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公开(公告)号：US09719474B2
公开(公告)日：2017-08-01
申请号：US14758882
申请日：2014-01-02
发明人： Zongxuan Sun , Chienshin Wu
CPC分类号： F02M63/0015 , F02M45/12 , F02M47/025 , F02M47/027 , F02M61/10 , F02M61/161 , F02M63/0068 , F02M63/0275 , F02M2547/001 , F02M2547/008
摘要： An injector is designed to provide continuously variable injection rate shaping. With a hydro-mechanical internal feedback mechanism, injector needle position can be determined by controlling a feedback valve's on/off timing. According to the needle position, an injection needle valve opening can be controlled, and then the injection flow rate can be delivered proportionally. Also in accordance with the present invention a CRDI systems are provided including injectors of the present invention, wherein results demonstrate that injector designs of the present invention not only achieve rate shaping capability but also solve the above-noted problems of the current CRDI system. Finally, an iterative learning controller has also been developed to track the desired injection rate, and an injection rate estimator is designed to realize a cycle to cycle feedback control.
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公开(公告)号：US20170198661A1
公开(公告)日：2017-07-13
申请号：US15403043
申请日：2017-01-10
CPC分类号： F02M25/03 , F02B17/005 , F02D13/0215 , F02D41/0025 , F02F1/242 , F02M25/0222 , F02M25/0227 , F02M43/04 , F02M49/02 , F02M61/10 , F02M61/14 , Y02T10/18
摘要： Systems and methods are provided for a direct-injection engine having at least one cylinder head comprising at least one cylinder, in which each cylinder is assigned an injection nozzle which: is at least connectable to a fuel reservoir which serves for storing fuel, is secured in a nozzle holder, and is fitted with a nozzle needle which is displaceable in the direction of a longitudinal axis in a nozzle needle guide and, opens up at least one nozzle hole in order to introduce fuel. A control piston may be mounted movably on the injection nozzle, is displaceable in a translatory manner along the longitudinal axis of the injection nozzle between an inoperative position and a working position, and closes at least one fluid connection in the inoperative position and opens up same in the working position in order to introduce water into the associated cylinder.
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公开(公告)号：US09695789B2
公开(公告)日：2017-07-04
申请号：US14953658
申请日：2015-11-30
申请人： DENSO CORPORATION
发明人： Hiroki Tanada , Daiji Ueda , Motoya Kanbara
CPC分类号： F02M61/045 , F02M47/027 , F02M61/10 , F02M61/14 , F02M63/0026 , F02M63/0036 , F02M2200/28 , F02M2547/001
摘要： A valve cylinder partitions a first intermediate chamber from a second intermediate chamber. A first valve element in the first intermediate chamber includes a tubular high-pressure-side valve portion to control communication between a control chamber communication passage and the first intermediate chamber. A second valve element in the second intermediate chamber includes a low-pressure-side valve portion to control communication between an exhaust passage and the second intermediate chamber. A columnar rod portion located between the first valve element and the second valve element is slidably held at a cylinder hole of the valve cylinder. An internal passage communicates the control chamber communication passage with the second intermediate chamber. The high-pressure-side valve portion has an outer diameter greater than an outer diameter of the rod portion.
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公开(公告)号：US20170051712A1
公开(公告)日：2017-02-23
申请号：US15308196
申请日：2015-04-14
发明人： Ludovic Sauvetre , Antonin Cheron
CPC分类号： F02M47/027 , F02M61/10 , F02M61/165 , F02M2200/27
摘要： A fuel injector an internal combustion engine includes a filter for filtering fuel flowing into the control valve, the filter includes multiple filter orifices, provided on a sleeve surrounding the control valve, or on a filter element integral to the sleeve, or a filter element or plate located between an entry to the INO (inlet orifice) from a main fuel supply passage and the control valve, thereby filtering fuel contaminant particles from the flow of fuel entering the control valve, thereby reducing or eliminating control valve seat wear and subsequent leakage.
摘要翻译： 燃料喷射器内燃机包括用于过滤流入控制阀的燃料的过滤器，过滤器包括设置在围绕控制阀的套筒上或与套筒一体的过滤元件上的多个过滤孔，或过滤元件或 位于从主燃料供给通道进入INO（入口孔口）的入口和控制阀之间，从而从进入控制阀的燃料流中过滤燃料污染物颗粒，由此减少或消除了控制阀座磨损和随后的泄漏。
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公开(公告)号：US09441590B2
公开(公告)日：2016-09-13
申请号：US13392914
申请日：2010-07-19
CPC分类号： F02M61/10 , F02M61/12 , F02M61/18 , F02M61/1886
摘要： The invention relates to a fuel injection valve for injecting fuel into a combustion chamber of an internal combustion engine, having a nozzle needle (1) which is guided, such that it can perform a stroke movement, in a central bore (2) of a nozzle body (3) in order to open up or close off at least one injection opening (4), wherein the nozzle needle (1) interacts, by means of an encircling sealing region (5) formed on the combustion-chamber-side end thereof, with a sealing seat (6) that runs conically and is formed on the combustion-chamber-side end of the nozzle body (3). According to the invention, the sealing seat (6) that runs conically has an opening angle (α1) of between 30° and 50°, preferably of between 40° and 50°.
