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    Perfected electromagnetic metering valve for a fuel injector
    53.
    发明授权
    Perfected electromagnetic metering valve for a fuel injector 失效
    完善的燃油喷射器电磁计量阀

    公开(公告)号：US06199774B1

    公开(公告)日：2001-03-13

    申请号：US08987980

    申请日：1997-12-10

    申请人： Mario Ricco

    发明人： Mario Ricco

    IPC分类号： F02M4702

    CPC分类号： F02M63/0036 ,  F02M47/027 ,  F02M63/0021 ,  F02M63/0022 ,  F02M63/022 ,  F02M2200/306 ,  F02M2547/003

    摘要： The metering valve has a shutter for a discharge conduit, and an electromagnet for controlling an armature disconnected from the respective stem and sliding along the stem by means of a sleeve. The stem is guided by a fixed sleeve and is pushed by a first spring to hold the shutter in the closed position, and a second spring keeps a shoulder of the armature resting axially against a C-shaped ring fitted to the stem. To reduce the overtravel of the armature with respect to the travel of the stem to move the shutter into the closed position, and to damp oscillation of the armature, provision is made, between the two sleeves, for a bush of calibrated thickness, which slides along the stem and is such as to form a small axial clearance with the sleeves.

    摘要翻译： 计量阀具有用于排出管道的闸门，以及电磁铁，用于控制从相应的杆断开并且通过套筒沿杆杆滑动的电枢。 杆由固定套筒引导，并被第一弹簧推动以将闸门保持在关闭位置，并且第二弹簧保持电枢的肩部轴向抵靠安装在杆上的C形环。 为了减少电枢相对于杆的行进而超越行程以将闸门移动到关闭位置，并且为了减轻电枢的振荡，在两个套筒之间设置用于校准厚度的衬套，其滑动 沿着杆部并且与套筒形成小的轴向间隙。

    Device for regulating the supply of pressurized fluid to a pressurized fluid accumulator, for example for motor vehicles
    54.
    发明授权
    Device for regulating the supply of pressurized fluid to a pressurized fluid accumulator, for example for motor vehicles 失效
    用于调节加压流体供应给加压流体蓄积器的装置，例如用于机动车辆

    公开(公告)号：US5642716A

    公开(公告)日：1997-07-01

    申请号：US622072

    申请日：1996-03-26

    申请人： Mario Ricco

    发明人： Mario Ricco

    IPC分类号： F02M37/00 ,  F02D41/30 ,  F02D41/32 ,  F02D41/34 ,  F02D41/38 ,  F02M47/00 ,  F02M55/02 ,  F02M63/02 ,  F02M69/00 ,  F02M41/00

    CPC分类号： F02D41/3863 ,  F02D41/3809 ,  F02M55/025 ,  F02M63/0225 ,  F02D2250/31

    摘要： The device comprises a pressure pump for pumping fuel from a reservoir to aressure duct connected to an accumulator. This supplies a series of injectors for an internal combustion engine. The device further includes a pair of solenoid valves disposed between the pump and the accumulator, which are controlled by an electronic unit as a function of data on the pressure in the accumulator detected by a sensor. The solenoid valve is normally closed to discharge fuel received from the pump into the reservoir and is opened to deliver this fuel to the accumulator. On the other hand the solenoid valve is normally open to deliver fuel received to the accumulator and is closed to discharge the fuel from the accumulator into the reservoir. Between the two solenoid valves and is disposed a non-return valve.

    摘要翻译： 该装置包括用于将燃料从储存器泵送到连接到蓄能器的压力管道的压力泵。 这为内燃机提供了一系列喷油器。 该装置还包括设置在泵和蓄电池之间的一对电磁阀，其由作为由传感器检测的蓄能器中的压力的​​数据的函数的电子单元控制。 电磁阀通常关闭，以将从泵接收的燃料排放到储存器中并打开以将该燃料输送到蓄能器。 另一方面，电磁阀通常打开以将接收到燃料的燃料输送到蓄能器并关闭，以将燃料从蓄能器排出到储存器中。 在两个电磁阀之间并设置止回阀。

    Perfected diesel engine electromagnetic fuel injector
    55.
    发明授权
    Perfected diesel engine electromagnetic fuel injector 失效
    完善的柴油机电磁燃油喷射器

    公开(公告)号：US5011082A

    公开(公告)日：1991-04-30

    申请号：US485617

    申请日：1990-02-27

    申请人： Francesco P. Ausiello ,  Mario Ricco

    发明人： Francesco P. Ausiello ,  Mario Ricco

    IPC分类号： F02M47/00 ,  F02B3/06 ,  F02M47/02 ,  F02M57/02

    CPC分类号： F02M47/027 ,  F02B3/06

    摘要： A perfected fuel injector comprising a plunger for controlling fuel passage between an injection chamber and at least an injection orifice formed in an injection nozzel; and an electromagnetic fuel metering valve for controlling fuel passage through a drain orifice between a control chamber, supplied with fuel under pressure, and a low-pressure chamber, so as to reduce to a given value the pressure of the fuel inside the control chamber and so displace the plunger. Pressurized fuel is supplied to the injection chamber and control chamber by means of a single fitting connected to a supply pipe and coming out inside a supply orifice formed in the injector body and communicating with the control chamber and with a duct supplying fuel to the injection chamber and comprising an annular chamber and a radial hole formed in a sleeve housed in a hole on the body.

