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公开(公告)号：US6112727A
公开(公告)日：2000-09-05
申请号：US353846
申请日：1999-07-15
申请人： Marcello Cristiani , Massimo Lolli
发明人： Marcello Cristiani , Massimo Lolli
CPC分类号： F02M59/442 , F02M37/0052 , F02M63/0225
摘要： A unit for supplying fuel to an endothermal engine, the unit comprising a manifold to which injectors are connected in order to supply fuel to the engine, a high pressure pumping device which has its output connected to the manifold and its intake connected to an extraction pump adapted to transfer fuel from the storage tank to this device and a pressure regulator adapted to regulate the pressure of the fuel supplied to the pumping device by supplying surplus fuel along a bleed duct communicating with the tank, the pumping device having at least one piston moving axially within a respective cylinder in order to define a variable volume pumping chamber. The supply unit has a leakage channel provided with a first mouth communicating with the cylinder below the pumping chamber and a second mouth communicating with the bleed duct, and an ejector disposed in the bleed duct at the location of the second mouth in order to recall along the leakage channel fuel leaking from the pumping chamber between the piston and the cylinder.
摘要翻译： 用于向吸热发动机供应燃料的单元，该单元包括连接注射器以将燃料连接到发动机的歧管，高压泵送装置，其输出连接到歧管，其进气口连接到抽气泵 适于将燃料从储罐转移到该装置;以及压力调节器，其适于通过沿着与罐连通的排放管道供应多余的燃料来调节供给到所述泵送装置的燃料的压力，所述泵送装置具有至少一个活塞 轴向地在相应的气缸内，以便限定可变体积泵送室。 所述供应单元具有泄漏通道，所述泄漏通道设置有与所述泵送室下方的气缸连通的第一口和与所述排出管连通的第二口，以及在所述排出管中在所述第二口的位置处设置的喷射器，以便回忆 泄漏通道燃料从活塞和气缸之间的泵送室泄漏。
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公开(公告)号：US5328102A
公开(公告)日：1994-07-12
申请号：US102489
申请日：1993-08-05
CPC分类号： F02M51/0667 , F02M61/168
摘要： A valve substantially comprising a first tubular body having a wall of substantially constant thickness in which is formed at least a pair of openings; a second annular body incorporating an electromagnet and presenting a pair of radial projections, and a block forming a seat for an electric connecting element connected to the electromagnet, the projections being designed to fit inside the openings in the first body; and a third body defining an axial sleeve designed to fit inside the electromagnet for forming a core, and an annular collar projecting radially from the sleeve and designed to fit inside the wall of the first body.
摘要翻译： 一种阀，其基本上包括具有基本上恒定厚度的壁的第一管状体，其中至少形成有一对开口; 包括电磁体并呈现一对径向突起的第二环形体，以及形成用于连接到所述电磁体的电连接元件的座的块，所述突起被设计成装配在所述第一体中的所述开口内; 以及限定轴向套筒的第三主体，所述第三主体被设计成装配在所述电磁体内部以形成芯部;以及环形套环，其从所述套筒径向伸出并设计成配合在所述第一主体的壁内。
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13.发明授权
公开(公告)号：US4778112A
公开(公告)日：1988-10-18
申请号：US15973
申请日：1987-02-18
CPC分类号： F02M51/0625 , F02M51/0653 , F02M51/0678 , H01F7/1607 , H01F7/1638
摘要： A valve having a body inside which slides a plugging member integral with a keeper forming part of a magnetic circuit, which circuit comprises the walls of the aforementioned body, and a core located inside the same. The body presents a bottom wall having a hole through which slides the aforementioned plugging member, and the keeper presents an annular projection located on one side in relation to the aforementioned wall and having an outside diameter greater than that of the aforementioned hole, so as to provide for substantially axial magnetic flow lines between the aforementioned bottom wall and the keeper.
摘要翻译： 具有主体的阀，其内部滑动与形成磁路的一部分的保持器一体的堵塞构件，该电路包括上述主体的壁和位于其内的芯。 主体具有一个底壁，该底壁具有一个孔，滑动上述堵塞件和保持件，相对于上述壁呈现位于一侧的环形凸起，其外径大于上述孔的外径，从而 提供在上述底壁和保持器之间的基本上轴向的磁流线。
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14.发明授权公开(公告)号：US07850100B2
公开(公告)日：2010-12-14
申请号：US12001998
申请日：2007-12-12
IPC分类号： F02M51/00
CPC分类号： F02M51/0614 , F02M51/0671 , F02M61/188 , Y10S239/19 , Y10S239/90 , Y10T29/4902
摘要： An embodiment of a fuel injector comprising: an injection valve provided with a mobile needle for regulating the fuel flow through an injection nozzle; a supporting body having a tubular shaft and displaying a feeding channel which ends with the injection valve; and an electromagnetic actuator comprising a spring which tends to maintain the needle in a closing position and an electromagnet, which comprises a coil arranged outside the supporting body, a fixed magnetic armature arranged within the supporting body, and a keeper which is arranged within the supporting body, is magnetically attracted by the magnetic armature against the bias of the spring, and is mechanically connected to the needle; the coil displaying a toroidal shape having an internal annular surface, which is directly in contact with an external surface of the supporting body without the interposition of any intermediate element.
