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    PUMP FOR SUPPLYING HIGH-PRESSURE FUEL
    1.
    发明授权
    PUMP FOR SUPPLYING HIGH-PRESSURE FUEL 有权

    公开(公告)号：EP2341237B1

    公开(公告)日：2018-07-18

    申请号：EP09823679.7

    申请日：2009-10-29

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： USUI Satoshi ,  TAMURA Shingo ,  MIYAZAKI Katsumi ,  YAMADA Hiroyuki

    IPC: F02M59/28 ,  F02M59/44 ,  F04B1/04 ,  F04B53/16

    CPC classification number: F02M59/44 ,  F02M39/02 ,  F02M59/102 ,  F02M59/366 ,  F02M2200/02 ,  F02M2200/85 ,  F04B1/0404 ,  F04B1/0408 ,  F04B1/0421 ,  F04B1/0439 ,  F04B53/168

    Abstract: It is an object of the present invention to accurately position a cylinder of a high-pressure fuel pump with respect to an attachment fitting hole provided in an engine block of an internal combustion engine in mounting the pump on the engine block. The high-pressure fuel pump of the invention is provided with a holder including: an outer cylindrical surface portion fitted to a high-pressure fuel pump attachment fitting hole installed on an engine block of the internal combustion engine; and a cylindrical fitting portion fitted to an outer circumference of the cylinder of the pump. The holder is configured such that the outer cylindrical surface portion and the cylindrical fitting portion are formed in a single piece resulting from machining one and the same member. Such a configuration can achieve the above-mentioned object. The central axis of an insertion hole of the piston plunger installed in the cylinder easily provides coaxiality with respect to the central axis of the attachment fitting hole installed in the engine block of the internal combustion engine. Biting and wear between the cylinder and the piston plunger, which are caused by the side force applied to the piston plunger by a drive mechanism, can be reduced.

    PUMP FOR SUPPLYING HIGH-PRESSURE FUEL
    3.
    发明公开
    PUMP FOR SUPPLYING HIGH-PRESSURE FUEL 有权
    HOCHDRUCKBRENNSTOFFPUMPE

    公开(公告)号：EP2341237A4

    公开(公告)日：2017-05-17

    申请号：EP09823679

    申请日：2009-10-29

    Applicant: HITACHI AUTOMOTIVE SYSTEMS LTD

    Inventor： USUI SATOSHI ,  TAMURA SHINGO ,  MIYAZAKI KATSUMI ,  YAMADA HIROYUKI

    IPC: F02M59/28 ,  F02M59/44 ,  F04B1/04 ,  F04B53/16

    CPC classification number: F02M59/44 ,  F02M39/02 ,  F02M59/102 ,  F02M59/366 ,  F02M2200/02 ,  F02M2200/85 ,  F04B1/0404 ,  F04B1/0408 ,  F04B1/0421 ,  F04B1/0439 ,  F04B53/168

    Abstract: It is an object of the present invention to accurately position a cylinder of a high-pressure fuel pump with respect to an attachment fitting hole provided in an engine block of an internal combustion engine in mounting the pump on the engine block. The high-pressure fuel pump of the invention is provided with a holder including: an outer cylindrical surface portion fitted to a high-pressure fuel pump attachment fitting hole installed on an engine block of the internal combustion engine; and a cylindrical fitting portion fitted to an outer circumference of the cylinder of the pump. The holder is configured such that the outer cylindrical surface portion and the cylindrical fitting portion are formed in a single piece resulting from machining one and the same member. Such a configuration can achieve the above-mentioned object. The central axis of an insertion hole of the piston plunger installed in the cylinder easily provides coaxiality with respect to the central axis of the attachment fitting hole installed in the engine block of the internal combustion engine. Biting and wear between the cylinder and the piston plunger, which are caused by the side force applied to the piston plunger by a drive mechanism, can be reduced.

    Abstract translation: 本发明的一个目的是在将泵安装在发动机缸体上时，将高压燃料泵的气缸相对于设置在内燃机的发动机缸体中的附件安装孔准确地定位。 本发明的高压燃料泵设置有支架，该支架包括：外圆柱表面部分，该外圆柱表面部分安装在安装在内燃机的发动机缸体上的高压燃料泵附件安装孔中; 以及装配到泵的气缸的外周的圆柱形装配部分。 保持器被构造成使得外圆柱表面部分和圆柱形配合部分通过机械加工一个和相同构件而形成为单件。 这样的配置可以实现上述目的。 安装在气缸中的活塞柱塞的插入孔的中心轴线容易地相对于安装在内燃机的发动机缸体中的附件安装孔的中心轴线提供同轴度。 可以减小由驱动机构施加到活塞柱塞的侧向力引起的缸体和活塞柱塞之间的咬合和磨损。

    FUEL INJECTION VALVE DAMPING INSULATOR
    4.
    发明公开
    FUEL INJECTION VALVE DAMPING INSULATOR 审中-公开
    DÄMPFUNGSISOLATORFÜREIN BRENNSTOFFEINSPRITZVENTIL

    公开(公告)号：EP2702262A1

    公开(公告)日：2014-03-05

    申请号：EP12721917.8

    申请日：2012-04-25

    Applicant: Toyota Jidosha Kabushiki Kaisha ,  Uchiyama Manufacturing Corp.

