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公开(公告)号：US20120043392A1
公开(公告)日：2012-02-23
申请号：US13260479
申请日：2010-03-23
CPC分类号： F02M61/20 , F02M51/066 , F02M51/0685 , F02M61/205 , F02M2200/28 , F02M2200/304 , F02M2200/306
摘要： An injection valve for injecting fluid has a housing with an injection valve cavity. The injection valve has a needle being axially moveable within the cavity. The needle has a needle body with a valve needle cavity and a separation element being fixedly arranged within the needle cavity and being adopted to divide the valve needle cavity into a first and second fluid volume. The separation element has at least one fluid passage with a predetermined passage opening to hydraulically connect the first fluid volume with the second fluid volume. The valve needle has a sealing element being arranged to predetermine the first fluid volume and preventing a fluid injection in a closing position and permitting the fluid injection in further positions. In addition, the valve needle has at least one spring element being preloaded and acting on the sealing element towards a maximum axial expansion of the valve needle.
摘要翻译： 用于注射流体的注射阀具有带注射阀腔的外壳。 注射阀具有可在腔内轴向移动的针。 针具有具有阀针腔的针体，并且分离元件固定地设置在针腔内，并被采用以将阀针腔分成第一和第二流体体积。 分离元件具有至少一个具有预定通道开口的流体通道，以将第一流体体积与第二流体体积液压连接。 阀针具有密封元件，其被布置成预先确定第一流体体积并防止在关闭位置中的流体注入并允许流体注入到另外的位置。 此外，阀针具有至少一个弹簧元件被预加载并且作用在密封元件上朝向阀针的最大轴向膨胀。
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公开(公告)号：US20110215176A1
公开(公告)日：2011-09-08
申请号：US13106789
申请日：2011-05-12
申请人： Andrew E. Meyer
发明人： Andrew E. Meyer
IPC分类号： B05B1/26
CPC分类号： F02M51/061 , F02M51/0653 , F02M61/08 , F02M61/12 , F02M61/18 , F02M61/1886 , F02M61/205 , F02M69/145 , F02M2200/28
摘要： A fuel injector body has a fuel chamber and a valve seat around a fuel outlet. A valve body is positioned at the valve seat and a valve stem extends through the fuel outlet and fuel chamber. Engagement (disengagement) of valve body and valve seat closes (opens) the injector. The fuel chamber can comprise primary and secondary chambers connected by a valve passage and a metering member that restricts fuel flow between the chambers, thereby providing a flow-dependent closing force that reduces the dependence of fuel flow through the injector on fuel inlet pressure and that makes that flow dependent on an injector actuating force. The injector body or the valve body can comprise a spray-shaping surface arranged at least partly around the valve seat, which spray-shaping surface is arranged to direct a spray of fuel flowing through the fuel outlet.
摘要翻译： 燃料喷射器主体具有燃料室和围绕燃料出口的阀座。 阀体位于阀座处，阀杆延伸穿过燃料出口和燃料室。 阀体和阀座的接合（脱开）关闭（打开）进样器。 燃料室可以包括通过阀通道和计量构件连接的主室和次室，其限制室之间的燃料流动，从而提供依赖于流量的关闭力，其减少通过喷射器的燃料流对燃料入口压力的依赖性，并且 使得该流量取决于喷射器致动力。 喷射器主体或阀体可以包括至少部分地围绕阀座布置的喷射成形表面，该喷射成形表面布置成引导流过燃料出口的燃料喷射。
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公开(公告)号：US07963464B2
公开(公告)日：2011-06-21
申请号：US12018322
申请日：2008-01-23
申请人： Stephen R. Lewis , Shriprasad Lakhapati , Christopher D. Hanson , Avinash Manubolu , Daniel R. Ibrahim
发明人： Stephen R. Lewis , Shriprasad Lakhapati , Christopher D. Hanson , Avinash Manubolu , Daniel R. Ibrahim
CPC分类号： F02M61/168 , F02M47/027 , F02M2200/28 , F02M2200/80 , Y10T29/49412 , Y10T29/53
摘要： A fuel injector and a method of assembly includes a determination of various flow areas through clearances or openings formed in various components of the injector. With the various flow areas determined, the various components can be classified according to their flow areas such that sets of components can be selected having desirable flow area characteristics for assembly of the fuel injector.
