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    Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combuston engine with such mechansim
    3.
    发明公开
    Mechanism for restraining fuel pressure pulsation and high pressure fuel supply pump of internal combuston engine with such mechansim 审中-公开
    机构，用于限制具有燃料压力脉动和高压燃料泵的这种机构的内燃机

    公开(公告)号：EP2803851A1

    公开(公告)日：2014-11-19

    申请号：EP14175110.7

    申请日：2009-04-23

    Applicant: Hitachi Ltd.

    Inventor： Usui, Satoshi ,  Tamura, Shingo ,  Miyazaki, Katsumi ,  Takahashi, Sunao ,  Suganami, Masayuki ,  Hashida, Minoru

    IPC: F02M59/44

    CPC classification number: F04B53/143 ,  F02M37/0041 ,  F02M55/04 ,  F02M59/442 ,  F02M59/48 ,  F04B9/042 ,  F04B11/0008 ,  F04B35/01

    Abstract: A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.

    Abstract translation: 一种用于降低压力脉动机构包括一对金属阻尼器通过切换到全周接合两个盘状的金属隔膜并形成气密密封的空间中的连接部内，与气体中的阻尼器的上述密封空间被密封形成的， 具有一对推压构件，其得到的位置处，在从所述连接部分的内径侧的按压力，以上述金属阻尼器的两个外表面，并且被单元化用一对按压构件的连接在它们夹着的状态下 金属阻尼器。

    High-pressure fuel supply pump
    4.
    发明公开
    High-pressure fuel supply pump 有权
    Hochdruckbrennstoffförderpumpe

    公开(公告)号：EP2336545A1

    公开(公告)日：2011-06-22

    申请号：EP10185169.9

    申请日：2007-08-09

    Applicant: Hitachi Ltd.

    Inventor： Usui, Satoshi ,  Yamada, Hiroyuki ,  Tokuo, Kenichiro ,  Hashida, Minoru ,  Yamamura, Takefumi ,  Himoto, Tohru ,  Takahashi, Sunao

    IPC: F02M55/04 ,  F02M59/46

    CPC classification number: F02M63/0245 ,  F02M55/04 ,  F02M59/366 ,  F02M59/367 ,  F02M59/462 ,  F02M63/005 ,  F02M63/0054 ,  F02M63/0056

    Abstract: A high-pressure fuel supply pump having a fuel relief path for connecting a high-pressure fuel path downstream of a discharge valve (8) for discharging fuel pressurized in a pressurizing chamber (11) to a low-pressure fuel path upstream of an inlet valve (30) or the pressurizing chamber, a check valve being provided in the fuel relief path as a relief valve for allowing the fuel to flow only to the low-pressure fuel path or the pressurizing chamber (11), wherein an energy attenuating mechanism is provided in a discharge path on a side facing the discharge valve (8) upstream of the relief valve in the fuel relief path so as to prevent an instantaneous pressure rise caused in the discharge path from propagating to the relief valve.

    Abstract translation: 一种高压燃料供给泵，其具有用于将用于将在加压室（11）中被加压的燃料排出到排出阀（8）下游的高压燃料路径的燃料排出路径， 阀（30）或加压室，止回阀设置在燃料排放路径中作为用于允许燃料仅流到低压燃料路径或加压室（11）的安全阀，其中能量衰减机构 设置在燃料排出路径中的安全阀的上游侧的面向排出阀（8）的一侧的排出路径中，以防止在排出路径中引起的瞬时压力升高而向安全阀传播。

    High pressure fuel supply pump of internal combustion engine with a mechanism for restraining fuel pressure pulsation
    7.
    发明公开
    High pressure fuel supply pump of internal combustion engine with a mechanism for restraining fuel pressure pulsation 审中-公开
    Hochdruck-Kraftstoffpumpe mit einem Mechanismus zurVerzögerungder Kraftstoffdruckpulsation

    公开(公告)号：EP2466114A1

    公开(公告)日：2012-06-20

    申请号：EP12159845.2

    申请日：2009-04-23

    Applicant: Hitachi Ltd.

    Inventor： Usui, Satoshi ,  Tamura, Shingo ,  Miyazaki, Katsumi ,  Takahashi, Sunao ,  Suganami, Masayuki ,  Hashida, Minoru

    IPC: F02M55/04 ,  F02M59/48

    CPC classification number: F04B53/143 ,  F02M37/0041 ,  F02M55/04 ,  F02M59/442 ,  F02M59/48 ,  F04B9/042 ,  F04B11/0008 ,  F04B35/01

    Abstract: A mechanism for reducing pressure pulsation includes a pair of metal dampers formed by joining two disk-shaped metal diaphragms over an entire circumference and forming a hermetically sealed space inside a joined portion, with gas being sealed in the aforementioned hermetically sealed space of the damper, has a pair of pressing members which give pressing forces to both outer surfaces of the aforementioned metal dampers at a position at an inner diameter side from the joined portion, and is unitized with the pair of pressing members being connected in a state in which they sandwich the metal damper.

