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公开(公告)号：US07204434B2
公开(公告)日：2007-04-17
申请号：US11454767
申请日：2006-06-16
IPC分类号： F02M51/00
CPC分类号： F02M61/161 , F02M51/06 , F02M51/0653 , F02M51/0671 , F02M61/08
摘要： A fuel injector has an injection valve having a movable pin terminating with a shutter head; a tubular supporting body having a feed channel; and a sealing body, in which a valve seat of the injection valve is defined; the shutter head is truncated-cone-shaped, is located outside the sealing body, and, in a closed position, is pushed against the sealing body in the opposite direction to the fuel feed direction; the pin has a stop member, which is integral with the pin and comes to rest on a top surface of the sealing body, when the pin is in the open position opening the injection valve, so as to determine travel of the pin.
摘要翻译： 燃料喷射器具有喷射阀，该喷射阀具有终止于快门头的可动销; 具有进料通道的管状支撑体; 以及密封体，其中限定了所述喷射阀的阀座; 快门头是截锥形的，位于密封体外部，并且在关闭位置沿与燃料供给方向相反的方向被推靠在密封体上; 销具有止动构件，该销与销成一体，并且当销处于打开位置以打开所述注射阀时停止在所述密封体的顶表面上，以便确定所述销的行程。
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公开(公告)号：US20070001033A1
公开(公告)日：2007-01-04
申请号：US11454767
申请日：2006-06-16
IPC分类号： F02M51/00
CPC分类号： F02M61/161 , F02M51/06 , F02M51/0653 , F02M51/0671 , F02M61/08
摘要： A fuel injector has an injection valve having a movable pin terminating with a shutter head; a tubular supporting body having a feed channel; and a sealing body, in which a valve seat of the injection valve is defined; the shutter head is truncated-cone-shaped, is located outside the sealing body, and, in a closed position, is pushed against the sealing body in the opposite direction to the fuel feed direction; the pin has a stop member, which is integral with the pin and comes to rest on a top surface of the sealing body, when the pin is in the open position opening the injection valve, so as to determine travel of the pin.
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公开(公告)号：US07546961B2
公开(公告)日：2009-06-16
申请号：US11414717
申请日：2006-04-28
申请人： Marcello Cristiani , Paolo Pasquali
发明人： Marcello Cristiani , Paolo Pasquali
IPC分类号： F02M51/00
CPC分类号： F02M61/12 , F02M51/0671 , F02M61/08 , F02M61/162 , F02M61/168 , F02M61/18
摘要： A fuel injector equipped with an injection valve comprising a mobile plunger ending with a sealing head; a support body having a tubular shape and comprising a feed channel; and a sealing body, in which is defined a valve seat of the injection valve; the sealing head is of a frustoconical shape, is arranged externally relative to the guide element, is thrust by a spring against said guide element in a direction contrary to the direction of feed of the fuel; the valve seat has a frustoconical shape which is a negative reproduction of the frustoconical shape of the sealing head in order to impart an internally hollow conical shape to the injected fuel.
摘要翻译： 一种配备有注射阀的燃料喷射器，包括以密封头为末端的活动柱塞; 具有管状形状并包括进料通道的支撑体; 以及密封体，其中限定了所述喷射阀的阀座; 密封头具有截头圆锥形形状，相对于引导元件布置在外部，在与所述燃料的进给方向相反的方向上被弹簧推靠在所述引导元件上; 阀座具有截头圆锥形状，其是密封头的截头圆锥形状的负再现，以便向注入的燃料赋予内部中空的圆锥形形状。
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公开(公告)号：US20060255185A1
公开(公告)日：2006-11-16
申请号：US11414717
申请日：2006-04-28
申请人： Marcello Cristiani , Paolo Pasquali
发明人： Marcello Cristiani , Paolo Pasquali
IPC分类号： F02M61/08
CPC分类号： F02M61/12 , F02M51/0671 , F02M61/08 , F02M61/162 , F02M61/168 , F02M61/18
摘要： A fuel injector equipped with an injection valve comprising a mobile plunger ending with a sealing head; a support body having a tubular shape and comprising a feed channel; and a sealing body, in which is defined a valve seat of the injection valve; the sealing head is of a frustoconical shape, is arranged externally relative to the guide element, is thrust by a spring against said guide element in a direction contrary to the direction of feed of the fuel; the valve seat has a frustoconical shape which is a negative reproduction of the frustoconical shape of the sealing head in order to impart an internally hollow conical shape to the injected fuel.
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公开(公告)号：US20050207912A1
公开(公告)日：2005-09-22
申请号：US10991564
申请日：2004-11-18
IPC分类号： F04B43/00 , F04B43/067 , F04B9/08 , F04B35/02
CPC分类号： F04B43/067 , F04B43/0054
摘要： In a fuel pump for an internal combustion engine, a pumping device is adapted to vary the volume of a first chamber containing the fuel and is formed by a second chamber adapted to contain oil, a deformable diaphragm for the leak-tight separation of the chambers from one another, and by a piston mounted to slide within the second chamber and comprising an active end surface bounding this second chamber; the diaphragm being adapted to be deformed to vary the volume of the first chamber under the action of the thrust exerted by the oil contained in the second chamber following an alternating movement of the piston within this second chamber.
摘要翻译： 在用于内燃机的燃料泵中，泵送装置适于改变容纳燃料的第一室的体积，并且由适于容纳油的第二室形成，用于密封室分离的可变形隔膜 并且通过安装成在第二腔室内滑动的活塞并且包括限定该第二腔室的活动端面; 所述隔膜适于在所述活塞在所述第二室内的交替运动之后，在由所述第二室中容纳的油施加的推力的作用下变形以改变所述第一室的体积。
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6.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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7.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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