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1. 发明授权

US07954787B2 Fuel injector with balanced metering servovalve, for an internal combustion engine 有权
标题翻译：燃油喷射器具有平衡计量伺服阀，用于内燃机
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。

2. 发明申请

US20080257989A1 Fuel Injector with Balanced Metering Servovalve, for an Internal Combustion Engine 有权
标题翻译：具有平衡计量伺服阀的燃油喷射器，用于内燃机
公开(公告)号：US20080257989A1
公开(公告)日：2008-10-23
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： F02M61/16
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闸板打开/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。

3. 发明授权

US07963270B2 Fuel injector with high stability of operation for an internal-combustion engine 有权
标题翻译：内燃机操作稳定性高的燃油喷射器
公开(公告)号：US07963270B2
公开(公告)日：2011-06-21
申请号：US12491345
申请日：2009-06-25
申请人： Mario Ricco , Sergio Stucchi , Raffaele Ricco , Onofrio De Michele , Marcello Gargano , Antonio Gravina
发明人： Mario Ricco , Sergio Stucchi , Raffaele Ricco , Onofrio De Michele , Marcello Gargano , Antonio Gravina
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 metering servo valve for controlling a rod for opening/closing a nebulizer. The servo valve has a valve body 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 separate from an armature of an electromagnet, and is slidable on an axial guide element for closing the outlet passage. The open/close element is held in the closing position by a spring acting through an intermediate body. The armature can be displaced with respect to the axial guide element between a flange of the intermediate body and a projection element of the guide member, for eliminating the rebounds of the open/close element upon closing of the solenoid valve.
摘要翻译：喷射器包括用于控制用于打开/关闭喷雾器的杆的计量伺服阀。伺服阀具有阀体，该阀体具有控制室，该控制室具有通过可轴向移动的打开/关闭元件打开/关闭的出口通道。打开/关闭元件与电磁体的电枢分离，并且可在轴向引导元件上滑动以闭合出口通道。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。电枢可以相对于中间体的凸缘与引导构件的突出元件之间的轴向引导元件移位，以在闭合电磁阀时消除打开/关闭元件的反弹。

4. 发明申请

US20080092855A1 METERING SOLENOID VALVE FOR A FUEL INJECTOR 有权
标题翻译：测量燃油喷射器的电磁阀
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。

5. 发明授权

US07513445B2 Metering solenoid valve for a fuel injector 有权
标题翻译：用于燃油喷射器的计量电磁阀
公开(公告)号：US07513445B2
公开(公告)日：2009-04-07
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。

6. 发明授权

US07380541B1 Fuel-injection system for an internal-combustion engine 有权
标题翻译：内燃机燃油喷射系统
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。

7. 发明申请

US20090032620A1 METERING SERVOVALVE AND FUEL INJECTOR FOR AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的计量服务器和燃油喷射器
公开(公告)号：US20090032620A1
公开(公告)日：2009-02-05
申请号：US12023766
申请日：2008-01-31
申请人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Antonio Gravina , Chiara Altamura , Marcello Gargano
发明人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Antonio Gravina , Chiara Altamura , Marcello Gargano
IPC分类号： F02M61/16
CPC分类号： F02M63/004 , F02M47/027 , F02M63/0015 , F02M63/0043 , F02M63/008 , F02M2200/16 , F02M2200/26 , F02M2547/003
摘要： A metering servovalve for a fuel injector of an internal combustion engine has an electro-actuator and a fixed valve body, which defines a control chamber communicating with an inlet and with an outlet channel. The outlet channel has at least one calibrated restriction and exits through the lateral surface of an axial stem, on which a sleeve slides, in a substantially fluid-tight manner, to open/close the outlet channel and so vary the pressure in the control chamber. The outlet channel is closed by an end portion of the sleeve that is elastically deformable in a radially outward direction, under the thrust of the fuel pressure, to increase the diameter at which the seal against the valve body is formed, with respect to a non-deformed state, and to generate a radial unbalancing force on the sleeve upon opening when the outlet channel is closed.
摘要翻译：用于内燃机的燃料喷射器的计量伺服阀具有电致动器和固定阀体，其限定了与入口和出口通道连通的控制室。出口通道具有至少一个校准的限制并且通过轴向杆的侧表面离开，套管以基本上流体密封的方式滑动在其上，以打开/关闭出口通道，从而改变控制室中的压力。出口通道由套筒的端部封闭，该端部可在燃料压力的推力下沿径向向外的方向弹性变形，以增加形成关于阀体的密封件的直径，变形状态，并且当出口通道关闭时在打开时在套筒上产生径向不平衡力。