摘要翻译： 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射阀，该燃料喷射阀具有喷嘴针（1），喷嘴针（1）可以在其中心孔（2）中被引导，从而能够执行行程运动 喷嘴主体（3），以便打开或关闭至少一个喷射开口（4），其中喷嘴针（1）通过形成在燃烧室侧端部上的环绕密封区域（5）相互作用 其具有圆锥形地延伸并形成在喷嘴体（3）的燃烧室侧端部上的密封座（6）。 根据本发明，锥形延伸的密封座（6）的开度角（α1）在30°至50°之间，优选在40°至50°之间。
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公开(公告)号：US20160258404A1
公开(公告)日：2016-09-08
申请号：US14953658
申请日：2015-11-30
申请人： DENSO CORPORATION
发明人： Hiroki TANADA , Daiji UEDA , Motoya KANBARA
CPC分类号： F02M61/045 , F02M47/027 , F02M61/10 , F02M61/14 , F02M63/0026 , F02M63/0036 , F02M2200/28 , F02M2547/001
摘要： A valve cylinder partitions a first intermediate chamber from a second intermediate chamber. A first valve element in the first intermediate chamber includes a tubular high-pressure-side valve portion to control communication between a control chamber communication passage and the first intermediate chamber. A second valve element in the second intermediate chamber includes a low-pressure-side valve portion to control communication between an exhaust passage and the second intermediate chamber. A columnar rod portion located between the first valve element and the second valve element is slidably held at a cylinder hole of the valve cylinder. An internal passage communicates the control chamber communication passage with the second intermediate chamber. The high-pressure-side valve portion has an outer diameter greater than an outer diameter of the rod portion.
摘要翻译： 阀芯从第二中间室分隔第一中间室。 第一中间室中的第一阀元件包括用于控制控制室连通通道和第一中间室之间的连通的管状高压侧阀部分。 第二中间室中的第二阀元件包括用于控制排气通道和第二中间室之间的连通的低压侧阀部分。 位于第一阀元件和第二阀元件之间的柱状杆部分可滑动地保持在阀筒的气缸孔处。 内部通道将控制室连通通道与第二中间室连通。 高压侧阀部的外径大于杆部的外径。
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公开(公告)号：US09359984B2
公开(公告)日：2016-06-07
申请号：US13880726
申请日：2011-10-14
申请人： Anatoliy Lyubar , Antonio Agresta
发明人： Anatoliy Lyubar , Antonio Agresta
CPC分类号： F02M51/0628 , F02M51/0625 , F02M61/10
摘要： A valve assembly for an injection valve may include a valve body having a central longitudinal axis and a cavity with a fluid inlet portion and a fluid outlet portion, the fluid inlet portion having a step, a valve needle axially movable in the cavity, the valve needle preventing a fluid flow through the fluid outlet portion in a closing position and releasing the fluid flow through the fluid outlet portion in an open position, and an electro-magnetic actuator unit configured to actuate the valve needle and comprising an axially movable armature, the armature including a first armature part fixedly coupled to the valve needle and a second armature part axially movable relative to the first armature part, the second armature part configured such that the second armature part is mechanically decoupled from the first armature part by hitting the step when the valve needle reaches its open position.
摘要翻译： 用于喷射阀的阀组件可以包括具有中心纵向轴线的阀体和具有流体入口部分和流体出口部分的腔体，流体入口部分具有台阶，可在空腔中轴向移动的阀针，阀 针头防止流体在关闭位置流过流体出口部分，并将流体流体通过流体出口部分释放在打开位置;以及电磁致动器单元，构造成致动阀针并且包括可轴向移动的衔铁， 电枢，其包括固定地联接到所述阀针的第一电枢部分和相对于所述第一电枢部件可轴向移动的第二电枢部件，所述第二电枢部件被构造成使得所述第二电枢部件通过撞击所述台阶而与所述第一电枢部件机械地分离， 阀针到达其打开位置。
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公开(公告)号：US20160108874A1
公开(公告)日：2016-04-21
申请号：US14892985
申请日：2014-05-21
发明人： George A. MEEK , Lukhbir PANESAR
CPC分类号： F02M43/04 , F02D19/0694 , F02D19/10 , F02M45/086 , F02M47/027 , F02M55/025 , F02M61/10 , F02M61/14 , F02M61/16 , F02M63/0015 , F02M63/0064 , F02M2200/40 , F02M2200/857 , Y02T10/36
摘要： A fuel injector (200) for an internal combustion engine is disclosed. The fuel injector is installable in a cylinder head bore of a cylinder head of the engine and comprises a body region (B) arranged to be received within the cylinder head bore, and a head region (H) arranged to extend outside the cylinder head bore to protrude from the cylinder head when the injector is installed in the cylinder head bore, a first valve needle (116) arranged to control the injection of a gaseous fuel from a first outlet, a second valve needle (120) arranged to control the injection of a liquid fuel from a second outlet, a gaseous fuel inlet (130) for admitting the gaseous fuel to the injector, and a liquid fuel inlet (156) for admitting the liquid fuel to the injector. The gaseous fuel inlet (130) is disposed in the body region (B) of the injector, and wherein the liquid fuel inlet (156) is disposed in the head region (H) of the injector. Preferably, the injector includes an internal accumulator volume (270) so that an external fuel rail is not necessary.
