公开(公告)号：US07793862B2

公开(公告)日：2010-09-14

申请号：US11441641

申请日：2006-05-26

申请人： Mario Ricco ,  Raffaele Ricco ,  Annunziata Satriano ,  Sergio Stucchi ,  Onofrio De Michele

发明人： Mario Ricco ,  Raffaele Ricco ,  Annunziata Satriano ,  Sergio Stucchi ,  Onofrio De Michele

IPC分类号： F02M41/16 ,  B05B1/30 ,  F16K31/02

CPC分类号： F02M47/027 ,  F02M63/0015 ,  F02M63/004 ,  F02M63/0043 ,  F02M63/007 ,  F02M63/0071 ,  F02M63/0073 ,  F02M63/008 ,  F02M2200/04 ,  F02M2200/28 ,  F02M2547/003

摘要： A servo valve (7) for fuel control is provided with an actuator (14) and a valve body (8, 28), which is set in a fixed position and has a stem (33) that extends along a longitudinal axis (3) and defines an internal passage (26); said internal passage (26) has at least two radial channels (39), which give out into an outlet through an outer lateral surface (34) of the stem (33) and have respective first portions (43) of calibrated length and cross section; said first portions (42) are followed by respective second portions of larger diameter; the servo valve (7) is provided with an open/close element (17), which is coupled to the outer lateral surface (34) of the stem (33) substantially in a fluid-tight way and is axially movable under the action of the actuator (14) for opening/closing the internal passage (26) of the stem (33); in the closing position, the open/close element (17) is subject to a zero axial resultant force by the pressure of the fuel.

摘要翻译： 用于燃料控制的伺服阀（7）设置有致动器（14）和阀体（8,28），其被设置在固定位置并且具有沿着纵向轴线（3）延伸的杆（33） 并限定内部通道（26）; 所述内部通道（26）具有至少两个径向通道（39），所述至少两个径向通道（39）通过所述杆（33）的外侧表面（34）进入出口，并具有相应的具有校准长度和横截面的第一部分（43） ; 所述第一部分（42）之后是相应的较大直径的第二部分; 伺服阀（7）设置有开/关元件（17），其基本上以流体密封的方式联接到杆（33）的外侧表面（34），并且可在轴向移动的作用下 所述致动器（14）用于打开/关闭所述杆（33）的内部通道（26）; 在关闭位置，打开/关闭元件（17）经受燃料压力的零轴向合力。

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

IPC分类号： F02B3/00 ,  F02M51/00

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： 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。

公开(公告)号：US20090320802A1

公开(公告)日：2009-12-31

申请号：US12491656

申请日：2009-06-25

申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele

发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele

IPC分类号： F02M51/00

CPC分类号： F02M47/027 ,  F02M63/004 ,  F02M63/0042 ,  F02M63/007 ,  F02M63/008 ,  F02M2200/16 ,  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 for controlling opening/closing of a nozzle that injects fuel in an engine cylinder; the injector body houses a metering servovalve, provided with a control chamber and with an open/close element of a balanced type, axial sliding of which causes a variation in pressure in the control chamber; the metering servovalve comprises a valve body made of two pieces coaxially coupled to one another via a deformable ring, which defines also a gasket for guaranteeing fluid tightness between the two pieces and maintains in a fixed position a disk on which a calibrated restriction is made.

