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19 条记录 (耗时 0.016 秒)

    Fluid pump and high-pressure fuel feed pump
    1.
    发明公开
    Fluid pump and high-pressure fuel feed pump 有权
    流体泵和高压燃油泵

    公开(公告)号：EP1801411A8

    公开(公告)日：2007-10-03

    申请号：EP07007833.2

    申请日：2001-01-05

    申请人： Hitachi, Ltd. ,  Hitachi Car Engineering Co., Ltd.

    发明人： Yamada, Hiroyuki ,  Saito, Atsuji ,  Kotaki, Masayoshi ,  Odakura, Hiroshi ,  Abe, Masami

    IPC分类号： F02M59/44 ,  F02M59/48

    CPC分类号： F02M59/102 ,  F02M59/366 ,  F02M59/44 ,  F02M59/442 ,  F02M59/445 ,  F02M59/462 ,  F02M59/48 ,  F02M59/485 ,  F02M63/0001 ,  F02M2200/04 ,  F04B49/243 ,  F04B53/04 ,  F04B53/168 ,  F04B53/22

    摘要： The invention relates to a fluid pump, wherein a cylinder 20 supporting a plunger 2 and a pump housing 1 are formed with dissimilar metals and a pressing mechanism to press the cylinder 20 and the pump housing 1 relatively to each other is provided so that a pressurizing chamber 12 is sealed through a pressing surface between the pump housing 1 and the cylinder 20, whereby the number of seal points can be reduced and a reduction in reliability can be eliminated while realizing a reduction in weight of the pump housing 1 and a reduction in cost due to increase in cutting capability using a soft member such as aluminium alloy for the pump housing 1.

    摘要翻译： 流体泵技术领域本发明涉及一种流体泵，其中支撑柱塞2和泵壳体1的缸体20由不同种类的金属形成，并且设置有用于相对彼此挤压缸体20和泵壳体1的加压机构， 通过泵壳体1与缸体20之间的按压面将腔室12密封，由此能够减少密封点的数量，并且能够实现可靠性的降低，同时实现泵壳体1的轻量化和 由于使用诸如铝合金之类的软质构件来增加泵壳体1的切割能力而导致成本增加。

    Fuel feed system
    5.
    发明公开
    Fuel feed system 有权
    Brennstoffversorgungssystem

    公开(公告)号：EP2351926A1

    公开(公告)日：2011-08-03

    申请号：EP11160962.4

    申请日：2002-10-18

    申请人： Hitachi, Ltd. ,  Hitachi Car Engineering Co., Ltd.

    发明人： Usui, Satoshi ,  Odakura, Hiroshi ,  Onose, Toru ,  Saito, Atsuji ,  Abe, Masami ,  Yamada, Hiroyuki

    IPC分类号： F02M37/00

    CPC分类号： F02M37/0041 ,  F02D33/003 ,  F02M37/0047 ,  F02M55/04 ,  F02M59/366 ,  F02M59/44 ,  F02M63/0001 ,  F02M63/0225 ,  F02M2200/04 ,  F02M2200/24 ,  F02M2200/247 ,  F02M2200/315 ,  F04B11/0016 ,  F04B49/243 ,  F04B2205/01 ,  F04B2205/02 ,  F04B2205/05

    摘要： The invention relates to a fuel feed system capable of feeding a fuel to fuel injection valves at a fuel pressure with improved stability. A fuel feed system for an internal combustion engine including a fuel tank (50) and a low-pressure pump (51) for feeding the fuel in the, fuel tank to fuel injection valves, is provided with a diaphragm type damper (80) having a wave-shape cross section at a position in contact with the fuel. Also, in a high-pressure fuel feed pump including a pressurizing chamber (12) for pressurizing the fuel, a plunger (2) for pumping the fuel within the pressurizing chamber (12), an intake valve (5) provided at a fuel inlet (10) of the pressurizing chamber (12), a discharge valve (6) provided at a fuel outlet (11) of the pressurizing chamber (12), and a low-pressure chamber provided in an upstream of the intake valve (5), a mechanism for reducing fuel pressure pulsation is disposed in a space of the low-pressure chamber provided in the upstream of the intake valve (5), and a fuel pressure sensor (56; 90) for measuring the fuel pressure is mounted near the mechanism for reducing fuel pressure pulsation.