摘要翻译： 公开了一种用于内燃机的燃料喷射器（200）。 燃料喷射器可安装在发动机的气缸盖的气缸盖孔中，并且包括布置成容纳在气缸盖孔内的主体区域（B）和布置成延伸到气缸盖孔外侧的头部区域（H） 当所述喷射器安装在所述气缸盖孔中时，从所述气缸盖突出;布置成控制从第一出口喷射气态燃料的第一阀针（116），布置成控制所述喷射的第二阀针 来自第二出口的液体燃料，用于将气体燃料引入喷射器的气体燃料入口（130）和用于将液体燃料引入喷射器的液体燃料入口（156）。 气体燃料入口（130）设置在喷射器的主体区域（B）中，并且其中液体燃料入口（156）设置在喷射器的头部区域（H）中。 优选地，喷射器包括内部蓄能器容积（270），使得不需要外部燃料轨。
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公开(公告)号：US20160040640A1
公开(公告)日：2016-02-11
申请号：US14817256
申请日：2015-08-04
CPC分类号： F02M61/10 , F02M45/086 , F02M47/027 , F02M51/0653 , F02M61/182 , F02M63/0021 , F02M2200/46
摘要： A fluid injection device for a combustion engine comprising a nozzle body, a first nozzle needle being arranged inside the nozzle body and configured as a hollow needle, and a second nozzle needle being arranged inside the first nozzle needle, wherein the first nozzle needle and the second nozzle needle are axially displaceable. The second nozzle needle constitutes the valve needle of a solenoid valve, and the second nozzle needle is configured as an at least partially pressure-compensated nozzle needle so that an axial movement of the second nozzle needle can be controlled by the solenoid valve without hydraulic transmission.
摘要翻译： 一种用于内燃机的流体注入装置，包括喷嘴体，第一喷嘴针布置在喷嘴体内并构成中空针，第二喷嘴针布置在第一喷嘴针的内部，其中第一喷嘴针和 第二喷嘴针可轴向移动。 第二喷嘴针构成电磁阀的阀针，第二喷嘴针被构造成至少部分压力补偿的喷嘴针，使得第二喷嘴针的轴向运动可以由电磁阀控制而不需要液压传动 。
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公开(公告)号：US20160040619A1
公开(公告)日：2016-02-11
申请号：US14860790
申请日：2015-09-22
发明人： Dong-Hun KIM , Seung-Hyup RYU , Tae-Hyung PARK
CPC分类号： F02D41/401 , F02D41/38 , F02M47/02 , F02M47/027 , F02M51/06 , F02M61/10 , F02M61/20 , F02M61/205 , F02M63/001 , F02M2200/50
摘要： An electronically controlled fuel injection valve can control the time to inject fuel and the amount of fuel to be injected in response to a control signal independently from the operating condition of an engine unlike a traditional mechanical fuel injection valve. The electronically controlled fuel injection valve employs a control method for fuel injection that increases the force of lifting up a cutoff needle of an injection controller by delivering high-pressure fuel to a lower pressure chamber via a control needle, thereby rapidly controlling fuel injection, has a simple structure making it easy to assemble, replace and precisely machine parts, and has a simple flow path structure which facilitates fabrication.
摘要翻译： 与传统的机械燃料喷射阀不同，电子控制的燃料喷射阀可以响应于独立于发动机的运行状态的控制信号来控制喷射燃料的时间和喷射的燃料量。 电子控制燃料喷射阀采用燃料喷射的控制方法，其通过经由控制针将高压燃料输送到较低压力室，从而增加喷射控制器的截止针的提升力，从而快速控制燃料喷射，具有 简单的结构使得组装，更换和精密加工零件变得容易，并且具有便于制造的简单流动路径结构。
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