    Inventor： KAMADA, Akira ,  SUMIDA, Tomokazu ,  WATANABE, Selzou

    IPC: F02M61/14

    CPC classification number: F02M61/14 ,  F02F11/00 ,  F02M2200/85 ,  F02M2200/858

    Abstract: A fuel injection valve damping insulator damps vibration produced in a fuel injection valve (11). A damping insulator (30) is interposed between a shoulder portion (18) of a cylinder head and a tapered surface (24) of the fuel injection valve (11) that faces the shoulder portion. The damping insulator (30) includes an annular tolerance ring (33) that abuts against the tapered surface (24), and an elastic member (36) that is arranged between the tolerance ring (33) and the shoulder portion (18). An annular coil spring (34) and a sleeve (35) are each embedded juxtaposed in the elastic member (36). A height (H2) of the sleeve (35) is formed lower than an outer diameter (HI) of individual small ring portions that form a helix of the coil spring (34), and at least one of a tolerance ring (33) side and a shoulder portion (18) side of the sleeve (35) is buried in the elastic member (36).

    Abstract translation: 燃料喷射阀阻尼绝缘体减少在燃料喷射阀（11）中产生的振动。 阻尼绝缘体（30）插入在气缸盖的肩部（18）和面向肩部的燃料喷射阀（11）的锥形表面（24）之间。 阻尼绝缘体（30）包括与锥形表面（24）抵接的环形公差环（33）和布置在公差环（33）和肩部（18）之间的弹性构件（36）。 环形螺旋弹簧（34）和套筒（35）各自嵌入弹性构件（36）中。 套筒（35）的高度（H2）形成为比形成螺旋弹簧（34）的螺旋线的各个小环部的外径（H1）低，公差环（33）侧 并且套筒（35）的肩部（18）侧被埋设在弹性部件（36）中。

    PUMP FOR SUPPLYING HIGH-PRESSURE FUEL
    5.
    发明公开
    PUMP FOR SUPPLYING HIGH-PRESSURE FUEL 有权
    高压燃油泵

    公开(公告)号：EP2341237A1

    公开(公告)日：2011-07-06

    申请号：EP09823679.7

    申请日：2009-10-29

    Applicant: Hitachi Automotive Systems, Ltd.

    Inventor： USUI Satoshi ,  TAMURA Shingo ,  MIYAZAKI Katsumi ,  YAMADA Hiroyuki

    IPC: F02M59/28 ,  F02M59/44

    CPC classification number: F02M59/44 ,  F02M39/02 ,  F02M59/102 ,  F02M59/366 ,  F02M2200/02 ,  F02M2200/85 ,  F04B1/0404 ,  F04B1/0408 ,  F04B1/0421 ,  F04B1/0439 ,  F04B53/168

    Abstract: It is an object of the present invention to accurately position a cylinder of a high-pressure fuel pump with respect to an attachment fitting hole provided in an engine block of an internal combustion engine in mounting the pump on the engine block.
    The high-pressure fuel pump of the invention is provided with a holder including: an outer cylindrical surface portion fitted to a high-pressure fuel pump attachment fitting hole installed on an engine block of the internal combustion engine; and a cylindrical fitting portion fitted to an outer circumference of the cylinder of the pump. The holder is configured such that the outer cylindrical surface portion and the cylindrical fitting portion are formed in a single piece resulting from machining one and the same member. Such a configuration can achieve the above-mentioned object. The central axis of an insertion hole of the piston plunger installed in the cylinder easily provides coaxiality with respect to the central axis of the attachment fitting hole installed in the engine block of the internal combustion engine. Biting and wear between the cylinder and the piston plunger, which are caused by the side force applied to the piston plunger by a drive mechanism, can be reduced.

    TERMINAL SEAL STRUCTURE FOR DIRECT-INJECTION GASOLINE ENGINE FUEL RAIL
    6.
    发明公开
    TERMINAL SEAL STRUCTURE FOR DIRECT-INJECTION GASOLINE ENGINE FUEL RAIL 审中-公开
    解决方案

    公开(公告)号：EP3171016A4

    公开(公告)日：2017-07-19

    申请号：EP15822793

    申请日：2015-07-15

    Applicant: USUI KOKUSAI SANGYO KK

    Inventor： ASAHI DAISUKE

    IPC: F02M55/02 ,  F02M55/00 ,  F02M55/04 ,  F02M69/46

    CPC classification number: F02M55/005 ,  F02M55/02 ,  F02M55/025 ,  F02M55/04 ,  F02M69/465 ,  F02M2200/85

    Abstract: Provided is an end seal structure of a fuel rail for a gasoline direct injection engine, the fuel rail being constructed and arranged such that an end or both ends of a rail body composed of a tubular body such as a pipe is/are closed by an end cap or end caps, the end seal structure having a simple structure, making it possible for the end cap portion to meet higher pressure requirements. The end seal structure is characterized in that: a pressure receiving surface is formed on an inner wall surface of the end cap having the cap-nut shape, the pressure receiving surface defining a seat surface; a pressing surface is formed at an end of the rail body, the pressing surface defining a seat surface facing the pressure receiving surface; the end cap having the cap-nut shape and including the pressure receiving surface is screwed and fixed to the rail body; and the pressure receiving surface of the end cap is brought into pressure contact with the pressing surface of the rail body by an axial force created by tightening of the end cap having the cap-nut shape so as to seal the end of the rail body.

    Abstract translation: 本发明提供一种用于汽油直喷发动机的燃料轨道的端部密封结构，所述燃料轨道被构造和布置成使得由诸如管道的管状主体构成的轨道主体的端部或两端由 端盖或端盖，端部密封结构具有简单的结构，使得端盖部分能够满足更高的压力要求。 端部密封结构的特征在于：在具有帽形螺母形状的端盖的内壁表面上形成受压表面，压力接收表面限定座表面; 在所述导轨主体的端部处形成有按压表面，所述按压表面限定了面对所述受压表面的座表面; 将具有帽形螺母形状并包括受压表面的端盖螺纹固定在轨体上; 并且通过拧紧具有帽形螺母形状的端盖产生的轴向力使端盖的受压表面与导轨主体的压力表面压力接触，从而密封导轨主体的端部。

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