公开(公告)号：US08807116B2

公开(公告)日：2014-08-19

申请号：US13142792

申请日：2009-12-29

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

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

IPC分类号： F02B3/00

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： A fuel injection system for an internal combustion engine, comprising: at least one fuel electroinjector; and one electronic control unit designed to supply the fuel electroinjector, in a fuel injection phase in an engine cylinder, with at least a first electrical command to perform a pilot fuel injection, and a second electrical command to perform a main fuel injection. The first and second electrical commands are separated in time by an electrical dwell time such that the main fuel injection starts without interruption with respect to the pilot fuel injection. The electrical dwell time between the first and second electrical commands belongs to an electrical dwell time range in which the total fuel amount injected in the pilot and main fuel injections in a fuel injection phase in an engine cylinder is substantially constant.

摘要翻译： 一种用于内燃机的燃料喷射系统，包括：至少一个燃料电喷射器; 以及一个电子控制单元，其设计成在发动机气缸中的燃料喷射阶段中至少提供第一电气指令以执行先导燃料喷射，以及执行主燃料喷射的第二电气命令。 第一和第二电命令在时间上被电停留时间分开，使得主燃料喷射相对于引燃燃料喷射而不间断地开始。 第一和第二电气指令之间的电停留时间属于电停留时间范围，其中在发动机气缸中的燃料喷射阶段中在先导和主燃料喷射的总燃料量基本上恒定。

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：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：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：US20060102151A1

公开(公告)日：2006-05-18

申请号：US11113502

申请日：2005-04-25

申请人： Mario Ricco ,  Sisto Matthaeis ,  Raffaele Ricco ,  Domenico Lepore

发明人： Mario Ricco ,  Sisto Matthaeis ,  Raffaele Ricco ,  Domenico Lepore

IPC分类号： F02M63/00

CPC分类号： F02M59/366 ,  F02M47/027 ,  F02M59/102 ,  F02M59/466 ,  F02M63/0225

摘要： The injection system (1) comprises a pump (7) designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail (6), for supplying a plurality of injectors (5). The pump (7) comprises at least one pumping element (18) actuated with reciprocating motion with a compression stroke (Pi-Ps) at a sinusoidal speed (24), in synchronism with each step of fuel injection. The injection system (1) comprises at least one by-pass solenoid valve (14), which is controlled by a chopper control unit (16, 28) for modulating the delivery of the pumping element (18) by varying both the instant of start (To) and the instant of end (T1) of delivery during the compression stroke (Pi-Ps), in such a way that the delivery is synchronous with the injection phase.

摘要翻译： 注射系统（1）包括设计成将高压燃料（例如由公共导轨（6）形成）用于供应多个喷射器（5）的积聚体积的泵（7）。 泵（7）包括与燃料喷射的每个步骤同步的以正弦速度（24）与压缩冲程（Pi-Ps）的往复运动致动的至少一个泵送元件（18）。 注射系统（1）包括至少一个旁路电磁阀（14），其由斩波控制单元（16,28）控制，用于通过改变启动时刻来调节泵送元件（18）的输送 （Pi）和压缩行程（Pi-Ps）期间的交货时间（T 1）和交货时间（T 1 SUB）之间的差异。

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：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：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：US20080115766A1

公开(公告)日：2008-05-22

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： F02M61/00

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。