    Abstract translation: 用于减小压力脉动的机构包括一对金属阻尼器，其通过在整个圆周上连接两个盘形金属隔膜而形成，并且在接合部分内形成密封空间，气体密封在上述气密密封空间中， 具有一对按压构件，其在与接合部分的内径侧的位置处对上述金属阻尼器的两个外表面施加按压力，并且将该一对按压构件与它们夹在一起的状态连接 金属阻尼器。

    High pressure fuel pump
    8.
    发明公开
    High pressure fuel pump 审中-公开
    Kraftstoffhochdruckpumpe

    公开(公告)号：EP1063428A2

    公开(公告)日：2000-12-27

    申请号：EP00104550.9

    申请日：2000-03-13

    Applicant: Hitachi, Ltd.

    Inventor： Ono, Yoshinobu ,  Takahashi, Yukio ,  Machimura, Hideki ,  Hashida, Minoru ,  Kotaki, Masayoshi ,  Yamamura, Takefumi

    IPC: F04B1/20

    CPC classification number: F04B1/2021 ,  F04B1/122 ,  F04B1/14 ,  F04B53/164

    Abstract: The present invention provides an axial plunger pump which does not need bellows by restricting fuel to a cylinder bore (13) configuring a pump portion and by lubricating the other portion with oil. The high pressure fuel pump comprises a plunger (11) reciprocating according to a shaking movement of a swash plate (9), a cylinder block (12) forming a pump chamber (14) together with the plunger (11), and a sealing member provided between the plunger and a cylinder bore for sealing oil leaked from the pump chamber (14) to a chamber surrounding the pump chamber (14), wherein oil in the oil chamber is supplied from the outside of the high pressure fuel pump.

    Abstract translation: 本发明提供一种轴向柱塞泵，其不需要通过将燃料限制到构成泵部分的气缸孔（13）并且通过用油润滑另一部分而不需要波纹管。 高压燃料泵包括根据斜板（9）的振动运动往复运动的柱塞（11），与柱塞（11）一起形成泵室的气缸体（12）以及密封构件 设置在所述柱塞和用于将从所述泵室（14）泄漏的油密封到围绕所述泵室（14）的室的缸孔之间，其中所述油室中的油从所述高压燃料泵的外部供应。

    High-pressure fuel pump
    10.
    发明公开
    High-pressure fuel pump 有权
    Hochdruckbrennstoffpumpe

    公开(公告)号：EP1881191A2

    公开(公告)日：2008-01-23

    申请号：EP07014306.0

    申请日：2007-07-20

    Applicant: Hitachi, Ltd.

    Inventor： Hashida, Minoru ,  Yamada, Hiroyuki ,  Shimada, Junichi ,  Onose, Toru ,  Usui, Satoshi ,  Abe, Masami ,  Himoto, Tohru

    IPC: F02M59/10 ,  F02M59/26 ,  F02M63/02 ,  F04B1/04

    CPC classification number: F02M63/0225 ,  F02M59/102 ,  F02M59/265 ,  F02M63/0001 ,  F02M2200/02 ,  F04B1/0421

    Abstract: At the present invention a high-pressure fuel pump (100) is comprises of: a plunger (2) which slidably fits to a cylinder (6) and reciprocates for pressurizing and discharging a fuel taken in a pressurizing chamber (11); an inlet valve device (3) for taking in a fuel into the pressurizing chamber (11); an outlet valve device (8) for discharging the pressurized fuel from the pressurizing chamber (11); and a communicating pass (6A,6B) which comprises a hole or a groove formed in the cylinder (6), and communicates between a pressurized fuel area (11) and a gap between the cylinder (6) and the plunger (2).

    Abstract translation: 在本发明中，高压燃料泵（100）包括：可滑动地配合到气缸（6）并且往复运动的柱塞（2），用于加压和排出在加压室（11）中所采取的燃料; 用于将燃料引入加压室（11）中的入口阀装置（3）; 用于从加压室（11）排出加压燃料的出口阀装置（8）; 以及连通通道（6A，6B），其包括形成在气缸（6）中的孔或槽，并且在加压燃料区域（11）与气缸（6）和柱塞（2）之间的间隙之间连通。

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