摘要翻译： 一种燃料喷射器的实施例，包括：喷射阀，其设置有用于调节通过喷嘴的燃料流的移动针; 支撑体，其具有管状轴并且显示与所述喷射阀结合的供给通道; 以及电磁致动器，其包括倾向于将针保持在关闭位置的弹簧和包括布置在支撑体外部的线圈的电磁体，布置在支撑体内的固定磁性衔铁，以及配置在支撑体内的保持器 主体被磁性衔铁抵抗弹簧的偏压磁吸引，并机械地连接到针上; 该线圈显示具有内部环形表面的环形形状，其直接与支撑体的外表面接触而不插入任何中间元件。
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公开(公告)号：US07506827B2
公开(公告)日：2009-03-24
申请号：US10546063
申请日：2004-02-20
IPC分类号： F02M51/00
CPC分类号： F02M51/0671 , F02M55/004 , F02M61/162 , F02M2200/306
摘要： A fuel injector (1) having an injection valve (7) with a movable pin (15); and an actuator (5) for moving the pin (15) between a closed position and an open position; the actuator (5) has a movable armature (10), and an antirebound device (20) interposed between the movable armature (10) and the pin (15) to connect the movable armature (10) and the pin (15) mechanically; the antirebound device (20) has a deformable elastic plate (32; 45; 48) which is annular in shape, is connected centrally to the pin (15), and is connected laterally to the armature (10) to transmit at least the closing movement of the injection valve (7) from the armature 15 (10) to the pin (15).
摘要翻译： 一种燃料喷射器（1），其具有带有可动销（15）的喷射阀（7）。 以及用于使销（15）在关闭位置和打开位置之间移动的致动器（5） 所述致动器（5）具有可移动衔铁（10）和插入在所述可移动衔铁（10）和所述销（15）之间的机械地连接所述可动电枢（10）和所述销（15）的反向引导装置（20） 所述反引导装置（20）具有环形形状的可变形弹性板（32; 45; 48），其中心连接到所述销（15），并且横向连接到所述电枢（10）以至少传递所述闭合 注射阀（7）从电枢15（10）移动到销（15）。
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公开(公告)号：US20060060674A1
公开(公告)日：2006-03-23
申请号：US11222225
申请日：2005-09-09
IPC分类号： F02M61/10
CPC分类号： F02M61/162 , F02M61/047 , F02M61/12 , F02M61/18 , F02M61/182 , F02M61/1826 , F02M61/188 , Y10S239/90
摘要： A fuel injector provided with an injection valve comprising a mobile plunger; an injection jet having a plurality of first through-holes made starting from a chamber arranged downstream from the injection valve; a supporting body having a tubular shape and comprising a supply channel; and a sealing body, in which a valve seat of the injection valve is defined and the injection jet is provided; the sealing body is monolithic and has a disc-shaped plug member passed through by the injection jet, and a guide member, which rises up from the plug member, is tubular in shape, receives within it the plunger and has an external diameter smaller than the internal diameter of the supply channel, so as to define an external annular channel for the fuel; in the lower part of the guide member there are provided a number of second through-holes which open into the valve seat.
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17.发明授权Electromagnetic fuel injector for an internal combustion engine with a monolithic tubular member 失效具有整体式管状构件的内燃机的电磁燃料喷射器公开(公告)号：US06932284B2
公开(公告)日：2005-08-23
申请号：US10732810
申请日：2003-12-11
申请人： Marcello Cristiani , Mirco Vignoli
发明人： Marcello Cristiani , Mirco Vignoli
CPC分类号： F02M61/166 , F02M51/0664 , F02M51/0667 , F02M61/16 , Y10S239/90
摘要： An electromagnetic fuel injector for an internal combustion engine, comprising a main body having a central cylindrical cavity adapted to act as a duct for the fuel, a valve which is disposed to close an end of the central cylindrical cavity and is provided with a moving shutter, an electromagnetic actuator which is provided with a coil, a fixed armature, and a moving armature mechanically connected to the shutter and adapted to be magnetically attracted by the fixed armature against the action of a spring, and a monolithic tubular member which is disposed coaxially within the central cylindrical cavity and houses the fixed armature and the moving armature.