    摘要翻译： 本发明涉及一种燃料供给系统，其能够以具有改进的稳定性的燃料压力将燃料供给燃料喷射阀。 一种用于内燃机的燃料供给系统，包括用于将燃料箱中的燃料供给燃料喷射阀的燃料箱（50）和低压泵（51），其具有膜片式阻尼器（80），其具有 在与燃料接触的位置处的波形截面。 此外，在包括用于对燃料加压的加压室（12）的高压燃料供给泵中，用于对加压室（12）内的燃料进行泵送的柱塞（2），设置在燃料入口处的进气阀（5） （10），设置在加压室（12）的燃料出口（11）处的排出阀（6）和设置在进气阀（5）的上游的低压室， 在设置在进气门（5）的上游侧的低压室的空间内配置有用于降低燃料压力脉动的机构，在燃料压力传感器（56; 90）附近安装有用于测量燃料压力的燃料压力传感器 降低燃油压力脉动的机理。

    High pressure fuel supply pump for internal combustion engine
    6.
    发明公开
    High pressure fuel supply pump for internal combustion engine 有权
    内燃机用高压供油泵

    公开(公告)号：EP1950411A1

    公开(公告)日：2008-07-30

    申请号：EP08007645.8

    申请日：1999-06-18

    申请人： Hitachi, Ltd. ,  Hitachi Car Engineering Co., Ltd.

    发明人： Yamada, Hiroyuki ,  Tahara, Shigenori ,  Saito, Atsuji ,  Takahashi, Yukio ,  Abe, Masami

    IPC分类号： F02M59/46 ,  F02M59/36 ,  F02M63/02 ,  F04B49/24 ,  F02M59/44 ,  F04B53/16

    CPC分类号： F02M59/442 ,  F02M59/367 ,  F02M63/0017 ,  F02M63/0035 ,  F02M63/0225 ,  F04B1/0421 ,  F04B15/08 ,  F04B49/243 ,  F04B53/166

    摘要： The invention provides a high pressure fuel supply pump having a cylinder (108) being press-fitted into a pump body (100) at a press-fitted portion (108c),a plunger (102) for engaging slidably with a sliding hole (108a) which is formed at said cylinder (108), and an end of said plunger (102) is reciprocating in a pressurizing chamber (112) formed in said pump body (100), an intake valve mechanism (105, 105a) provided at a fuel inlet (220B) of said pressurizing chamber (112), a low pressure fuel passage (110) formed at said pump body (100) for introducing fuel into said fuel inlet (220B), an exhaust valve mechanism (106, 106a) provided at a fuel outlet (106b) of said pressurizing chamber (112), a seal member (120) arranged at an outer surface of a portion of said plunger (102) which is projecting from an end side of said cylinder (108) opposite to said pressurizing chamber (112) such that a fuel chamber (107) is formed by covering said end side of said cylinder (108) opposite to said pressurizing chamber (112) with said seal member (120).
    According to the invention, an end portion of said sliding hole (108a) of said cylinder and a lower end of an opening portion of said pump body (100) into which said cylinder is inserted are arranged to discharge into said fuel chamber (107).

    摘要翻译： 本发明提供一种高压燃料供给泵，该高压燃料供给泵具有在压入部（108c）压入泵主体（100）内的缸体（108），与滑动孔（108a）滑动接合的柱塞（102） ），所述柱塞（102）的一端在形成于所述泵体（100）内的加压室（112）内往复运动;进气阀机构（105,105a），设置于所述缸体 所述加压室（112）的燃料入口（220B），在所述泵体（100）上形成的用于将燃料引入所述燃料入口（220B）的低压燃料通道（110），设置有排气阀机构（106,106a） 在所述加压室（112）的燃料出口（106b）处设置有密封构件（120），所述密封构件（120）布置在所述柱塞（102）的从所述缸体（108）的端侧突出的部分的外表面处， 所述加压室（112）使得燃料室（107）通过覆盖所述气缸（108）的所述端部侧而与所述pr 与所述密封构件（120）共同确认室（112）。 根据本发明，所述气缸的所述滑动孔（108a）的端部和所述气缸插入其中的所述泵体（100）的开口部分的下端布置成排放到所述燃料室（107）中， 。