow ports and a pilot port which communicates with the slits during part of the force feed period are provided. Since the fuel flows out through the slits during part of the force feed period, pilot injection can be more easily achieved prior to the main injection during low speed rotation and fuel is less likely to be diverted through the slits due to the constricting effect during high speed rotation so that only the main injection is performed. As a result, a distributor type fuel injection pump which achieves pilot injection in the idling range and in the no-load range, and cancels the pilot injection in the full-load range is provided.
    • 在分配压缩燃料的分配构件或分配构件外部安装的控制套筒中的任一个中设置有流入/流出端口。 每个端口包括从其延伸的狭缝。 在分配构件和控制套筒的另一个处,设置有与流入口和流出口顺序连通的进气切断孔,以及在部分加力期间与狭缝连通的先导口。 由于在部分力供给期间燃料通过狭缝流出,因此在低速旋转期间的主喷射之前可以更容易地实现先导喷射,并且由于高压期间的收缩效应,燃料不太可能转移通过狭缝 速度旋转,从而仅进行主喷射。 结果,提供一种分配式燃料喷射泵,其在怠速范围和空载范围内实现先导喷射,并且在满载范围内抵消先导喷射。
    • 19. 发明授权
    • Distributor-type fuel injection pump
    • 分配式燃油喷射泵
    • US5619971A
    • 1997-04-15
    • US490839
    • 1995-06-15
    • Kenichi KuboTsunayoshi MotoyoshiJun MatsubaraKazuaki NarikiyoKazuo Inoue
    • Kenichi KuboTsunayoshi MotoyoshiJun MatsubaraKazuaki NarikiyoKazuo Inoue
    • F02M41/14F02M53/00F02M37/04
    • F02M41/1405F02M41/1411
    • The inside of the housing is divided into a low pressure fuel area formed from a fuel inflow port through a feed pump 4 and a high pressure fuel area that can communicate with inflow/outflow ports for fuel. For instance, the low pressure fuel area may be formed as a path extending from the fuel intake port that communicates with the circumferential area of the front end of the rotor to the feed pump via the circumferential area of the rotor support member and a passage for inducing fuel from the high pressure fuel area to the circumferential area of the front end of the rotor may be formed between the rotor and its support member. The flow of fuel in the area where the rotor slides in contact with its support member is ensured, and oil film loss is prevented. With this, cooling and good lubrication in the rotor sliding contact area, where heat is likely to be generated, are promoted, to prevent seizure in the sliding contact area. Also, ports that open into the area where the rotor slides in contact with its support member and that communicates with the compression space may be provided in the rotor so that compressed fuel is supplied directly to the sliding contact area.
    • 壳体的内部被分为由燃料流入口形成的低压燃料区域,通过进料泵4和能与燃料的流入/出流端口连通的高压燃料区域。 例如,低压燃料区域可以形成为从燃料进入口延伸的路径,其通过转子支撑构件的周向区域与转子的前端的周边区域连通到进给泵,并且通道用于 可以在转子和其支撑构件之间形成从高压燃料区域引导到转子前端的圆周区域的燃料。 确保转子与其支撑部件滑动的区域中的燃料流动,并且防止油膜损失。 由此,促进了易于产生热量的转子滑动接触区域的冷却和良好的润滑,以防止滑动接触区域中的卡滞。 此外,可以在转子中设置开口到转子滑动与其支撑构件接触并与压缩空间连通的区域的端口,使得压缩的燃料被直接供应到滑动接触区域。