公开(公告)号：US5532526A

公开(公告)日：1996-07-02

申请号：US430869

申请日：1995-04-28

申请人： Mario Ricco ,  Nicola Pacucci ,  Maurizio Abate ,  Eugenio Faggioli

发明人： Mario Ricco ,  Nicola Pacucci ,  Maurizio Abate ,  Eugenio Faggioli

IPC分类号： F02D41/20 ,  H01F7/18 ,  H01H47/04 ,  H01H47/00

CPC分类号： H01F7/1816 ,  F02D41/20 ,  H01H47/043 ,  F02D2041/2006 ,  F02D2041/2027 ,  F02D2041/2034

摘要： A control circuit for supplying a load with current having a high-amplitudeortion with a rapid leading edge, and a lower-amplitude portion. The circuit is input-connected to a low-voltage supply source, and comprises a number of actuator circuits parallel-connected between the input terminals and each including a capacitor and a load. Each actuator circuit also comprises a first controlled switch between the respective load and a reference line, for enabling energy supply and storage by the respective load. A second controlled switch is provided between the capacitor line and the load line, for rapidly discharging the capacitors into the load selected by the first switch and recirculating the load current, or for charging the capacitors with the recirculated load current.

摘要翻译： 一种用于向负载提供具有快速前沿的高幅度部分的电流和较低振幅部分的控制电路。 该电路输入连接到低压电源，并且包括并联在输入端子之间的各个致动器电路，并且每个致动器电路包括电容器和负载。 每个致动器电路还包括在相应的负载和参考线之间的第一受控开关，用于使相应负载能量供应和存储。 在电容器线路和负载线路之间提供第二受控开关，用于将电容器快速放电到由第一开关选择的负载中并再循环负载电流，或者用再循环负载电流对电容器充电。

公开(公告)号：US08020834B2

公开(公告)日：2011-09-20

申请号：US12271349

申请日：2008-11-14

申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Sergio Stucchi

发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Sergio Stucchi

IPC分类号： F16K31/02

CPC分类号： F02M61/168 ,  F02M47/027 ,  F02M51/005 ,  F02M63/0015 ,  F02M2200/16 ,  F02M2200/9015 ,  Y10T29/49009 ,  Y10T29/494

摘要： A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing the open/close element; and a solenoid actuator, which can be actuated for exerting an action countering the thrust exerted by the elastic element. The solenoid actuator is formed by a monolithic assembly obtained in a mould, in which there is injected, on a core and a coil coupled to one another, a plastic material, which defines, once it has solidified, a body for insulation of the core from the injector body and which forms, once it has solidified, a monolithic assembly with the core and the coil.

摘要翻译： 用于内燃机的燃料喷射器包括喷射器主体和喷射控制阀，该喷射器主体和喷射控制阀又包括开/关元件; 用于推动打开/关闭元件的弹性止推元件; 以及螺线管致动器，其可被致动以发挥抵抗由弹性元件施加的推力的作用。 螺线管致动器由在模具中获得的整体组件形成，其中注入在芯体和彼此联接的线圈上，塑料材料一旦固化就限定了用于绝缘芯体的主体 一旦它已经凝固，从注射器本体形成一个具有芯和线圈的整体式组件。

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。

公开(公告)号：US07552909B2

公开(公告)日：2009-06-30

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： F16K31/02

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。

公开(公告)号：US07527210B2

公开(公告)日：2009-05-05

申请号：US11616695

申请日：2006-12-27

申请人： Mario Ricco ,  Adriano Gorgoglione ,  Onofrio De Michele ,  Domenico Lepore

发明人： Mario Ricco ,  Adriano Gorgoglione ,  Onofrio De Michele ,  Domenico Lepore

IPC分类号： F02M41/16 ,  B05B1/30

CPC分类号： F02M61/20 ,  F02M47/027

摘要： The fuel injector comprises a hollow casing, fixed on which is a nozzle having a nebulizer for the fuel under pressure, a needle axially mobile for opening and closing the nebulizer by means of a first end thereof, and a control rod, substantially coaxial with the needle and in direct engagement therewith. The needle is normally pushed into a closing position of the nozzle by the fuel under pressure acting on the rod, aided by a compression spring, which acts on the needle through a sleeve that is in axial engagement with a portion of the rod. The sleeve further comprises a surface designed to engage at the front and directly one end of the needle. The spring engages another surface of the sleeve so as to transmit its action directly onto the needle.

