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    HIGH PRESSURE FUEL PUMP
    5.
    发明申请
    HIGH PRESSURE FUEL PUMP 审中-公开
    高压燃油泵

    公开(公告)号：US20150211454A1

    公开(公告)日：2015-07-30

    申请号：US14603797

    申请日：2015-01-23

    Applicant: DENSO CORPORATION

    Inventor： Hayaki TANABE ,  Takafumi NAITOU

    IPC: F02M37/06 ,  F04B53/00 ,  F04B17/05 ,  F04B53/14 ,  F04B9/04 ,  F02M37/04 ,  F04B53/16

    CPC classification number: F02M37/06 ,  F02M37/043 ,  F02M59/102 ,  F04B1/0413 ,  F04B9/042 ,  F04B17/05 ,  F04B53/006 ,  F04B53/14 ,  F04B53/16

    Abstract: A high pressure fuel pump includes a plunger, which slidably reciprocates along a slide axis in an inside of a cylinder, a tappet body, which reciprocates integrally with the plunger, and a roller, which is held by the tappet body and is rotated by rotation of a camshaft. When the roller and the cam main body are viewed in a direction of an axis of the camshaft, a contact point, at which the roller and the cam main body contact with each other, is displaced from an intersection point, at which the slide axis of the plunger and a tangent line to a circle of a cross section of the roller at the contact point intersect with each other, in a counter-rotational direction of the cam main body, which is opposite from a rotational direction of the cam main body.

    Abstract translation: 高压燃料泵包括：柱塞，其沿着气缸内部的滑动轴线滑动地往复运动，与柱塞一体往复运动的挺杆本体，以及由挺杆本体保持并通过旋转旋转的辊 的凸轮轴。 当从凸轮轴的轴线方向观察滚子和凸轮主体时，滚子和凸轮主体彼此接触的接触点从滑动轴线 并且在与所述凸轮主体的旋转方向相反的凸轮主体的相对旋转方向上，在所述接触点处的所述辊的横截面的圆的切线相交， 。

    COMMON RAIL SYSTEM HAVING MECHANICAL UNIT PUMPS
    7.
    发明申请
    COMMON RAIL SYSTEM HAVING MECHANICAL UNIT PUMPS 审中-公开
    具有机械单元泵的通用系统

    公开(公告)号：US20140338637A1

    公开(公告)日：2014-11-20

    申请号：US13894792

    申请日：2013-05-15

    Applicant: Caterpillar Inc.

    Inventor： Scott Shafer ,  Steven Tian

    IPC: F02M37/04 ,  F02M59/48 ,  F02D1/10

    CPC classification number: F02M37/043 ,  F02D1/10 ,  F02M59/08 ,  F02M59/26 ,  F02M59/48 ,  F02M63/027 ,  Y10T29/49233

    Abstract: A fuel system for an engine is disclosed. The engine may have a crankshaft and a plurality of cylinders. The fuel system may have a plurality of plungers separately connectable to the crankshaft and a plurality of fuel injectors associated with the plurality of cylinders. The fuel system may also have a common rail configured to store pressurized fuel. The fuel system may additionally have a plurality of first conduits, each first conduit fluidly connecting a barrel associated with a respective one of the plurality of plungers to the common rail. The fuel system may also have a plurality of second conduits, each second conduit fluidly connecting the common rail to a respective one of the plurality of fuel injectors.

    Abstract translation: 公开了一种用于发动机的燃料系统。 发动机可以具有曲轴和多个气缸。 燃料系统可以具有可分离地连接到曲轴的多个柱塞和与多个气缸相关联的多个燃料喷射器。 燃料系统还可以具有构造成存储加压燃料的共轨。 燃料系统可以另外具有多个第一导管，每个第一导管将与多个柱塞中的相应一个柱塞相关联的筒流体地连接到共轨。 燃料系统还可以具有多个第二管道，每个第二管道将共轨道流体地连接到多个燃料喷射器中的相应一个。

    FUEL PUMP DEVICE FOR VEHICLE ENGINES
    8.
    发明申请
    FUEL PUMP DEVICE FOR VEHICLE ENGINES 有权
    燃油泵装置用于车辆发动机

    公开(公告)号：US20130213723A1

    公开(公告)日：2013-08-22

    申请号：US13751248

    申请日：2013-01-28

    Applicant: SUZUKI MOTOR CORPORATION

    Inventor： Hiroyuki KANEKO

    IPC: B60K15/00

    CPC classification number: B60K15/00 ,  F02M37/043 ,  F02M37/06 ,  F02M39/02 ,  F02M2200/03 ,  F02M2200/185

    Abstract: A fuel pump device is installed in an engine compartment of a vehicle. The engine is placed in the engine compartment with a crankshaft extending in the vehicle width direction. An in-vehicle component is placed at one side of the engine compartment in the vehicle width direction relative to the engine. In the fuel pump device, an attachment is mounted on an end of the top of a cam housing mounted on the upper surface of the cylinder head. The end of the top of the cam housing is located at the other side of the engine compartment in the vehicle width direction relative to the engine. The attachment is so inclined with respect to the vehicle longitudinal direction as to be directed obliquely backward and upward from the cam shaft member toward the engine hood and the dash panel.