    Fuel injection system with high repeatability and stability of operation for an internal-combustion engine
    56.
    发明授权
    Fuel injection system with high repeatability and stability of operation for an internal-combustion engine 有权
    具有高内燃机重复性和稳定性的燃油喷射系统

    公开(公告)号：US09140223B2

    公开(公告)日：2015-09-22

    申请号：US12624200

    申请日：2009-11-23

    申请人： Mario Ricco ,  Sergio Stucchi ,  Raffaele Ricco ,  Onofrio De Michele ,  Chiara Altamura ,  Domenico Lepore

    发明人： Mario Ricco ,  Sergio Stucchi ,  Raffaele Ricco ,  Onofrio De Michele ,  Chiara Altamura ,  Domenico Lepore

    IPC分类号： F02M45/08 ,  F02M47/02 ,  F02M63/00 ,  F02D41/20 ,  F02D41/40

    CPC分类号： F02M47/027 ,  F02D41/20 ,  F02D41/403 ,  F02M45/08 ,  F02M63/0024 ,  F02M63/004 ,  F02M63/007 ,  F02M63/0075 ,  F02M63/008 ,  F02M2200/306 ,  F02M2547/003

    摘要： The fuel injection system comprises a fuel injector controlled by commands of a control unit. The fuel injector comprises a metering servo valve having a control chamber provided with an outlet passage that is opened/closed by an open/close element that is axially movable. The open/close element is carried by an axial guide element that is separate from an armature of an electromagnet. The open/close element is held in the closing position by a spring acting through an intermediate body. In some instances, the strokes of the open/close element and of the armature are chosen so as to eliminate, upon closing of the servo valve, the rebounds of the open/close element subsequent to the first rebound. The control unit controls a fuel injection comprising a pilot fuel injection and a main fuel injection, via two distinct electrical commands, which are spaced apart by a dwell time such as to occur in an area of reduced variation of the amount of injected fuel. Therefore, the stability of operation of the fuel injection system increases as the dwell time varies.

    摘要翻译： 燃料喷射系统包括由控制单元的命令控制的燃料喷射器。 燃料喷射器包括计量伺服阀，其具有控制室，该控制室设置有通过可轴向移动的打开/关闭元件打开/关闭的出口通道。 开/关元件由与电磁体的电枢分离的轴向引导元件承载。 打开/关闭元件通过作用在中间体上的弹簧保持在关闭位置。 在某些情况下，选择打开/关闭元件和电枢的行程，以便在关闭伺服阀时消除在第一次回弹之后的打开/关闭元件的反弹。 控制单元经由两个不同的电气指令来控制包括先导燃料喷射和主燃料喷射的燃料喷射，其间隔开停留时间，以便发生在喷射燃料量的变化量减小的区域中。 因此，燃料喷射系统的运行稳定性随着停留时间的变化而增加。

    Fuel injector equipped with a metering servovalve for an internal combustion engine
    57.
    发明授权
    Fuel injector equipped with a metering servovalve for an internal combustion engine 有权
    燃油喷射器配备有用于内燃机的计量伺服阀

    公开(公告)号：US08459575B2

    公开(公告)日：2013-06-11

    申请号：US12491938

    申请日：2009-06-25

    申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele

    发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele

    IPC分类号： F02M51/06 ,  F02M51/00 ,  B05B1/30 ,  F16K31/02

    CPC分类号： F02M63/004 ,  F02M47/027 ,  F02M63/0042 ,  F02M63/007 ,  F02M63/008 ,  F02M2200/16 ,  F02M2200/27 ,  F02M2200/28 ,  F02M2547/003

    摘要： A fuel injector has an injector body and a control rod, which is movable in the injector body along an axis to control the opening/closing of a nozzle that injects fuel into a cylinder of the engine; the injector body houses a metering servovalve having a control chamber, which is axially delimited by the control rod and communicates with an inlet and with a discharge channel; the metering servovalve is provided with a shutter, which slides axially on an axial guide, from which the discharge channel exits, to open and close the discharge channel and, in consequence, vary the pressure in the control chamber; the discharge channel has at least two restrictions having calibrated passage sections and arranged in series with each other to divide the pressure drop along the discharge channel.

