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1.发明授权公开(公告)号：US07444988B2
公开(公告)日：2008-11-04
申请号：US11113502
申请日：2005-04-25
IPC分类号： F02M57/02
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。
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公开(公告)号：US07228844B2
公开(公告)日：2007-06-12
申请号：US11111744
申请日：2005-04-22
IPC分类号： F02M37/04
CPC分类号： F02M63/0225 , F02D41/3845 , F02M59/34 , F02M59/366
摘要： The injection system has a pump for supplying high-pressure fuel to a storage volume for supplying a number of injectors. The pump has at least one reciprocating pumping element performing a compression stroke synchronously with each fuel injection. The injection system has at least one control device for controlling the amount of fuel supplied by the pump to the storage volume, and which is controlled by a chopper control unit to modulate the fuel volume introduced into the compression chamber during the intake stroke (Ps-Pi). The delivery start instant of the pumping element during the compression stroke being unequivocally defined by the fuel volume introduced.
摘要翻译： 注射系统具有用于将高压燃料供应到用于供应多个喷射器的存储容积的泵。 泵具有与每个燃料喷射同步地执行压缩冲程的至少一个往复泵送元件。 喷射系统具有至少一个控制装置，用于控制由泵供给到储存容积的燃料量，并由斩波控制单元控制，以调节在进气冲程期间引入压缩室的燃料量（Ps- Pi）。 在压缩冲程期间泵送元件的输送开始瞬间被引入的燃料体积明确地限定。
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3.发明授权公开(公告)号：US07980223B2
公开(公告)日：2011-07-19
申请号：US12261650
申请日：2008-10-30
IPC分类号： F02M37/04
CPC分类号： F02M59/366 , F02M47/027 , F02M59/102 , F02M59/466 , F02M63/0225
摘要： The injection system comprises a pump designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail, for supplying a plurality of injectors. The pump comprises at least one pumping element actuated with reciprocating motion with a compression stroke at a sinusoidal speed, in synchronism with each step of fuel injection. The injection system comprises at least one by-pass solenoid valve, which is controlled by a chopper control unit for modulating the delivery of the pumping element by varying both the instant of start and the instant of end of delivery during the compression stroke, in such a way that the delivery is synchronous with the injection phase.
摘要翻译： 注射系统包括设计成将高压燃料（例如由公共轨道形成的蓄积体积）用于供应多个喷射器的泵。 该泵包括与每个燃料喷射步骤同步的以正弦速度的压缩行程以往复运动致动的至少一个泵送元件。 喷射系统包括至少一个旁路电磁阀，其由斩波器控制单元控制，用于通过在压缩冲程期间改变开始时刻和输送结束时刻来调节泵送元件的输送， 一种交付方式与注入阶段同步。
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4.发明申请公开(公告)号：US20090050110A1
公开(公告)日：2009-02-26
申请号：US12261650
申请日：2008-10-30
CPC分类号： F02M59/366 , F02M47/027 , F02M59/102 , F02M59/466 , F02M63/0225
摘要： The injection system comprises a pump designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail, for supplying a plurality of injectors. The pump comprises at least one pumping element actuated with reciprocating motion with a compression stroke at a sinusoidal speed, in synchronism with each step of fuel injection. The injection system comprises at least one by-pass solenoid valve, which is controlled by a chopper control unit for modulating the delivery of the pumping element by varying both the instant of start and the instant of end of delivery during the compression stroke, in such a way that the delivery is synchronous with the injection phase.
摘要翻译： 注射系统包括设计成将高压燃料（例如由公共轨道形成的蓄积体积）用于供应多个喷射器的泵。 该泵包括与每个燃料喷射步骤同步的以正弦速度的压缩冲程以往复运动致动的至少一个泵送元件。 喷射系统包括至少一个旁路电磁阀，其由斩波器控制单元控制，用于通过在压缩冲程期间改变开始时刻和输送结束时刻来调节泵送元件的输送， 一种交付方式与注入阶段同步。
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5.发明申请FUEL INJECTION SYSTEM WITH HIGH REPEATABILITY AND STABILITY OF OPERATION FOR AN INTERNAL-COMBUSTION ENGINE 审中-公开具有高重复性和内燃机运行稳定性的燃油喷射系统公开(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
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。
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公开(公告)号：US20060137658A1
公开(公告)日：2006-06-29
申请号：US11111744
申请日：2005-04-22
IPC分类号： F02M59/36
CPC分类号： F02M63/0225 , F02D41/3845 , F02M59/34 , F02M59/366
摘要： The injection system has a pump for supplying high-pressure fuel to a storage volume for supplying a number of injectors. The pump has at least one reciprocating pumping element performing a compression stroke synchronously with each fuel injection. The injection system has at least one control device for controlling the amount of fuel supplied by the pump to the storage volume, and which is controlled by a chopper control unit to modulate the fuel volume introduced into the compression chamber during the intake stroke (Ps-Pi). The delivery start instant of the pumping element during the compression stroke being unequivocally defined by the fuel volume introduced.
摘要翻译： 注射系统具有用于将高压燃料供应到用于供应多个喷射器的存储容积的泵。 泵具有与每个燃料喷射同步地执行压缩冲程的至少一个往复泵送元件。 喷射系统具有至少一个控制装置，用于控制由泵供给到储存容积的燃料量，并由斩波控制单元控制，以调节在进气冲程期间引入压缩室的燃料量（Ps- Pi）。 在压缩冲程期间泵送元件的输送开始瞬间被引入的燃料体积明确地限定。
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7.发明授权公开(公告)号：US07784711B2
公开(公告)日：2010-08-31
申请号：US12023793
申请日：2008-01-31
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。
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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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9.发明申请公开(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。
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10.发明授权公开(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
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。
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