摘要翻译： 燃料喷射器具有喷射器主体和控制杆，该喷射器主体和控制杆可沿喷射器主体沿轴线移动，用于控制在发动机气缸中喷射燃料的喷嘴的打开/关闭; 注射器主体容纳计量伺服阀，其具有控制室和平衡型开/关元件，其轴向滑动导致控制室中的压力变化; 计量伺服阀包括由两个通过可变形环同轴联接的两个阀体构成的阀体，该可变形环还限定了用于保证两个部件之间的流体密封性的垫圈，并且在固定位置上保持在其上进行了校准限制的盘。

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。

公开(公告)号：US07458529B2

公开(公告)日：2008-12-02

申请号：US11356638

申请日：2006-02-17

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

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

IPC分类号： F16K31/02

CPC分类号： F02M63/0015 ,  F02M47/027 ,  F02M63/0031 ,  F02M63/0073 ,  F02M63/008

摘要： The metering servovalve (7) comprises a valve body (8, 30), an open/close element (45) and an electromagnet (15), and is housed in a casing (2) of the injector (1). The electromagnet (15) actuates a mobile armature (16) for a travel defined by a polar surface (19) of the core (18) of the electromagnet (15). This latter is fixed in the casing (2) by means of a threaded ring nut (40), with the interposition of at least one deformable adjustment shim (48). The ring nut (40) is screwed with a pre-set tightening torque on a thread (46) of the casing (2) so as to bring about an elastic deformation of the adjustment shim (48) and to prevent accidental unscrewing of the ring nut (40). The adjustment shim (48) is constituted by a metal ring with a cross section having a shape chosen between L, C, S, Z, and Σ.

摘要翻译： 计量伺服阀（7）包括阀体（8,30），开/关元件（45）和电磁体（15），并且被容纳在喷射器（1）的壳体（2）中。 电磁体（15）致动用于由电磁体（15）的磁芯（18）的极性表面（19）限定的行程的移动电枢（16）。 后者通过螺纹环形螺母（40）固定在壳体（2）中，插入至少一个可变形的调节垫片（48）。 环形螺母（40）在壳体（2）的螺纹（46）上以预先设定的紧固扭矩拧紧，从而引起调节垫片（48）的弹性变形并且防止意外地旋转环 螺母（40）。 调整垫片（48）由截面为L，C，S，Z和Sigma之间的形状的金属环构成。

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。

公开(公告)号：US20070289578A1

公开(公告)日：2007-12-20

申请号：US11646747

申请日：2006-12-27

申请人： Mario Ricco ,  Adriano Gorgoglione ,  Raffaele Ricco ,  Sergio Stucchi

发明人： Mario Ricco ,  Adriano Gorgoglione ,  Raffaele Ricco ,  Sergio Stucchi

IPC分类号： F02M51/06

CPC分类号： F02M63/004 ,  F02M47/027 ,  F02M51/005 ,  F02M53/04 ,  F02M61/168 ,  F02M63/0015 ,  F02M63/0019 ,  F02M63/008 ,  F02M2200/9015 ,  Y10T29/494 ,  Y10T29/49417 ,  Y10T137/0491 ,  Y10T137/5987

摘要： A fuel injector comprising a hollow body for housing a metering valve with a calibrated pipe for outlet of the fuel from a control chamber. The calibrated pipe is normally kept closed by a shutter controlled by an electromagnet comprising a magnetic core and an electric coil housed in an annular slot of the core. The coil outer cylindrical surface forms a gap with the annular slot so as to be lapped by the fuel coming out of the calibrated pipe. The coil comprises a bobbin having a pair of appendages for supporting electric supply plugs, which are englobed at least in part in a block of non-magnetic material. The bobbin has a substantially cylindrical rib, one flange adjacent to an end portion of the plugs, and another flange having a smaller diameter that forms a passage for the fuel between the calibrated pipe and the gap.