    摘要翻译： 燃料喷射器具有喷射器主体和控制杆，其可以沿着轴线在喷射器主体中移动，以控制将燃料喷射到发动机气缸中的喷嘴的打开/关闭; 注射器主体容纳具有控制室的计量伺服阀，该控制室由控制杆轴向限定并与入口和排放通道连通; 计量伺服阀设有挡板，其在轴向引导件上轴向滑动，排放通道从该导向器滑出，以打开和关闭排放通道，并因此改变控制室中的压力; 排出通道具有至少两个具有校准通道部分的限制并且彼此串联布置以沿着排出通道分开压降。

    Fuel injector with balanced metering servovalve, for an internal combustion engine
    58.
    发明授权
    Fuel injector with balanced metering servovalve, for an internal combustion engine 有权
    燃油喷射器具有平衡计量伺服阀，用于内燃机

    公开(公告)号：US07954787B2

    公开(公告)日：2011-06-07

    申请号：US12021531

    申请日：2008-01-29

    申请人： Mario Ricco ,  Raffaele Ricco ,  Antonio Gravina ,  Marcello Gargano ,  Sergio Stucchi ,  Onofrio De Michele

    发明人： Mario Ricco ,  Raffaele Ricco ,  Antonio Gravina ,  Marcello Gargano ,  Sergio Stucchi ,  Onofrio De Michele

    IPC分类号： F16K31/02

    CPC分类号： F02M47/027 ,  F02M63/004 ,  F02M63/007 ,  F02M63/008 ,  F02M2200/28 ,  F02M2547/003

    摘要： The injector comprises a balanced metering servovalve to control a rod for the opening/closing of a nozzle. La servovalve has a valve body with a control chamber radially delimited by a tubular portion and fitted with an outlet passage that is opened/closed by an axially movable shutter. The servovalve is also integral with an axial stem, provided with a lateral surface, through which the outlet channel exits. The shutter is coupled to the stem in an axially sliding manner and, when it closes the outlet passage, it is subjected to substantially null axial fuel pressure. The outlet passage has a calibrated segment distanced from the shutter and close to a bottom wall of the control chamber. The calibrated segment is carried by an element fixed to the valve body in correspondence to an axial segment of the outlet passage.

    摘要翻译： 喷射器包括平衡计量伺服阀，用于控制用于打开/关闭喷嘴的杆。 La伺服阀具有阀体，其具有由管状部分径向限定的控制室，并且装配有由可轴向移动的快门打开/关闭的出口通道。 伺服阀还与轴向杆成一体，轴向杆具有侧面，出口通道通过该侧面离开。 快门以轴向滑动方式联接到杆上，并且当其关闭出口通道时，其受到基本上无效的轴向燃料压力。 出口通道具有远离闸门并靠近控制室的底壁的校准段。 校准段由与出口通道的轴向段对应的固定到阀体的元件承载。

    Device for regulating pressure/flow in an internal combustion engine fuel injection system
    59.
    发明授权
    Device for regulating pressure/flow in an internal combustion engine fuel injection system 有权
    用于调节内燃机燃油喷射系统中的压力/流量的装置

    公开(公告)号：US07891338B2

    公开(公告)日：2011-02-22

    申请号：US11096874

    申请日：2005-04-01

    申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Annunziata Anna Satriano ,  Raffaele Ricco

    发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Annunziata Anna Satriano ,  Raffaele Ricco

    IPC分类号： F02M57/02

    CPC分类号： F02D41/3863 ,  F02D2200/0602 ,  F02M63/0225 ,  F02M63/0245

    摘要： The injection system (1) includes a storage volume (6) of pressurized fuel supplied by a high-pressure pump (7) along a delivery pipe (8); and a control unit (16) for defining the required fuel pressure of the storage volume (6) as a function of the operating conditions of the engine (2). The regulating device includes a bypass solenoid valve (14); and a pair of non-return valves (32, 33) connected antiparallel and located between the bypass valve (14) and the storage volume (6). One of the non-return valves (32, 33) permits fuel drainage from the storage volume (6) to the bypass valve (14) when the control unit (16) defines a predetermined reduction (Δp) in the fuel pressure of the storage volume (6).

    摘要翻译： 注射系统（1）包括沿着输送管（8）由高压泵（7）供应的加压燃料的储存容积（6）; 以及用于根据发动机（2）的操作条件来定义存储容积（6）的所需燃料压力的控制单元（16）。 调节装置包括旁路电磁阀（14）; 以及一对逆并联并位于旁通阀（14）和存储容积（6）之间的止回阀（32,33）。 其中一个止回阀（32,33）允许当控制单元（16）在燃料压力（D）中定义预定的减压量（＆Dgr; p）时从储存容积（6）到旁通阀（14） 存储卷（6）。