摘要翻译： 一种用于内燃机的电磁燃料喷射器，包括主体，其具有适于作为燃料管道的中心圆柱形空腔;阀，其设置成封闭中心圆柱形空腔的端部，并设置有活动快门 ，电磁致动器，其具有线圈，固定电枢和移动电枢，机械地连接到闸门并适于克服弹簧的作用被固定电枢磁力吸引，同轴地设置的整体式管状构件 在中心圆柱形腔内，并容纳固定电枢和移动电枢。
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公开(公告)号：US06354272B1
公开(公告)日：2002-03-12
申请号：US09354439
申请日：1999-07-16
申请人： Marcello Cristiani , Massimo Lolli
发明人： Marcello Cristiani , Massimo Lolli
IPC分类号： F02M4100
CPC分类号： F02M59/442 , F02M37/0052 , F02M55/00 , F02M59/366 , F02M63/0225
摘要： A high pressure pumping device having a body provided with a cylindrical seat and a piston mounted in an axially sliding manner in the seat in order to form a variable volume pumping chamber; the chamber being in communication with an intake duct, via which it is supplied with a fluid, and with a delivery duct along which there is disposed a one-way non-return valve in order to allow the fluid to flow from the pumping chamber along this delivery duct; the pumping device further comprising an electrovalve whose opening and closing is controlled, disposed along the intake duct in order to enable the fluid to flow from and to the pumping chamber, and a control unit adapted to control the opening of the electrovalve in order to cause a controlled quantity of fluid to flow back from the chamber to the intake duct, enabling the regulation of the quantity of fluid pumped, at high pressure, along the delivery duct.
摘要翻译： 一种高压泵送装置，其具有设置有圆柱形座椅的主体和以轴向滑动方式安装在座椅中以便形成可变容积泵送室的活塞; 该室与进气管道连通，通过该进气管道供应流体，并且具有输送管道，沿着该输送管道设置有单向止回阀，以允许流体从泵送室沿着流动 该输送管道; 所述泵送装置还包括电动阀，所述电阀的开闭被控制，沿所述进气管道设置，以使流体能够从所述泵送室流出;以及控制单元，其适于控制所述电阀的打开以便引起 控制量的流体从腔室返回到进气管道，使得能够调节沿着输送管道在高压下泵送的流体的量。
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19.发明授权
公开(公告)号：US5263649A
公开(公告)日：1993-11-23
申请号：US959715
申请日：1992-10-13
CPC分类号： F02M51/0667 , F02M51/0614 , F02M61/168
摘要： The valve substantially comprises a ferromagnet element provided with a flat bottom wall in which is formed an injection orifice, a first annular wall, adapted to house a movable shutter member and at least partially house an armature fixed to the member itself, and a second annular wall coaxial with the first and adapted to house the lower end of a core and a sealing ring interposed between the wall and the core; the valve further includes a tubular casing of sheet metal adapted to contain an electromagnet and the core, and the lower end of the casing overlying at least a part of the wall of the ferromagnet element and being fixed to this by laser welding.
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20.发明授权Fuel atomisation and metering valve for a fuel injection device of an internal combustion engine 失效用于内燃机的燃料喷射装置的燃料雾化和计量阀
公开(公告)号：US4834295A
公开(公告)日：1989-05-30
申请号：US197709
申请日：1988-05-23
CPC分类号： F02M51/005 , F02M51/0614 , F02M51/0678 , F02M61/168 , H01F7/1607
摘要： The valve comprises a casing, a shutter member axially movable within it, a core of magnetic material also disposed within the casing, an armature fixed to the shutter member and an excitation winding disposed within a cavity of annular form defined between the casing, the core and the armature; a predetermined clearance is left between the surfaces which delimit the excitation winding and the surfaces of the said cavity in such a way as to form channels for the passage of fuel to allow this to wash completely over the surfaces which delimit the excitation winding.
摘要翻译： 阀包括壳体，在其内可轴向移动的活门构件，还设置在壳体内的磁性材料芯，固定到活门构件的电枢和设置在壳体内的环形形式的空腔内的励磁绕组，芯体 和电枢; 在限定激励绕组的表面和所述腔的表面之间留有预定的间隙，以形成用于燃料通过的通道，以允许其在限定激励绕组的表面上完全洗涤。
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