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公开(公告)号：US20170218901A1
公开(公告)日：2017-08-03
申请号：US15485797
申请日：2017-04-12
发明人： Luigi Marchi , Filippo Falaschi , Ivano Izzo
CPC分类号： F02M51/0632 , F02M51/0685 , F02M61/12 , F02M61/20 , F02M2200/304
摘要： An injector for injecting fluid with a valve assembly including a valve body and a valve needle, the needle including an armature retainer and being operable to prevent and to enable injection of fluid, and with an electromagnetic actuator assembly, operable to exert a force for influencing a position of the valve needle, including a pole piece and an armature. The pole piece is positionally fixed with the valve body. The armature is operable to be axially displaced relative to the pole piece and to take along the armature retainer when being displaced towards the pole piece. A fluid channel is defined by the armature retainer constriction surface and the pole piece constriction surface. A hydraulic diameter of the fluid channel is at least twice at large when the valve needle is in a closing position compared to the hydraulic diameter at a maximum displacement away from the closing position.
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公开(公告)号：US09651011B2
公开(公告)日：2017-05-16
申请号：US14398997
申请日：2013-05-07
发明人： Ileana Romeo
IPC分类号： F02M51/06
CPC分类号： F02M51/0632 , F02M51/0685 , F02M2200/306
摘要： A valve assembly for an injection valve includes a valve body having a cavity with a fluid inlet portion and a fluid outlet portion, a valve needle axially movable in the cavity between a closing position preventing a fluid flow through the fluid outlet portion and further positions releasing the fluid flow through the fluid outlet portion, an electro-magnetic actuator unit that actuates the valve needle, and includes an axially movable armature in the cavity and a disc element fixedly coupled to the valve needle and configured to limit the axial movement of the armature relative to the valve needle towards the fluid outlet portion. An armature spring biases the armature away from the disc element for establishing a fluid-filled gap between the armature and the disc element. The armature is axially displaceable towards the disc element against the armature spring bias to reduce an axial size of the gap.
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公开(公告)号：US20160333813A1
公开(公告)日：2016-11-17
申请号：US15131517
申请日：2016-04-18
申请人： KEIHIN CORPORATION
CPC分类号： F02M51/0632 , F02D35/023 , F02D41/20 , F02D41/40 , F02D2200/0618 , F02M51/0685 , F02M57/005 , F02M2200/247 , Y02T10/44
摘要： A fuel injection control apparatus is provided with a first valve opening timing determination portion that determines a first valve opening timing on the basis of a collision signal that is included in detected signals of an in-cylinder pressure sensor and indicates a collision between a movable core and a valve element and a second valve opening timing determination portion that determines a second valve opening timing on the basis of another collision signal that is included in the detected signals and indicates a collision between the movable core and a stationary core.
摘要翻译： 一种燃料喷射控制装置，具备第一开阀定时判定部，其基于包含在缸内压力传感器的检测信号中的碰撞信号来决定第一开阀定时，并指示可动铁心 以及阀元件和第二阀打开定时判定部，其基于检测信号中包含的另一碰撞信号来确定第二阀打开正时，并指示可动铁芯与固定铁芯之间的碰撞。
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公开(公告)号：US5044563A
公开(公告)日：1991-09-03
申请号：US419489
申请日：1989-10-10
申请人： Gerhard Mesenich
发明人： Gerhard Mesenich
CPC分类号： F02M51/0614 , F02M51/005 , F02M51/0632 , F02M51/0667 , F02M2051/08
摘要： An extremely fast electromagnetic fuel injector in miniature form which is intended predominantly for fuel injection into the suction pipe of combustion engines. The device features an armature of extremely low mass which is guided only by a diaphragm spring. The injector is mounted in a plastic valve carrier. In addition, a procedure for dynamic calibration is proposed where the magnetic resistivity of the magnetic circuit is varied.
