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81.发明授权公开(公告)号：US07802584B2
公开(公告)日：2010-09-28
申请号：US11646747
申请日：2006-12-27
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。
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82.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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83.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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84.发明申请Gas feeding system for an internal combustion engine, having a presssure reducing valve controlled by a pilot pressure 失效用于内燃机的气体供给系统，具有由先导压力控制的减压阀公开(公告)号：US20050241624A1
公开(公告)日：2005-11-03
申请号：US11054558
申请日：2005-02-10
CPC分类号： F02M21/0239 , F02D19/022 , F02M21/0233 , F02M21/0242 , F02M21/0245 , G05D16/2093 , Y02T10/32
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve brings about a pressure drop which depends upon a pilot-pressure signal that is sent thereto by a pilot solenoid valve. The electrical supply to the solenoid of said pilot solenoid valve is controlled by an electronic control unit according to the signal issued by a sensor of the pressure in the rail for the purpose of regulating the pressure in the rail at a desired level, according to the operating conditions of the engine.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 减压阀产生一个压降，这取决于由先导电磁阀送到其上的先导压力信号。 根据由传感器发出的信号，由电子控制单元控制所述先导电磁阀的螺线管的电力供应，以便将轨道中的压力调节到期望的水平，根据 发动机的运行条件。
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85.发明申请Gas feeding system for an internal combustion engine, having an improved pressure reducing valve 失效一种用于内燃机的气体供给系统，具有改进的减压阀公开(公告)号：US20050241623A1
公开(公告)日：2005-11-03
申请号：US11054545
申请日：2005-02-10
CPC分类号： F02M21/0239 , F02D19/022 , F02M21/0233 , F02M21/0242 , F02M21/0245 , Y02T10/32 , Y10T137/7793
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The pressure-reducing valve has a piston member that faces a chamber set downstream of a restricted passage defined inside the body of the valve in communication between the inlet connector and the outlet connector. The piston member is pushed by thrust means towards a position in which it causes opening of an open/close element that controls the communication between said restricted passage and the inlet connector. The piston member is preferably provided with a single seal gasket that prevents leakage of gas towards the outside through the sliding coupling of the piston member within the respective guide bushing. The thrust means to which the piston member is subject may be constituted by spring means, or else by a pilot-pressure signal, in the case where it is intended to obtain a variable reduction of the pressure according to the operating conditions of the system.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 减压阀具有活塞构件，该活塞构件面对设置在限定通道的下游的室，限定通道限定在入口连接器和出口连接器之间连通的阀体内部。 活塞构件被推动装置推向其中导致打开/关闭元件的打开位置，该位置控制所述限制通道和入口连接器之间的连通。 活塞构件优选地设置有单个密封垫圈，其通过活塞构件在相应导向衬套内的滑动联接来防止气体向外部泄漏。 在旨在根据系统的操作条件获得压力可变减小的情况下，活塞构件所承受的推力装置可以由弹簧装置构成，或者由先导压力信号构成。
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86.发明申请公开(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。
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87.发明申请公开(公告)号：US20070289578A1
公开(公告)日：2007-12-20
申请号：US11646747
申请日：2006-12-27
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。
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公开(公告)号：US20070283928A1
公开(公告)日：2007-12-13
申请号：US11617629
申请日：2006-12-28
IPC分类号： F02M57/00
CPC分类号： F02M59/466 , F02M59/08 , F02M59/205 , F02M59/366 , F02M2200/16
摘要： The injection system comprises a high-pressure pump (7) with variable flowrate, having a number of pumping elements (18) actuated with reciprocating motion and provided each with a corresponding intake valve (22). An accumulation volume (28) is supplied with fuel at low pressure from an intake pipe (10) of the pump (7) through a solenoid valve (31) controlled as a function of the operating conditions of the engine (2). The accumulation volume (28) is in communication with the intake valves (22) through corresponding outlet holes (29), and the solenoid valve (31) is provided with nebulizer holes (36) such as to generate corresponding jets of fuel, each directed towards at least one of said outlet holes (29).