摘要翻译： 燃料喷射器包括中空壳体，固定在其上，喷嘴具有用于压力下的燃料的喷雾器，可轴向移动的针头，用于通过其第一端打开和关闭雾化器;以及控制杆，其基本上与 针并与其直接接合。 针通常被作用在杆上的压力下的燃料压入喷嘴的关闭位置，由压缩弹簧辅助，压缩弹簧通过与棒的一部分轴向接合的套筒作用在针上。 套筒还包括设计成接合在针的前部和直接一端的表面。 弹簧接合套筒的另一个表面，以便将其作用直接传递到针上。

公开(公告)号：US07509943B2

公开(公告)日：2009-03-31

申请号：US11937625

申请日：2007-11-09

申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Annunziata Anna Satriano ,  Onofrio De Michele

发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Annunziata Anna Satriano ,  Onofrio De Michele

IPC分类号： F02M55/02 ,  F02M63/02

CPC分类号： F02M63/0285 ,  F02M47/027 ,  F02M55/02 ,  F02M55/025 ,  F02M63/008 ,  F02M63/0225 ,  F02M2547/003

摘要： A fuel-injection system (1, 1′, 1″) for an internal-combustion engine (2), of the type provided with compressor mechanism (4) for making available the fuel at a high pressure to an storage volume (7), and a plurality of injectors (8, 8″) fluidically connected to the storage volume (7) for taking in the fuel from the storage volume (7) and injecting it into respective combustion chambers (12) of the engine (2). The compressor mechanism (4) advantageously generates at least two distinct delivery lines (14), which are connected to respective distinct fractions (16) of the storage volume (7).

摘要翻译： 一种用于内燃机（2）的燃料喷射系统（1,1'，1“），该燃料喷射系统具有压缩机构（4），该压缩机构用于将高压燃料提供给存储容积（7 ）和流体连接到存储容积（7）的多个喷射器（8,8“），用于从存储容积（7）吸入燃料并将其注入发动机（2）的相应的燃烧室（12） ）。 压缩机构（4）有利地产生至少两个不同的输送管线（14），其连接到存储容积（7）的相应不同部分（16）。

公开(公告)号：US07461636B2

公开(公告)日：2008-12-09

申请号：US11356313

申请日：2006-02-17

申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Raffaele Ricco ,  Alfonso Di Meo

发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Raffaele Ricco ,  Alfonso Di Meo

IPC分类号： F02M55/02 ,  F02M69/46

CPC分类号： F02M55/025 ,  F02M55/005

摘要： The device includes a connection tube in communication with a hole of a rail for fuel under pressure, the tube being provided with an end swelling. The device has a first threaded element fixed to the rail in a position corresponding to the hole and a second threaded element designed to engage the first threaded element. Removably set between the hole and the swelling is a seal element designed to form a seal both with the hole and with the swelling. The seal element is a body of revolution equipped with a passage along a pre-set axis, and includes two end noses designed to be inserted in the swelling and in the hole, respectively, and two tapered seal stretches.

摘要翻译： 该装置包括与用于燃料的压力轨道的孔连通的连接管，该管设置有端部膨胀。 该装置具有固定到轨道的第一螺纹元件，该第一螺纹元件处于与该孔相对应的位置，第二螺纹元件被设计成接合第一螺纹元件。 可移动地设置在孔和膨胀之间的密封元件是设计成与孔和膨胀形成密封件的密封元件。 密封元件是装备有沿着预设轴线的通道的旋转体，并且包括设计成分别插入膨胀和孔中的两个端部鼻部和两个锥形密封件延伸部。

公开(公告)号：US07444988B2

公开(公告)日：2008-11-04

申请号：US11113502

申请日：2005-04-25

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

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

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。

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。

公开(公告)号：US07299998B2

公开(公告)日：2007-11-27

申请号：US11171658

申请日：2005-06-30

申请人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Alfonso Di Meo ,  Sergio Stucchi

发明人： Mario Ricco ,  Sisto Luigi De Matthaeis ,  Adriano Gorgoglione ,  Alfonso Di Meo ,  Sergio Stucchi

IPC分类号： F02M41/16

CPC分类号： F02M47/027 ,  F02M61/12 ,  F02M63/0015 ,  F02M63/004 ,  F02M63/0043 ,  F02M63/007 ,  F02M63/0071 ,  F02M63/0073 ,  F02M63/008 ,  F02M2200/28 ,  F02M2547/003

摘要： An internal combustion engine fuel injector (1) has a rod (10) movable along an axis (3) to open/close a nozzle, and a servovalve (7) having a control chamber (23) with a discharge passage (26) which is opened/closed by a shutter (17) movable axially under the control of an electro-actuator (14); the servovalve (7) also has a fixed axial rod (33) having an outer lateral surface (34) through which the discharge passage (26) comes out; the shutter (17) is fitted to the axial rod (33) to slide axially in substantially fluidtight manner, and, when closing the discharge passage (26), is subjected to substantially zero resultant axial pressure by the fuel; and the control chamber (23) is bounded radially by a tubular portion (8) formed in one piece with said axial rod (33).

摘要翻译： 一种内燃机燃料喷射器（1）具有可沿轴线（3）移动以打开/关闭喷嘴的杆（10）和具有带有排放通道（26）的控制室（23）的伺服阀（7） 由在电致动器（14）的控制下可轴向移动的快门（17）打开/关闭; 伺服阀（7）还具有固定的轴向杆（33），其具有外侧表面（34），排出通道（26）从该外侧表面出来; 闸板17被安装到轴杆33上，以基本上流体密封的方式轴向滑动，并且当关闭排放通道26时，由燃料施加基本上为零的轴向压力; 并且所述控制室（23）由与所述轴向杆（33）一体形成的管状部分（8）沿径向限制。