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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。
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公开(公告)号：US20130167808A1
公开(公告)日：2013-07-04
申请号：US13805629
申请日：2011-07-07
IPC分类号： F02M69/04
CPC分类号： F02M69/04 , F02D41/20 , F02D41/2096 , F02D41/402 , F02D2041/389 , F02M45/08 , F02M47/027 , F02M63/0015 , F02M63/0078 , Y02T10/44
摘要： A fuel-injection system for an internal-combustion engine has at least one fuel injector with a fuel-metering servo valve provided with an open/close element, which is movable in response to the action of an electric actuator; and an electronic control unit which issues to the electric actuator two electrical commands, one for carrying out a pilot injection and one for carrying out a main injection; the two electrical commands being separated by an electrical dwell time such that the main injection starts, without solution of continuity with the pilot injection, when an open/close needle for carrying out fuel injections into a cylinder of the internal-combustion engine remains at a lift value in which the fuel flow rate is negligible; in particular, the second electrical command is issued during a rebound of the open/close element on the valve seat.
摘要翻译： 用于内燃机的燃料喷射系统具有至少一个具有燃料计量伺服阀的燃料喷射器，所述燃料计量伺服阀具有打开/关闭元件，所述打开/关闭元件可响应于电致动器的动作而移动; 以及电子控制单元，其向电动致动器发出两个电气指令，一个用于执行引燃喷射，一个用于执行主喷射; 两个电气指令通过电停留时间分离，使得当用于执行燃料喷射到内燃机的气缸中的打开/关闭针头保持在 燃油流量可忽略不计的升程值; 特别地，在阀座上的打开/关闭元件的回弹期间发出第二电命令。
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23.发明申请HIGH OPERATION REPEATABILITY AND STABILITY FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE 有权用于内燃机的高操作重复性和稳定性燃油喷射系统公开(公告)号：US20120035832A1
公开(公告)日：2012-02-09
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
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。
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公开(公告)号：US08851118B2
公开(公告)日：2014-10-07
申请号：US13591816
申请日：2012-08-22
申请人： Sergio Stucchi , Onofrio De Michele , Raffaele Ricco , Marcello Gargano , Chiara Altamura , Carlo Mazzarella
发明人： Sergio Stucchi , Onofrio De Michele , Raffaele Ricco , Marcello Gargano , Chiara Altamura , Carlo Mazzarella
IPC分类号： F15B13/043
CPC分类号： F16K31/0624 , B60T8/364 , Y10T137/86614
摘要： A solenoid valve comprises a first mouth for an inlet of a working fluid and a second mouth and a third mouth for an outlet of the working fluid. The valve has a first operating position in which a passage of fluid from the first mouth to the second mouth and the third mouth is enabled, a second operating position in which a passage of fluid from the first mouth to only one of the second and third mouths is enabled, and a third operating position in which the passage of fluid from the first to the second mouth and the third mouth is disabled.
摘要翻译： 电磁阀包括用于工作流体入口的第一口和用于工作流体出口的第二口和第三口。 所述阀具有第一操作位置，在所述第一操作位置中，流体从所述第一口到所述第二口和所述第三口的通道被启用;第二操作位置，其中流体从所述第一口到第二和第三口中的一个通道 并且能够使流体从第一口到第二口和第三口的流通被禁用的第三操作位置。
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25.发明授权公开(公告)号：US08844480B2
公开(公告)日：2014-09-30
申请号：US13591886
申请日：2012-08-22
申请人： Sergio Stucchi , Onofrio De Michele , Raffael Ricco , Marcello Gargano , Francesco Vattaneo , Domenico Lepore
发明人： Sergio Stucchi , Onofrio De Michele , Raffael Ricco , Marcello Gargano , Francesco Vattaneo , Domenico Lepore
CPC分类号： F01L1/25 , F01L9/021 , F01L13/00 , F16K31/0624
摘要： An internal-combustion engine with two intake valves for each cylinder is provided with a system for variable actuation of the intake valves, comprising a single solenoid valve for each cylinder that controls communication of the pressurized-fluid chamber of the system with an exhaust channel. The solenoid valve is a three-way, three-position solenoid valve, comprising an inlet permanently communicating with the pressurized-fluid chamber and with the hydraulic actuator of an intake valve, and two outlets communicating, respectively, with the actuator of the other intake valve and with said exhaust channel. The solenoid valve has a first position, in which the inlet communicates with both of the outlets, a second position, in which the inlet communicates only with the aforesaid outlet connected to the actuator of an intake valve and does not communicate, instead, with the outlet connected to the exhaust channel, and a third position, in which the inlet does not communicate with any of the two outlets.