摘要翻译： 一种非常快速的微型电磁燃料喷射器，其主要用于燃料喷射到内燃机的吸入管中。 该装置具有极低质量的电枢，其仅由膜片弹簧引导。 注射器安装在塑料阀载体中。 此外，提出了一种用于动态校准的程序，其中磁路的磁阻率变化。
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公开(公告)号：US4883252A
公开(公告)日：1989-11-28
申请号：US300030
申请日：1989-01-23
申请人： Gerhard Mesenich
发明人： Gerhard Mesenich
CPC分类号： F02M51/0639 , F02D41/40 , F02M51/0625 , F02M51/0632 , F02M51/0667 , G05D16/2013 , F02M2051/08 , Y02T10/44
摘要： A fuel injection fuel supply system for a combustion engine has a fuel injector valve effective for metering and injecting metered fuel to the engine induction system; an electromagnetic assembly having a magnetic open loop is used for cyclically opening and closing the injector valve.
摘要翻译： 用于内燃机的燃料喷射燃料供应系统具有有效用于计量并将计量燃料喷射到发动机感应系统的燃料喷射阀; 使用具有磁开环的电磁组件来循环地打开和关闭喷射器阀。
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公开(公告)号：US4826082A
公开(公告)日：1989-05-02
申请号：US134266
申请日：1987-12-17
申请人： Max Greiner , Udo Hafner , Waldemar Hans , Heinrich Knapp , Wolfgang Kramer , Rudolf Krauss , Ferdinand Reiter , Peter Romann , Rudolf Sauer
发明人： Max Greiner , Udo Hafner , Waldemar Hans , Heinrich Knapp , Wolfgang Kramer , Rudolf Krauss , Ferdinand Reiter , Peter Romann , Rudolf Sauer
CPC分类号： F02M51/0632 , F02M51/0621 , F02M51/0689 , F02M51/0692 , F02M53/04 , F02M61/165 , F02M2051/08
摘要： An electromagnetically actuatable fuel injection valve which has an internal scavenging system for cleaning dirt particles from a magnetic field air gap. A portion of the fuel flowing in via an inflow line and an inflow opening reaches the vicinity of an air gap defined on one side by an armature and on the other by magnetic poles and flows through this gap, and then flows via an outflow opening to enter an outflow line that communicates with a fuel return. As a result of the described scavenging of the air gap, dirt particles are prevented from becoming firmly attached there and causing impairment of the performance of the fuel injection valve.
摘要翻译： 一种电磁致动燃料喷射阀，其具有用于从磁场空气间隙清洁污垢颗粒的内部扫气系统。 通过流入管路和流入口流入的燃料的一部分通过电枢到达一侧的气隙附近，另一方面通过磁极流过该间隙，然后通过流出口流入 进入与燃油回路连通的流出管路。 作为对间隙的清除的结果，防止了灰尘颗粒牢固地附着在其上并且导致燃料喷射阀的性能受损。
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公开(公告)号：US4705219A
公开(公告)日：1987-11-10
申请号：US778961
申请日：1985-09-23
申请人： Brian C. Pagdin
发明人： Brian C. Pagdin
CPC分类号： F02M51/0632 , F02M61/161 , F02M61/166 , F02D2200/0606 , F02M2051/08 , Y10S239/90 , Y10T137/7737
摘要： An electromagnetically-operable fuel injector comprising a fuel chamber having an outlet nozzle and into which a solenoid core projects. A ball valve in the gap between the core and the nozzle orifice and movable towards and away from the core to seat and unseat a valve seat around the nozzle orifice by energization of an electromagnetic circuit. Compensating structure is provided which respond to changes in temperature by changing a physical characteristic. The compensating structure function either to change the length of the core or to adjust the position of the valve seat relative to the core such that any tendency for fuel metering characteristics of the injector to be changed by a change in temperature in the injector is countered whereby operation of the injector to inject fuel is substantially independent of temperature change.
