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公开(公告)号：US5608368A
公开(公告)日：1997-03-04
申请号：US365587
申请日：1994-12-28
申请人： Mario Ricco , Giovanni Bruni
发明人： Mario Ricco , Giovanni Bruni
CPC分类号： H01F7/1638 , F02M47/027 , F02M63/0019 , F02M63/0036 , H01F3/08 , H01F7/13 , F02M2200/9092 , F02M2547/003
摘要： The metering valve is controlled by an electromagnet having a fixed core, aoil, and an armature. The core is formed by pressing and subsequently sintering a mixture of powdered ferrous material and an epoxy binder; and presents a low magnetic hysteresis and low parasitic currents, so that, for a given energizing current, a greater magnetic force is achieved and more rapidly, and, for a given magnetic force or maximum operating frequency, the core and/or coil may be made smaller.
摘要翻译： 计量阀由具有固定铁芯，线圈和电枢的电磁体控制。 核心是通过压制和随后烧结铁粉材料和环氧树脂粘合剂的混合物而形成的; 并且呈现低磁滞和低寄生电流，使得对于给定的通电电流，实现更大的磁力并且更快地获得，并且对于给定的磁力或最大工作频率，芯和/或线圈可以是 做得更小。
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82.发明授权
公开(公告)号：US5154350A
公开(公告)日：1992-10-13
申请号：US678807
申请日：1991-04-01
申请人： Francesco P. Ausiello , Mario Ricco
发明人： Francesco P. Ausiello , Mario Ricco
CPC分类号： F02M47/027 , F02M63/0036
摘要： The subject of the invention is an improvement in the pilot valve which is adapted to control the passage of fuel through a discharge aperture which communicates with a control chamber with which the device is provided; fuel is supplied under pressure into this control chamber and is discharged through the first mentioned discharge aperture to control the opening of a shutter needle with which the device is provided for the purpose of injecting a suitable quantity of fuel through at least one injection orifice. According to this improvement the armature of the pilot valve substantially comprises a rod which traverses an axial hole in the core of an electromagnet. The first end of the rod is fixed to the armature. A stop member, the position of which is adjustable with respect to the body of the device, is adapted to constitute an abutment for the second end of the rod. A ball is interposed between this second end and the stop member. A threaded ring nut presses against the elongate body housing the needle so as to fix the valve body and resist the force on the valve body exerted by the fuel under pressure.
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公开(公告)号：US4997133A
公开(公告)日：1991-03-05
申请号：US476127
申请日：1990-02-05
CPC分类号： F02M47/027 , Y10S239/90
摘要： An electromagnetically-controlled fuel injection valve for diesel engines includes an electromagnetic metering valve which controls communication between a control chamber supplied with fuel under pressure through an inlet hole, and a discharge hole. The solenoid metering valve includes a ball obturator movable in a cavity of the body defined by two annular valve seats of which the first defines the discharge hole and the second communicates with the inlet hole. The cavity is in communication with the control chamber through lateral passages. The ball obturator is kept in a closed position against the second seat by means of an electromagnetically-operated axial push rod.
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公开(公告)号：US4905907A
公开(公告)日：1990-03-06
申请号：US236502
申请日：1988-08-25
申请人： Mario Ricco
发明人： Mario Ricco
CPC分类号： H01F7/1638 , F02M47/027 , F02M63/0075 , F02B3/06 , F02M2200/07 , F02M2200/08
摘要： An electromagnetically-controlled fuel injection valve for diesel engines includes a body carrying an upper electromagnetic metering valve including a body carrying an excitation coil and an obturator carried by an armature and adapted to control communication between the control chamber of the injection valve and a fuel discharge hole. A floating annular element of non-magnetic material is interposed axially between the armature and the body of the metering valve.
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85.发明授权Fuel injector with balanced metering servovalve for an internal-combustion engine 有权燃油喷射器，配有内燃机的平衡计量伺服阀公开(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。
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86.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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87.发明申请公开(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
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。
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公开(公告)号：US07748644B2
公开(公告)日：2010-07-06
申请号：US11111002
申请日：2005-04-21
CPC分类号： F02M63/004 , F02M47/027 , F02M55/004 , F02M61/168 , F02M63/008 , F02M2200/16 , F02M2200/28 , F02M2547/003
摘要： A fuel injector for an internal-combustion engine houses, in a hollow injector body of its own, an injection-control valve, the valve body of which delimits, together with the injector body, an annular chamber designed to receive a fuel under pressure, and insulated in a fluid-tight way by a seal member carried by the valve body and made of plastic material.
摘要翻译： 用于内燃机的燃料喷射器在其本身的空心喷射器主体中容纳喷射控制阀，该喷射控制阀与喷射器主体一起限定设计成在压力下接收燃料的环形室， 并通过由阀体承载并由塑料材料制成的密封构件以流体密封的方式绝缘。
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89.发明申请公开(公告)号：US20090321542A1
公开(公告)日：2009-12-31
申请号：US12491938
申请日：2009-06-25
IPC分类号： F02M51/06
CPC分类号： F02M63/004 , F02M47/027 , F02M63/0042 , F02M63/007 , F02M63/008 , F02M2200/16 , F02M2200/27 , F02M2200/28 , F02M2547/003
摘要： A fuel injector has an injector body and a control rod, which is movable in the injector body along an axis to control the opening/closing of a nozzle that injects fuel into a cylinder of the engine; the injector body houses a metering servovalve having a control chamber, which is axially delimited by the control rod and communicates with an inlet and with a discharge channel; the metering servovalve is provided with a shutter, which slides axially on an axial guide, from which the discharge channel exits, to open and close the discharge channel and, in consequence, vary the pressure in the control chamber; the discharge channel has at least two restrictions having calibrated passage sections and arranged in series with each other to divide the pressure drop along the discharge channel.
摘要翻译： 燃料喷射器具有喷射器主体和控制杆，其可以沿着轴线在喷射器主体中移动，以控制将燃料喷射到发动机气缸中的喷嘴的打开/关闭; 注射器主体容纳具有控制室的计量伺服阀，该控制室由控制杆轴向限定并与入口和排放通道连通; 计量伺服阀设有挡板，其在轴向引导件上轴向滑动，排放通道从该导向器滑出，以打开和关闭排放通道，并因此改变控制室中的压力; 排出通道具有至少两个具有校准通道部分的限制并且彼此串联布置以沿着排出通道分开压降。
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90.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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