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1.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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2.发明授权公开(公告)号：US06467441B2
公开(公告)日：2002-10-22
申请号：US09887948
申请日：2001-06-22
IPC分类号： F01L904
CPC分类号： F01L9/04 , F01L2009/0409 , H01F7/081 , H01F7/145
摘要： An electromagnetic actuator for the actuation of the intake or exhaust valves of an internal combustion engine in which an oscillating arm has a first end hinged on a support frame secured to the engine head and a second end in abutment on the upper end of the stem of the intake or exhaust valve; two electromagnets being provided in order to move, on command, the oscillating arm in order axially to displace the valve between a closed position and a position of maximum opening, the oscillating arm comprising a central plate positioned in the space between the polar heads of the two electromagnets, a cylindrical tubular member rigid with a lateral edge of the central plate and a projection extending in a projecting manner from the central plate on the side opposite the cylindrical tubular member, the central plate being formed by a pack of sheets of ferromagnetic material stacked on one another and seam welded on the outer lateral surface of the cylindrical tubular member and by a stiffening rib welded to the pack of sheets on the side opposite the cylindrical tubular member.
摘要翻译： 一种用于致动内燃机的进气门或排气门的电磁致动器，其中摆动臂具有铰链在固定到发动机头上的支撑框架上的第一端，并且第二端邻接在杆的上端 进气阀或排气阀; 提供两个电磁体，以便根据命令移动摆动臂以轴向移动以在闭合位置和最大开口位置之间移动阀，所述摆动臂包括定位在第二极性极性头部之间的空间中的中心板 两个电磁体，具有中心板的侧边缘刚性的圆柱形管状构件和从中心板在与圆柱形管状构件相对的一侧以突出方式延伸的突起，该中心板由一堆铁磁材料片形成 彼此堆叠并且缝合在圆柱形管状构件的外侧表面上并且通过焊接到与圆柱形管状构件相对的一侧上的片材组的加强肋。
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3.发明授权公开(公告)号：US06427649B1
公开(公告)日：2002-08-06
申请号：US09666336
申请日：2000-09-21
IPC分类号： F01L904
CPC分类号： F01L9/04 , F01L2009/0409
摘要： Electromagnetic actuator of an improved type for controlling the valves for induction or exhaust of an internal-combustion engine, wherein an oscillating arm has a first end which is pivoted on a support frame which is secured to the head of the engine, and a second end which abuts the upper end of the stem of the valve for induction or exhaust; two electromagnets being provided to move the oscillating arm by command, such as to displace the said valve axially, between a position of closure and a position of maximum opening; the frame being pivoted on the head of the engine, such as being able to rotate around an axis of rotation, which is perpendicular to the axis of movement of the valve for induction or exhaust, and the electromagnetic actuator also being provided with a device to regulate the position of the frame relative to the head, which device can rotate the said frame by command around the said axis of rotation, such as to be able to maintain at a pre-determined value the mechanical play which exists between the second end of the oscillating arm, and the upper end of the stem of the valve.
摘要翻译： 一种用于控制用于内燃机的感应或排气的阀的改进型的电磁致动器，其中摆动臂具有第一端，该第一端在固定到发动机的头部的支撑框架上枢转，第二端 其邻接用于感应或排气的阀杆的上端; 两个电磁铁被提供以通过命令来移动摆动臂，例如在所述闭合位置和最大开口位置之间轴向移动所述阀; 框架在发动机的头部上枢转，例如能够围绕垂直于用于感应或排气的阀的运动轴线的旋转轴线旋转，并且电磁致动器还设置有设备 调节框架相对于头部的位置，该装置可以围绕所述旋转轴线通过命令旋转所述框架，以便能够将预定值保持在第二端之间存在的机械游隙 摆动臂和阀杆的上端。
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公开(公告)号：US08496192B2
公开(公告)日：2013-07-30
申请号：US13047010
申请日：2011-03-14
CPC分类号： F02M51/0653 , F02B1/08 , F02M51/0621 , F02M61/08 , F02M61/12 , F02M61/161 , F02M61/162 , F02M61/205 , F02M63/0019 , F02M63/0021 , F02M63/0075 , F02M2200/16 , F02M2200/26 , F02M2200/8092
摘要： A fuel injector provided with: an injection valve comprising an injection nozzle; a mobile needle for regulating the fuel flow through the injection valve and ending with a shutting head, which engages a valve seat of the injection valve, is arranged externally with respect to injection valve and presents a predetermined sealing diameter; an actuator for displacing the needle between a closing position and an opening position of the injection valve; a closing spring which tends to maintain the needle in the closing position of the injection valve pushing the shutting head against the valve seat itself in a sense contrary to the feeding sense of the fuel; and a supporting body having a tubular shape and presenting a feeding channel within which a needle is arranged; the needle, at an opposite end of the shutting head, is coupled to a balancing channel, which is at ambient pressure.