摘要翻译： 具有用于每个气缸的两个进气阀的内燃机设置有用于可变致动进气门的系统，包括用于每个气缸的单个电磁阀，其控制系统的加压流体室与排气通道的连通。 电磁阀是三通三位电磁阀，包括与加压流体室永久连通的入口和进气阀的液压致动器，以及分别与另一进气口的致动器连通的两个出口 阀门和所述排气通道。 电磁阀具有第一位置，其中入口与两个出口连通，第二位置，其中入口仅与连接到进气阀的致动器的上述出口连通，而不与第二位置通信 出口连接到排气通道，第三位置，其中入口不与两个出口中的任何一个连通。
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26.发明授权Internal combustion engine, with a system for variable actuation of the intake valves provided with improved solenoid valves, and solenoid valve for this engine 有权具有用于可变地致动设有改进的电磁阀的进气门的系统的内燃机和用于该发动机的电磁阀公开(公告)号：US08997703B2
公开(公告)日：2015-04-07
申请号：US13304009
申请日：2011-11-23
CPC分类号： F01L9/023 , F01L9/025 , F01L2001/3443 , F16K31/0655
摘要： An internal combustion engine for motor-vehicles, includes a system for variable actuation of the intake valves of the engine having a solenoid valve controllable between a closed condition and an open condition wherein it places a pressurized fluid chamber in communication with an exhaust chamber, with the aim of decoupling the intake valve from the respective tappet and causing the quick closing of the intake valve due to the respective return spring. The solenoid valve has a valve element with a cylindrical body having a first conical surface portion and a second conical surface portion. The conical surface portions are defined by the axially opposite ends of a circumferential groove formed on the valve element. The first conical surface portion cooperates with the valve seat. The other conical surface portion has an outer diameter substantially identical to the diameter of the annular edge defining the valve seat.
摘要翻译： 一种用于机动车辆的内燃机，包括用于可变地致动发动机的进气门的系统，该系统具有可在闭合状态和打开状态之间控制的电磁阀，其中，所述电磁阀将加压流体室与排气室连通， 将进气门与相应的挺杆分离并使得由于相应的回位弹簧而使进气门快速关闭的目的。 电磁阀具有带有圆柱体的阀元件，该圆柱体具有第一锥形表面部分和第二锥形表面部分。 锥形表面部分由形成在阀元件上的周向槽的轴向相对端限定。 第一锥形表面部分与阀座配合。 另一个锥形表面部分具有与限定阀座的环形边缘的直径基本相同的外径。
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27.发明授权High operation repeatability and stability fuel injection system for an internal combustion engine 有权用于内燃机的高操作重复性和稳定性燃油喷射系统公开(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。
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公开(公告)号：US09068544B2
公开(公告)日：2015-06-30
申请号：US13805629
申请日：2011-07-07
CPC分类号： F02M69/04 , F02D41/20 , F02D41/2096 , F02D41/402 , F02D2041/389 , F02M45/08 , F02M47/027 , F02M63/0015 , F02M63/0078 , Y02T10/44
摘要： A fuel-injection system for an internal-combustion engine has at least one fuel injector with a fuel-metering servo valve provided with an open/close element, which is movable in response to the action of an electric actuator; and an electronic control unit which issues to the electric actuator two electrical commands, one for carrying out a pilot injection and one for carrying out a main injection; the two electrical commands being separated by an electrical dwell time such that the main injection starts, without solution of continuity with the pilot injection, when an open/close needle for carrying out fuel injections into a cylinder of the internal-combustion engine remains at a lift value in which the fuel flow rate is negligible; in particular, the second electrical command is issued during a rebound of the open/close element on the valve seat.
