公开(公告)号：US08037869B2

公开(公告)日：2011-10-18

申请号：US12491329

申请日：2009-06-25

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

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

IPC分类号： F02M51/00

CPC分类号： F02M63/0024 ,  F02M47/027 ,  F02M63/0075 ,  F02M63/008 ,  F02M2200/07 ,  F02M2200/306 ,  F02M2200/9069

摘要： The injector comprises a balanced metering servovalve for controlling a rod for opening/closing a nebulizer. The servovalve has a valve body having a control chamber provided with an outlet passage that is opened/closed by an axially mobile open/close element. The open/close element is made of a single piece with a bushing separate from an armature plate of an electromagnet. The bushing is coupled to a stem in an axially slidable way for closing an exhaust duct in communication with the outlet passage The open/close element is kept in a closed position by a spring that acts upon the bushing through an intermediate body connected thereto. The armature plate can be displaced with respect to the bushing between a flange of the intermediate body and a shoulder of the bushing, for eliminating the rebounds of the open/close element upon closing of the servovalve.

摘要翻译： 喷射器包括用于控制用于打开/关闭雾化器的杆的平衡计量伺服阀。 伺服阀具有阀体，该阀体具有设置有通过轴向移动的开/关元件打开/关闭的出口通道的控制室。 打开/关闭元件由具有与电磁体的电枢板分开的衬套的单件制成。 衬套以可轴向滑动的方式联接到杆上，用于关闭与出口通道连通的排气管道。打开/关闭元件通过弹簧保持在关闭位置，弹簧通过连接到衬套的中间体作用在衬套上。 衔铁板可以在中间体的凸缘和套管的肩部之间相对于衬套移位，以在关闭伺服阀时消除打开/关闭元件的反弹。

公开(公告)号：US07784711B2

公开(公告)日：2010-08-31

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： F02M47/00

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。

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。

公开(公告)号：US20100186708A1

公开(公告)日：2010-07-29

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： F02B3/00 ,  F02M51/00

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/关闭元件和电枢的冲程，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：US07380541B1

公开(公告)日：2008-06-03

申请号：US11619967

申请日：2007-01-04

申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Antonio Gravina ,  Domenico Lepore

发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Antonio Gravina ,  Domenico Lepore

IPC分类号： F02M37/06

CPC分类号： F02M37/00 ,  F02M53/00 ,  F02M59/366 ,  F02M63/0001 ,  F02M63/0225 ,  F02M63/023 ,  F02M63/0265

摘要： The injection system comprises a high-pressure pump with variable flowrate, having at least one pumping element provided with an intake valve in communication with an intake pipe and a delivery valve in communication with a delivery pipe. A pressure regulator is set on the intake pipe downstream of a metering solenoid valve designed to meter the flowrate of the pump according to the operating conditions of the engine. The pressure regulator is designed to discharge the excess fuel into a compartment of a crankcase for lubricating the usual actuation mechanism of the pumping element. Set between an inlet of the solenoid valve and an inlet of the pressure regulator is a control volume designed to contain an amount of fuel such as to guarantee an adequate flow of fuel in an area corresponding to the inlet of the solenoid valve.

摘要翻译： 注射系统包括具有可变流量的高压泵，具有至少一个泵送元件，其具有与进气管连通的进气阀和与输送管连通的输送阀。 压力调节器设置在计量电磁阀下游的进气管上，该计量电磁阀设计成根据发动机的运行条件来计量泵的流量。 压力调节器被设计成将多余的燃料排放到曲轴箱的隔室中，用于润滑泵送元件的通常的致动机构。 设置在电磁阀的入口和压力调节器的入口之间的是控制体积，设计成容纳一定量的燃料，以保证在对应于电磁阀的入口的区域中具有足够的燃料流。

公开(公告)号：US20100162992A1

公开(公告)日：2010-07-01

申请号：US12493009

申请日：2009-06-26

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： F02B3/00 ,  F02M51/00

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 system comprises an injector controlled by commands of a control unit. The injector comprises a dosing 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 anchor of an electromagnet. The open/close element is held in the closing position by a spring acting through an intermediate body. Preferably, the strokes of the open/close element and of the anchor are chosen so as to eliminate, upon closing of the solenoid valve, the rebounds of the open/close element subsequent to the first rebound. The control unit controls an injection comprising a pre-injection and a main 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 system increases as said dwell time varies.

摘要翻译： 该系统包括由控制单元的命令控制的喷射器。 喷射器包括配量伺服阀，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锚固件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。 优选地，选择打开/关闭元件和锚固件的冲程，以便在关闭电磁阀时消除在第一回弹之后的打开/关闭元件的反弹。 控制单元经由两个不同的电气命令控制包括预喷射和主喷射的喷射，其间隔开停留时间，例如发生在减少的喷射量的变化量的区域中; 因此，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：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：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：US20080116300A1

公开(公告)日：2008-05-22

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： F02M61/16

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：US20080092855A1

公开(公告)日：2008-04-24

申请号：US11668637

申请日：2007-01-30

申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Chiara Altamura ,  Antonio Gravina ,  Carlo Mazzarella

发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele ,  Chiara Altamura ,  Antonio Gravina ,  Carlo Mazzarella

IPC分类号： F02M51/00

CPC分类号： F02M63/004 ,  F02M47/027 ,  F02M61/168 ,  F02M63/0043 ,  F02M63/008 ,  F02M2200/16 ,  F02M2200/28 ,  F02M2200/8053 ,  F02M2200/8076 ,  F02M2200/8092 ,  F02M2547/003

摘要： The metering servo valve comprises a valve body, an open/close element, and an electromagnet, and is housed in a shell of the injector. The electromagnet actuates a mobile armature for a travel defined by an arrest element, carried by the electromagnet, which is housed in a casing, fixed in the shell by means of a threaded ring nut. Said ring nut is screwed with a pre-set tightening torque on a thread of the shell. The casing has a resting surface designed to engage a shoulder of the shell. The surface is carried by an area of the casing designed to undergo deformation as a function of the tightening torque of the ring nut so as to enable fine adjustment of the travel of the armature.

摘要翻译： 计量伺服阀包括阀体，打开/关闭元件和电磁体，并且容纳在注射器的外壳中。 电磁铁驱动移动电枢，由由电磁体承载的止动元件所限定的行程，该电磁体通过螺纹环形螺母固定在外壳中，该壳体被容纳在壳体中。 所述环形螺母在壳的螺纹上以预定的紧固扭矩拧紧。 壳体具有设计成接合壳的肩部的搁置表面。 该表面由设计成经受变形的壳体的区域承载，作为环形螺母的紧固扭矩的函数，以便能够精细调节电枢的行程。