    Abstract translation: 燃油泵装置安装在车辆的发动机室中。 发动机被放置在具有沿车辆宽度方向延伸的曲轴的发动机舱中。 车内部件相对于发动机沿车宽方向配置在发动机室的一侧。 在燃料泵装置中，安装在安装在气缸盖的上表面上的凸轮壳体的顶部的端部上。 凸轮壳体的顶部的端部位于发动机室的相对于发动机的车辆宽度方向的另一侧。 该附件相对于车辆纵向方向倾斜，从凸轮轴构件朝向发动机罩和前围板倾斜向后并且向上。

    Single piston pump with dual return springs
    9.
    发明授权
    Single piston pump with dual return springs 有权
    单活塞泵带双回位弹簧

    公开(公告)号：US08495987B2

    公开(公告)日：2013-07-30

    申请号：US12802617

    申请日：2010-06-10

    Applicant: Robert Lucas ,  Ilija Djordjevic

    Inventor： Robert Lucas ,  Ilija Djordjevic

    IPC: F02M37/04

    CPC classification number: F02M59/102 ,  F02M37/04 ,  F02M37/043 ,  F04B1/0408 ,  F04B1/0426 ,  F04B53/144

    Abstract: Pump piston seizures caused by excessive side loads produced by the uneven loading of a large piston return spring are prevented by separating the tappet return function from the piston return function, thereby minimizing the spring force acting on the piston. Preferably, a stronger, heavier load outer spring is mounted between the pump body and the tappet, such that it imparts no load and therefore no side loads to the pumping piston. A weaker, lighter load inner spring imparts less side load to the pumping piston than a conventional piston return spring, because the inner spring need not carry any tappet load. During both the pumping and charging strokes of the piston, the piston return spring can assist the tappet return spring, but the tappet return spring does not assist the piston return spring.

    Abstract translation: 通过将挺杆返回功能与活塞返回功能分开来防止由大活塞复位弹簧的不均匀载荷产生的过大的侧向载荷引起的泵活塞咬合，从而最小化作用在活塞上的弹簧力。 优选地，较重的较重的负载外部弹簧安装在泵体和挺杆之间，使得其不施加负载，因此不向泵送活塞施加侧向载荷。 由于内部弹簧不需要携带任何挺杆载荷，内部较弱的内弹簧比常规的活塞复位弹簧赋予泵送活塞少的侧向载荷。 在活塞的抽吸和充气冲程期间，活塞复位弹簧可以帮助挺杆复位弹簧，但挺杆复位弹簧不能帮助活塞复位弹簧。

    Fuel pump for an internal combustion engine
    10.
    发明申请
    Fuel pump for an internal combustion engine 失效
    用于内燃机的燃油泵

    公开(公告)号：US20020117155A1

    公开(公告)日：2002-08-29

    申请号：US10073177

    申请日：2002-02-13

    Applicant: Toyota Jidosha Kabushiki Kaisha

    Inventor： Keiso Takeda ,  Kiyokazu Akiyama ,  Tatsushi Nakashima ,  Kimitaka Saito

    IPC: F02M037/04

    CPC classification number: F02M59/366 ,  F02D1/12 ,  F02M37/043 ,  F02M37/06 ,  F02M59/102 ,  F02M59/30 ,  F02M59/447 ,  F04B9/042 ,  F04B49/12 ,  F04B49/125 ,  F04B2205/05

    Abstract: A fuel pump for an internal combustion engine that transmits fuel with pressure by a lifting movement of a plunger that is caused to lift by a movement of a cam includes a lift amount changing mechanism. The lift amount changing mechanism includes a cam in which a height of a projection is varied along an axial direction of the camshaft, and a cam moving actuator that moves the cam along the axial direction of the camshaft. The lift amount of the plunger is changed by moving the cam along the axial direction of the camshaft. An amount of discharged fuel is controlled by changing the amount of discharged fuel per stroke of the plunger and is not determined only based upon the rotation speed of the engine. Therefore, the amount of discharged fuel can be increased with the engine rotated at a low speed, for example when the engine is being initially started, to improve a starting performance.

    Abstract translation: 一种用于内燃机的燃料泵，其通过由凸轮的运动引起提升的柱塞的提升运动而传递燃料的燃料泵包括提升量改变机构。 提升量改变机构包括突起的高度沿着凸轮轴的轴向变化的凸轮和沿着凸轮轴的轴向移动凸轮的凸轮移动致动器。 通过沿着凸轮轴的轴向移动凸轮来改变柱塞的提升量。 排出的燃料量通过改变柱塞的每冲程排出的燃料量来控制，并且不仅仅基于发动机的转速来确定。 因此，当发动机以低速旋转时，例如当发动机正在起动时，排出的燃料量可以增加，以提高起动性能。

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