摘要翻译： 用于内燃机的燃料喷射系统具有至少一个具有燃料计量伺服阀的燃料喷射器，所述燃料计量伺服阀具有打开/关闭元件，所述打开/关闭元件可响应于电致动器的动作而移动; 以及电子控制单元，其向电动致动器发出两个电气指令，一个用于执行引燃喷射，一个用于执行主喷射; 两个电气指令通过电停留时间分离，使得当用于执行燃料喷射到内燃机的气缸中的打开/关闭针头保持在 燃油流量可忽略不计的升程值; 特别地，在阀座上的打开/关闭元件的回弹期间发出第二电命令。
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公开(公告)号：US07395812B2
公开(公告)日：2008-07-08
申请号：US11617629
申请日：2006-12-28
CPC分类号： F02M59/466 , F02M59/08 , F02M59/205 , F02M59/366 , F02M2200/16
摘要： The injection system comprises a high-pressure pump (7) with variable flowrate, having a number of pumping elements (18) actuated with reciprocating motion and provided each with a corresponding intake valve (22). An accumulation volume (28) is supplied with fuel at low pressure from an intake pipe (10) of the pump (7) through a solenoid valve (31) controlled as a function of the operating conditions of the engine (2). The accumulation volume (28) is in communication with the intake valves (22) through corresponding outlet holes (29), and the solenoid valve (31) is provided with nebulizer holes (36) such as to generate corresponding jets of fuel, each directed towards at least one of said outlet holes (29).
摘要翻译： 注射系统包括具有可变流量的高压泵（7），具有多个泵送元件（18），其以往复运动的方式被致动并设置有相应的进气阀（22）。 通过根据发动机（2）的操作条件控制的电磁阀（31），从泵（7）的进气管（10）以低压供给燃料。 蓄积体积（28）通过相应的出口孔（29）与进气阀（22）连通，并且电磁阀（31）设置有雾化器孔（36），以产生相应的燃料喷射，每个导向 朝向所述出口孔（29）中的至少一个。
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30.发明授权Fuel-injection system for an internal-combustion engine and corresponding method for controlling fuel injection 有权用于内燃机的燃料喷射系统和用于控制燃料喷射的相应方法公开(公告)号：US07240859B2
公开(公告)日：2007-07-10
申请号：US11391443
申请日：2006-03-29
IPC分类号： B05B1/30
CPC分类号： F02M47/027 , F02D41/20 , F02M45/08 , F02M45/12 , F02M63/008 , F02M2547/003 , Y10S239/90
摘要： A fuel-injection system in an internal-combustion engine is provided with an electroinjector (1) comprising an injection nozzle (5), and a needle (7) mobile along an opening stroke and a closing stroke for opening/closing the nozzle (5) under the control of an electroactuator device (8). The opening stroke of the needle (7) is controlled by a rod (14) pushed by the pressure of the fuel in a control chamber (15), in such a way as to keep the needle (7) normally in the position for closing the nozzle (5). The control chamber (15) is equipped with an inlet duct (18) having a pre-set diameter (D4) and with an outlet passage (24) having a diameter (D5) and controlled by a control valve (16). The method for controlling fuel injection comprises the steps of choosing the ratio (D5/D4) of the aforesaid diameters so as to determine a certain rate of displacement of the needle (7), and issuing to the device (8) a first electrical command (C1) and a second electrical command (C2) sufficiently close to one another to displace the needle (7) with a profile of motion (P) without any discontinuities in time.
摘要翻译： 在内燃机中的燃料喷射系统设置有电喷射器（1），其包括喷射喷嘴（5）和沿打开行程移动的针（7）和用于打开/关闭喷嘴（5）的关闭行程 ）在电致动器装置（8）的控制下。 针（7）的打开行程由通过控制室（15）中的燃料压力推动的杆（14）来控制，以使针（7）保持正常的位置 喷嘴（5）。 控制室（15）装备有具有预设直径（D 4 S）的入口管道（18），并且具有直径（D <5> 5）的出口通道（24） / SUB>）并由控制阀（16）控制。 用于控制燃料喷射的方法包括以下步骤：选择上述直径的比（D 5 / D 4/4），以便确定针的一定的位移速率 （7），并且向所述设备（8）发出彼此充分接近的第一电命令（C 1> 1）和第二电命令（C SUB2＆lt; 2＆gt;）以使位移 具有运动轮廓（P）的针（7）在时间上没有任何不连续性。
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