摘要翻译： 一种电磁可操作的燃料喷射器，其包括具有出口喷嘴的燃料室，并且螺线管芯心突出。 在阀芯和喷嘴孔之间的间隙中的球阀，并且可以朝向和远离芯部移动以通过电磁线圈的通电而使喷嘴孔周围的阀座座位和离开。 提供了通过改变物理特性来响应温度变化的补偿结构。 补偿结构用于改变芯的长度或调整阀座相对于芯的位置，使得喷射器的燃料计量特性的变化可通过喷射器中的温度变化而改变，由此抵消 注射器喷射燃料的操作基本上与温度变化无关。
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8.发明授权
公开(公告)号：US4704591A
公开(公告)日：1987-11-03
申请号：US822520
申请日：1986-01-27
申请人： Udo Hafner
发明人： Udo Hafner
CPC分类号： F02M61/08 , F02M51/0621 , F02M51/0632 , F02M51/0689 , F02M51/0692 , F02M2051/08 , Y10T29/4902 , Y10T29/49888
摘要： An electromagnetically actuable fuel injection valve, which serves to supply fuel to mixture-compressing internal combustion engines having externally supplied ignition. The fuel injection valve includes a base plate into which pole pieces having bent poles are inserted. Magnetic coils are fitted onto the pole pieces. A first permanent magnet is inserted between the poles and a second permanent magnet is disposed between the magnetic conductor elements disposed on the other end of the pole pieces. Beginning at the base plate, the magnetic coils and the pole pieces are provided with a sprayed-on plastic jacket. The plastic jacket is inserted together with the base plate into an internal housing bore of a valve housing. A valve group is inserted into an outlet pipe of the valve housing which has an armature oriented toward the poles and joined with a valve needle which on its other end has a closing head that cooperates with a valve seat on a valve seat body and can be raised from the valve seat in the fuel flow direction.
摘要翻译： 一种可电磁致动的燃料喷射阀，其用于将燃料供给具有外部点火的混合压缩内燃机。 燃料喷射阀包括插入有弯曲极的极片的基板。 电磁线圈安装在极片上。 第一永磁体被插入在极之间，并且第二永磁体设置在设置在极片另一端的磁导体元件之间。 从基板开始，磁性线圈和极片设置有喷涂塑料护套。 塑料护套与基板一起插入阀壳体的内部孔中。 阀组被插入到阀壳的出口管中，其具有朝向磁极的电枢并且与阀针接合，阀针在另一端具有与阀座体上的阀座配合的闭合头，并且可以是 在燃料流动方向从阀座升起。
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公开(公告)号：US11692520B2
公开(公告)日：2023-07-04
申请号：US16990398
申请日：2020-08-11
申请人： Caterpillar Inc.
发明人： Cory A. Brown
CPC分类号： F02M51/0632 , F02M47/027 , F02M51/0628 , F02M55/004 , F02M55/008 , F02M61/045 , F02M61/20 , F02M2200/28
摘要： A fuel injector includes an injector body and a valve stack within the injector body that includes a valve seat plate. The valve seat plate includes a pressure control passage for controlling fuel injection, and a valve seat positioned fluidly between the pressure control passage and a low-pressure drain. The valve seat plate includes a pressure-limiting annular groove that extends circumferentially around the valve seat and axially inward from a side of the valve seat plate where the valve seat is located. The groove enables deformation in response to pressure differences across the valve seat plate in a manner that limits stress concentrations.
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公开(公告)号：US20180258894A1
公开(公告)日：2018-09-13
申请号：US15758093
申请日：2016-08-02
IPC分类号： F02M51/06
CPC分类号： F02M51/0682 , F02M51/06 , F02M51/0614 , F02M51/0632 , F02M51/0678
摘要： The present invention includes a valve seat and a valve body that cooperatively open/close a fuel passage, a movable element having the valve body provided at one end part thereof and a movable iron core 27a provided at the other end part thereof, a fixed iron core 25 which faces the movable iron core 27a and which attracts the movable iron core 27a by applying a magnetic attraction force thereto, and a cylindrical member that includes thereinside the fixed iron core 25 and the movable iron core 27a. The fixed iron core 25 includes a reduced-diameter part 25m on an outer circumferential surface at the side facing the movable iron core 27a, and the movable iron core 27a includes a reduced-diameter part 27am on an outer circumferential surface at the side facing the fixed iron core 25.
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