摘要翻译： 一种燃料喷射器，具有：喷射阀，包括喷射喷嘴; 用于调节通过注射阀的燃料流动并且结束于与注射阀的阀座接合的关闭头的移动针相对于注射阀布置在外部并具有预定的密封直径; 致动器，用于在关闭位置和喷射阀的打开位置之间移动针; 倾向于将针保持在注射阀的关闭位置的关闭弹簧，其在与燃料的进给感觉相反的意义上将关闭头推向阀座本身; 以及具有筒状的支撑体，并具有配置针的送出通道; 在关闭头的相对端处的针联接到处于环境压力的平衡通道。
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公开(公告)号：US06286770B1
公开(公告)日：2001-09-11
申请号：US09670409
申请日：2000-09-26
IPC分类号： B05B130
CPC分类号： F02M51/0667 , F02M2200/306
摘要： Fuel injector, comprising a main tubular body, provided with at least one through pipe which ends in a spray nozzle which can spray the fuel present inside the through pipe, and a shutter unit, which is mobile axially inside the through pipe, from and towards a position of closure, in which the shutter unit itself abuts a sealing surface provided on the spray nozzle, and seals it in a fluid-tight manner; the shutter unit being made of a cup-type body, the base of which is defined by a sealing disc made of flexible material, on which there are provided an annular sealing projection and an annular stop projection, which is co-axial relative to the former; the annular stop projection having a height which is lower than the annular sealing projection, such as to abut the sealing surface of the spray nozzle only temporarily, subject to resilient deformation of the sealing disc itself.
摘要翻译： 燃料喷射器，包括主管体，其设置有至少一个贯通管，末端在可喷射存在于通管内的燃料的喷嘴中，以及可沿轴向移动穿过管内的活门单元， 闭合位置，其中快门单元本身邻接设置在喷嘴上的密封表面，并以流体密封的方式密封; 快门单元由杯形体制成，其基部由柔性材料制成的密封盘限定，其上设置有环形密封突起和环形止动突起，所述环形密封突起和环形止动突起相对于 前任的; 该环形止动突起具有比环形密封突起低的高度，仅临时地抵接喷嘴的密封表面，受到密封盘本身的弹性变形。
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公开(公告)号：US06182620B2
公开(公告)日：2001-02-06
申请号：US09409880
申请日：1999-10-01
IPC分类号： F01L904
摘要： An internal combustion engine with electromagnetically actuated valves comprising a variable volume combustion chamber, at least one suction duct connecting the combustion chamber with the suction manifold of the engine and at least one exhaust duct connecting the combustion chamber with the exhaust manifold of the engine, the internal combustion engine further comprising, for each suction and exhaust duct, a respective mushroom valve that can move from and to a closed position in which it closes the duct and an electromagnetic actuator adapted on command to move the valve to and from the closed position, the internal combustion engine further comprising, for at least one of the valves, a device for balancing the pressures exerted on the head of the valve and adapted to balance the pressure forces that tend to oppose the opening of this valve.
摘要翻译： 一种具有电磁致动阀的内燃机，包括可变体积燃烧室，将燃烧室与发动机的吸入歧管连接的至少一个吸气管道和连接燃烧室与发动机的排气歧管的至少一个排气管道， 内燃机还包括用于每个吸入和排出管道的相应的蘑菇阀，其能够从其关闭管道的关闭位置移动，以及适于根据命令将阀门移动到关闭位置和从关闭位置移动的电磁致动器， 所述内燃机还包括用于至少一个所述阀的装置，用于平衡施加在所述阀头上的压力并适于平衡倾向于与所述阀的开口相对的压力。
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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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9.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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