摘要翻译： 注射系统包括具有可变流量的高压泵（7），具有多个泵送元件（18），其以往复运动的方式被致动并设置有相应的进气阀（22）。 通过根据发动机（2）的操作条件控制的电磁阀（31），从泵（7）的进气管（10）以低压供给燃料。 蓄积体积（28）通过相应的出口孔（29）与进气阀（22）连通，并且电磁阀（31）设置有雾化器孔（36），以产生相应的燃料喷射，每个导向 朝向所述出口孔（29）中的至少一个。
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89.发明申请Connection system for a tubular rail for high-pressure fluid and a system for reducing the size of the rail 有权用于高压流体的管状轨道的连接系统和用于减小轨道尺寸的系统公开(公告)号：US20070006850A1
公开(公告)日：2007-01-11
申请号：US11365759
申请日：2006-03-01
CPC分类号： F02M55/025 , F02M2200/8069
摘要： In order to reduce the size of a tubular rail for a high-pressure fluid, the rail is obtained from a hollow body with an external diameter and an internal diameter, and has two terminal portions, each provided with an external milling to favour gripping thereof. The millings have an external diameter such as to ensure, together with a cylindrical portion of a coaxial element, a radial strength at least equal to that of the hollow body. Made between the hollow body and each cylindrical portion is a front connection. For this purpose, the cylindrical portion has a plane front surface, whilst each terminal portion has an internal milling with an internal diameter greater than the internal diameter of the hollow body so as to house the cylindrical portion and so as to form an annular shoulder. A washer of softer material is set between the annular shoulder and the front surface.
摘要翻译： 为了减小用于高压流体的管状轨道的尺寸，轨道由具有外径和内径的中空体获得，并且具有两个端部，每个末端部分设置有外铣以有助于夹持 。 研磨具有外径，以确保与同轴元件的圆柱形部分一起至少等于中空体的径向强度。 在中空体和每个圆柱形部分之间形成的是前连接。 为此，圆柱形部分具有平面前表面，而每个端部具有内径大于中空体内径的内铣，从而容纳圆柱形部分并形成环形肩部。 在环形肩部和前表面之间设置较软材料的垫圈。
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90.发明申请Gas feeding system for an internal combustion engine, having a pressure reducing valve and a pressure regulating solenoid valve 失效一种用于内燃机的气体供给系统，具有减压阀和压力调节电磁阀公开(公告)号：US20050241625A1
公开(公告)日：2005-11-03
申请号：US11054561
申请日：2005-02-10
CPC分类号： F02M21/0239 , F02M21/0209 , F02M21/0233 , F02M21/0242 , F02M21/0245 , G05D16/2093 , Y02T10/32
摘要： In a gas-supply system for internal-combustion engines, a pressure-reducing valve is set between the reservoir of the gas and a distribution manifold or rail that feeds the gas to a series of electromagnetically controlled injectors associated to the various cylinders of the engine. The reduced pressure supplied by the pressure-reducing valve is further reduced via a pressure-regulating solenoid valve, to an extent that depends upon the supply current of its solenoid. The electrical supply to the solenoid of said solenoid valve is controlled by an electronic control unit according to the signal issued by a sensor of the pressure in the rail and according to stored maps, which supply the optimal pressure value for each operating condition of the engine.
摘要翻译： 在用于内燃机的气体供应系统中，减压阀设置在气体储存器和分配歧管或轨道之间，该分配歧管或轨道将气体供给到与发动机的各个气缸相关联的一系列电磁控制的喷射器 。 由减压阀提供的减压通过压力调节电磁阀进一步减小到取决于其螺线管的供应电流的程度。 所述电磁阀的螺线管的电力供应由电子控制单元根据由传感器发出的信号在轨道中的压力和根据存储的映射来控制，该映射为发动机的每个操作条件提供最佳压力值 。
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