摘要翻译： 一种燃料喷射器，包括用于容纳具有用于从控制室排出燃料的校准管的计量阀的中空体。 校准管通常由电磁体控制的快门保持关闭，所述电磁体包括磁芯和容纳在芯的环形槽中的电线圈。 线圈外圆柱形表面与环形槽形成间隙，以便被从校准管出来的燃料重叠。 线圈包括具有用于支撑电源插头的一对附件的线轴，其至少部分地嵌入非磁性材料块中。 线轴具有基本上圆柱形的肋，邻近插头的端部的一个凸缘，以及具有较小直径的另一个凸缘，其形成用于校准管和间隙之间的燃料的通道。

公开(公告)号：US07219656B2

公开(公告)日：2007-05-22

申请号：US11112772

申请日：2005-04-21

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

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

IPC分类号： F02M37/04

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

摘要： A control servo valve (8) is housed inside the casing of an internal combustion engine fuel injector (1), and has an actuator (9), a control chamber (13) communicating with a fuel inlet (5) and with a fuel outlet passage (22), and a shutter (35) movable along an axis (3) by the actuator (9) between a closed position and an open position to close and open the outlet passage (22) respectively; the servo valve (8) also has a fixed axial rod (29) interposed between the actuator (9) and the control chamber (13); the outlet passage (22) comes out through an outer lateral surface (30) of the axial rod (29); and the shutter (35) is defined by a sleeve which slides axially on the outer lateral surface (30), and, in the closed position, closes the outlet passage (22) so as to be subjected to a zero axial resultant force by the pressure of the fuel.

摘要翻译： 控制伺服阀（8）容纳在内燃机燃料喷射器（1）的壳体内，并具有致动器（9），与燃料入口（5）连通的控制室（13）和燃料出口 通道（22）和通过致动器（9）在关闭位置和打开位置之间可沿着轴线（3）移动的快门（35），以分别关闭和打开出口通道（22）; 伺服阀（8）还具有置于致动器（9）和控制室（13）之间的固定轴杆（29）。 出口通道（22）通过轴向杆（29）的外侧表面（30）出来; 并且挡板（35）由在外侧表面（30）上轴向滑动的套筒限定，并且在关闭位置关闭出口通道（22），以便经受零轴向合力 燃料的压力。

公开(公告)号：US20060202144A1

公开(公告)日：2006-09-14

申请号：US11356638

申请日：2006-02-17

申请人： Mario Ricco ,  Adriano Gorgoglione ,  Sisto De Matthaeis

发明人： Mario Ricco ,  Adriano Gorgoglione ,  Sisto De Matthaeis

IPC分类号： F16K31/02

CPC分类号： F02M63/0015 ,  F02M47/027 ,  F02M63/0031 ,  F02M63/0073 ,  F02M63/008

摘要： The metering servovalve (7) comprises a valve body (8, 30), an open/close element (45) and an electromagnet (15), and is housed in a casing (2) of the injector (1). The electromagnet (15) actuates a mobile armature (16) for a travel defined by a polar surface (19) of the core (18) of the electromagnet (15). This latter is fixed in the casing (2) by means of a threaded ring nut (40), with the interposition of at least one deformable adjustment shim (48). The ring nut (40) is screwed with a pre-set tightening torque on a thread (46) of the casing (2) so as to bring about an elastic deformation of the adjustment shim (48) and to prevent accidental unscrewing of the ring nut (40). The adjustment shim (48) is constituted by a metal ring with a cross section having a shape chosen between L, C, S, Z, and Σ.

摘要翻译： 计量伺服阀（7）包括阀体（8,30），开/关元件（45）和电磁体（15），并且被容纳在喷射器（1）的壳体（2）中。 电磁体（15）致动用于由电磁体（15）的磁芯（18）的极性表面（19）限定的行程的移动电枢（16）。 后者通过螺纹环形螺母（40）固定在壳体（2）中，并插入至少一个可变形调节垫片（48）。 环形螺母（40）在壳体（2）的螺纹（46）上以预先设定的紧固扭矩拧紧，从而导致调节垫片（48）的弹性变形，并且防止意外地旋转环 螺母（40）。 调整垫片（48）由截面为L，C，S，Z和Sigma之间的形状的金属环构成。

公开(公告)号：US20060011736A1

公开(公告)日：2006-01-19

申请号：US11111002

申请日：2005-04-21

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

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

IPC分类号： F02M41/16

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。