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。

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。

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。

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）。

公开(公告)号：USRE41262E1

公开(公告)日：2010-04-27

申请号：US11121330

申请日：2005-05-04

申请人： Mario Ricco

发明人： Mario Ricco

IPC分类号： F02M57/06

CPC分类号： F02M21/0233 ,  F02D19/024 ,  F02D19/027 ,  F02M21/0209 ,  F02M21/0221 ,  F02M21/0242 ,  F02M21/0245 ,  F02M21/0254 ,  F02M21/0266 ,  F02M21/0296 ,  Y02T10/32

摘要： On-off valve intended to be arranged at the outlet of the gas accumulation reservoir in an electronic gas injection system for an internal combustion engine, presenting a valve member made of metallic material, co-operating with a valve seat made in a body, which is also made of metallic material, to ensure the good quality of tightness in all operative temperature and pressure conditions, with prolonged reliability in time.

摘要翻译： 用于内燃机的电子气体注入系统中设置在气体积聚槽的出口处的开关阀，具有由金属材料制成的阀构件，与阀体制成的阀座配合， 也由金属材料制成，以确保在所有工作温度和压力条件下的良好的紧密度，并且具有长时间的可靠性。

公开(公告)号：US07603986B2

公开(公告)日：2009-10-20

申请号：US11650530

申请日：2007-01-05

申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Domenico Lepore ,  Marcello Gargano

发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Domenico Lepore ,  Marcello Gargano

IPC分类号： F02M69/54 ,  F02M69/52

CPC分类号： F02M59/366 ,  F02M37/22 ,  F02M63/0265 ,  F02M2037/226 ,  F04B49/225 ,  F04B53/20

摘要： A fuel adjustment and filtering device for a high-pressure pump of a fuel injection system, the device comprising at least one filter, comprising a removable filter cartridge, comprising a filtering body, housed within a filter casing; a shut-off solenoid valve for metering fuel; and, a pressure control valve for the fuel. The solenoid valve and pressure control valve are housed in a block separate from the pump. In one embodiment, in which the pressure control valve is optional, the solenoid valve may be mounted on the filter casing.

摘要翻译： 一种用于燃料喷射系统的高压泵的燃料调节和过滤装置，该装置包括至少一个过滤器，包括可移除的过滤器滤芯，其包括容纳在过滤器壳体内的过滤体; 用于计量燃料的截止电磁阀; 以及用于燃料的压力控制阀。 电磁阀和压力控制阀被容纳在与泵分开的块中。 在一个实施例中，其中压力控制阀是可选的，电磁阀可以安装在过滤器壳体上。

公开(公告)号：US07527036B2

公开(公告)日：2009-05-05

申请号：US11741474

申请日：2007-04-27

申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Alfonso Di Meo

发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Alfonso Di Meo

IPC分类号： F02M37/04

CPC分类号： F02M63/008 ,  F02M47/027 ,  F02M63/0015 ,  F02M63/004 ,  F02M63/0043 ,  F02M63/0071 ,  F02M63/0073 ,  F02M2200/28 ,  F02M2547/003

摘要： A control servo valve is housed inside the casing of an internal combustion engine fuel injector, and has an actuator, a control chamber communicating with a fuel inlet and with a fuel outlet passage, and a shutter movable along an axis by the actuator between a closed position and an open position to close and open the outlet passage respectively; the servo valve also has a fixed axial rod interposed between the actuator and the control chamber; the outlet passage comes out through an outer lateral surface of the axial rod; and the shutter is defined by a sleeve which slides axially on the outer lateral surface, and, in the closed position, closes the outlet passage so as to be subjected to a zero axial resultant force by the pressure of the fuel.

摘要翻译： 控制伺服阀被容纳在内燃机燃料喷射器的壳体内，并且具有致动器，与燃料入口连通的控制室和燃料出口通道，以及通过致动器沿着轴可在闭合 位置和打开位置分别关闭和打开出口通道; 伺服阀还具有夹在致动器和控制室之间的固定轴向杆; 出口通道通过轴杆的外侧表面出来; 并且挡板由在外侧表面上轴向滑动的套筒限定，并且在关闭位置中封闭出口通道，以便通过燃料的压力经受零轴向合力。

公开(公告)号：US20090071005A1

公开(公告)日：2009-03-19

申请号：US12271349

申请日：2008-11-14

申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Sergio Stucchi

发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Sergio Stucchi

IPC分类号： B23P17/00 ,  H02K15/00 ,  B29C45/14

CPC分类号： F02M61/168 ,  F02M47/027 ,  F02M51/005 ,  F02M63/0015 ,  F02M2200/16 ,  F02M2200/9015 ,  Y10T29/49009 ,  Y10T29/494

摘要： A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing the open/close element; and a solenoid actuator, which can be actuated for exerting an action countering the thrust exerted by the elastic element. The solenoid actuator is formed by a monolithic assembly obtained in a mould, in which there is injected, on a core and a coil coupled to one another, a plastic material, which defines, once it has solidified, a body for insulation of the core from the injector body and which forms, once it has solidified, a monolithic assembly with the core and the coil.