8. 发明授权

US07954729B2 Metering servovalve and fuel injector for an internal combustion engine 有权
标题翻译：用于内燃机的计量伺服阀和燃油喷射器
公开(公告)号：US07954729B2
公开(公告)日：2011-06-07
申请号：US12023766
申请日：2008-01-31
申请人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Antonio Gravina , Chiara Altamura , Marcello Gargano
发明人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Antonio Gravina , Chiara Altamura , Marcello Gargano
IPC分类号： F02M41/16
CPC分类号： F02M63/004 , F02M47/027 , F02M63/0015 , F02M63/0043 , F02M63/008 , F02M2200/16 , F02M2200/26 , F02M2547/003
摘要： A metering servovalve for a fuel injector of an internal combustion engine has an electro-actuator and a fixed valve body, which defines a control chamber communicating with an inlet and with an outlet channel. The outlet channel has at least one calibrated restriction and exits through the lateral surface of an axial stem, on which a sleeve slides, in a substantially fluid-tight manner, to open/close the outlet channel and so vary the pressure in the control chamber. The outlet channel is closed by an end portion of the sleeve that is elastically deformable in a radially outward direction, under the thrust of the fuel pressure, to increase the diameter at which the seal against the valve body is formed, with respect to a non-deformed state, and to generate an axial unbalancing force on the sleeve upon opening when the outlet channel is closed.
摘要翻译：用于内燃机的燃料喷射器的计量伺服阀具有电致动器和固定阀体，其限定了与入口和出口通道连通的控制室。出口通道具有至少一个校准的限制并且通过轴向杆的侧表面离开，套管以基本上流体密封的方式滑动在其上，以打开/关闭出口通道，从而改变控制室中的压力。出口通道由套筒的端部封闭，该端部可在燃料压力的推力下沿径向向外的方向弹性变形，以增加形成关于阀体的密封件的直径，变形状态，并且当出口通道关闭时在打开时产生轴向不平衡力。

9. 发明申请

US20070251498A1 Fuel injector with adjustable-metering servo valve for an internal-combustion engine 有权
标题翻译：燃油喷射器，内置可调式计量伺服阀
公开(公告)号：US20070251498A1
公开(公告)日：2007-11-01
申请号：US11784946
申请日：2007-04-10
申请人： Mario Ricco , Adriano Gorgoglione , Raffaele Ricco , Antonio Gravina
发明人： Mario Ricco , Adriano Gorgoglione , Raffaele Ricco , Antonio Gravina
IPC分类号： F02M59/46
CPC分类号： F02M63/004 , F02M47/027 , F02M61/166 , F02M61/167 , F02M61/168 , F02M63/0015 , F02M63/0017 , F02M63/008 , F02M63/0225 , F02M2200/8053 , F02M2200/8076 , F02M2200/8092 , F02M2547/003
摘要： An injector with an adjustable-metering servo valve is provided. The injector has a shutter actuated by an armature of an electromagnet. The armature is mobile for an opening stroke defined by a surface of the core of the electromagnet, which is fixed in the casing by a ring nut and a hollow support of the core. The hollow support has a first contact surface that acts on a flange of the core. Set between the surface and a shoulder of the casing is a shim. An annular projection, having a second contact surface, is set between the surface and a shoulder of the casing. The second contact surface is contained at least in part in the area corresponding to the first contact surface so that the stroke of the armature is adjusted by plastic deformation of the shim or of the surface of the core.
摘要翻译：提供一个带有可调计量伺服阀的进样器。喷射器具有由电磁体的电枢驱动的快门。电枢可移动，用于由电磁体的芯的表面限定的开口行程，电动机的芯体通过环形螺母和芯的中空支撑件固定在壳体中。中空支撑件具有作用在芯的凸缘上的第一接触表面。套管的表面和肩膀之间是垫片。具有第二接触表面的环形突起被设置在壳体的表面和肩部之间。第二接触表面至少部分地包含在对应于第一接触表面的区域中，使得通过垫片或芯的表面的塑性变形来调节电枢的行程。

10. 发明授权

US07240859B2 Fuel-injection system for an internal-combustion engine and corresponding method for controlling fuel injection 有权
标题翻译：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
申请人： Mario Ricco , Sisto Luigi De Matthaeis , Antonio Gravina , Sergio Stucchi
发明人： Mario Ricco , Sisto Luigi De Matthaeis , Antonio Gravina , Sergio Stucchi
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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