摘要翻译： 用于内燃机的燃料喷射器包括喷射器主体和喷射控制阀，该喷射器主体和喷射控制阀又包括开/关元件; 用于推动打开/关闭元件的弹性止推元件; 以及螺线管致动器，其可被致动以发挥抵抗由弹性元件施加的推力的作用。 螺线管致动器由在模具中获得的整体组件形成，其中注入在芯体和彼此联接的线圈上，塑料材料一旦固化就限定了用于绝缘芯体的主体 一旦它已经凝固，从注射器本体形成一个具有芯和线圈的整体式组件。

公开(公告)号：US20090064971A1

公开(公告)日：2009-03-12

申请号：US12022078

申请日：2008-01-29

申请人： Mario Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Mariagrazia Lisbona

发明人： Mario Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Mariagrazia Lisbona

IPC分类号： F02M59/34 ,  F02M63/00 ,  F02D1/00

CPC分类号： F02M63/0225 ,  F02D41/3845 ,  F02D2250/04 ,  F02M59/06 ,  F02M59/102 ,  F02M59/205 ,  F02M59/366

摘要： An injection system includes a high-pressure pump with at least one pumping element operated in a reciprocating manner by corresponding intake and discharge strokes. Each pumping element is equipped with a corresponding intake valve in communication with an intake line, fed by a low-pressure pump. An on-off solenoid valve is positioned on the intake line of the pump and is controlled by a control unit with a frequency equal to a whole multiple or submultiple of that of the pumping action, multiplied by a factor different from 1 and/or between 0.90 and 1.10, inclusive.

摘要翻译： 喷射系统包括具有至少一个泵送元件的高压泵，该泵送元件通过相应的进气和排出冲程以往复运动方式操作。 每个泵送元件配备有与进气管路连通的相应进气阀，由进气管线供给，由低压泵供给。 一个开关电磁阀位于泵的进气管线上，并由一个控制单元控制，该控制单元的频率等于泵送动作的整数倍或更小的倍数乘以不同于1和/或/ 0.90和1.10（含）。

公开(公告)号：US20090032621A1

公开(公告)日：2009-02-05

申请号：US12023793

申请日：2008-01-31

申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Domenico Lepore ,  Carlo Mazzarella

发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Domenico Lepore ,  Carlo Mazzarella

IPC分类号： F02M61/16

CPC分类号： F02M47/027 ,  F02M63/004 ,  F02M63/008 ,  F02M2200/07 ,  F02M2200/9069 ,  F02M2547/003 ,  Y10S239/19

摘要： A fuel injector and servovalve for an internal combustion engine. In one embodiment, the fuel injector comprises a casing; a balanced metering servovalve in the casing that controls movement of an injection control rod along an axial cavity; said servovalve having; a valve body comprising a control chamber; an axial stem comprising a discharge channel having at least one radial segment that runs to a lateral surface of said axial stem; a calibrated inlet passage in communication with said control chamber; and an outlet passage in communication with said control chamber and the discharge channel; a sleeve having a shutter, said axial stem extending into said sleeve in a fluid tight manner and so that said sleeve that can axially slide along said axial stem between a closed position and an open position of said at least one radial segment, thereby controlling said movement of said injection control rod along said axial cavity; an electro-actuator having an armature that controls said axial sliding of said sleeve along said axial stem; an elastic member that exerts a force upon said armature that maintains said sleeve in said closed position, said electro-actuator being able to control said armature to overcome said force of said elastic member; and said armature being separate from said sleeve.

摘要翻译： 燃油喷射器和内燃机的伺服阀。 在一个实施例中，燃料喷射器包括壳体; 壳体中的平衡计量伺服阀控制注射控制杆沿轴向腔的运动; 所述伺服阀具有; 阀体，包括控制室; 轴向杆，包括具有至少一个径向段的排放通道，所述至少一个径向段延伸到所述轴向杆的侧表面; 与所述控制室连通的校准入口通道; 以及与所述控制室和所述排出通道连通的出口通道; 具有快门的套筒，所述轴向杆以流体密封的方式延伸到所述套筒中，并且使得所述套筒可沿着所述轴向轴线在所述至少一个径向段的关闭位置和打开位置之间轴向滑动，从而控制所述 所述注射控制杆沿所述轴向腔的运动; 电致动器，其具有控制所述套筒沿着所述轴杆的所述轴向滑动的电枢; 弹性构件，其将所述电枢施加力保持在所述闭合位置，所述电致动器能够控制所述电枢克服所述弹性构件的所述力; 并且所述电枢与所述套筒分离。