摘要翻译： 燃料喷射器和组装方法包括通过在喷射器的各种部件中形成的间隙或开口来确定各种流动区域。 在确定了各种流动区域的情况下，各种部件可以根据它们的流动区域进行分类，使得可以选择具有用于组装燃料喷射器的理想流动面积特性的部件组。
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公开(公告)号：US20110114064A1
公开(公告)日：2011-05-19
申请号：US12743056
申请日：2008-11-14
申请人： Tatsuhiko Akita , Mitsuto Sakai
发明人： Tatsuhiko Akita , Mitsuto Sakai
IPC分类号： F02M37/04
CPC分类号： F02M59/462 , F02M37/0052 , F02M37/0058 , F02M55/002 , F02M55/007 , F02M55/02 , F02M63/0225 , F02M63/0245 , F02M2200/18 , F02M2200/28
摘要： A discharge valve (30) is provided in a high-pressure fuel passage (31) to allow fuel to pass through the discharge valve (30) only in a direction from a high-pressure fuel pump (20) toward a delivery pipe (50). A communication passage (41) with an orifice (42) is formed integrally with the discharge valve (30) in parallel with the discharge valve (30) to connect areas upstream and downstream of the discharge valve (30). When a fuel pressure in the delivery pipe (50) is increased to a target pressure using the high-pressure fuel pump (20), an amount of the fuel, which does not interfere with an increase in the fuel pressure, flows through the orifice (42). A check valve (40) is provided in the communication passage (41), and opened to allow the fuel to pass through the check valve (40) only in the direction from the delivery pipe (50) toward the high-pressure fuel pump (20), when the fuel pressure is higher than a first predetermined pressure.
摘要翻译： 排气阀（30）设置在高压燃料通路（31）中，以使得燃料仅在从高压燃料泵（20）朝向输送管（50）的方向通过排出阀（30） ）。 具有孔口（42）的连通通道（41）与排放阀（30）一体地与排放阀（30）平行地形成，以连接排出阀（30）上游和下游的区域。 当使用高压燃料泵（20）将输送管（50）中的燃料压力增加到目标压力时，不干扰燃料压力增加的燃料的量流过孔口 （42）。 止回阀（40）设置在连通通道（41）中，并且打开以允许燃料仅在从输送管（50）朝向高压燃料泵的方向通过止回阀（40） 20），当燃料压力高于第一预定压力时。
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公开(公告)号：US07740187B2
公开(公告)日：2010-06-22
申请号：US11171659
申请日：2005-06-30
IPC分类号： F02M41/16
CPC分类号： F02M63/008 , F02M47/027 , F02M63/0015 , F02M63/004 , F02M63/0043 , F02M63/0071 , F02M63/0073 , F02M2200/28 , F02M2547/003
摘要： An internal combustion engine fuel injector (1) has a rod (10) movable along an axis (3) to open/close a nozzle, and a servovalve (7) having a control chamber (23) with a discharge passage (26, 48) which is opened/closed by a shutter (17) movable axially under the control of an electro-actuator; the servovalve also has a fixed axial rod (33) having an outer lateral surface (34) through which the discharge passage (26, 48) comes out; the shutter (17) is fitted to the axial rod (33) to slide axially in substantially fluidtight manner, and, when closing the discharge passage (26, 48), is subjected to substantially zero resultant axial pressure by the fuel; and a calibrated portion (42, 52) of the discharge passage (26, 48) is formed close to the outlet of the discharge passage to produce swirl and/or cavitation in the fuel outflow near to the closing area between the shutter (17) and the axial rod (33).
摘要翻译： 一种内燃机燃料喷射器（1）具有可沿轴线（3）移动以打开/关闭喷嘴的杆（10）和具有控制室（23）的伺服阀（7），所述控制室具有排出通道（26,48 ），其由在电致动器的控制下可轴向移动的活门（17）打开/关闭; 所述伺服阀还具有固定的轴向杆（33），所述轴向杆具有外侧表面（34），所述排出通道（26,48）通过所述外侧表面出来; 活门17安装在轴杆33上，以基本上流体密封的方式轴向滑动，当关闭排气通道26,48时，燃料经过基本上为零的轴向压力; 并且排出通道（26,48）的校准部分（42,42）形成在排放通道的出口附近，以在靠近快门（17）之间的关闭区域的燃料流出中产生漩涡和/或空化， 和轴向杆（33）。
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公开(公告)号：US20100065652A1
公开(公告)日：2010-03-18
申请号：US12556691
申请日：2009-09-10
CPC分类号： F02M61/16 , F02M55/04 , F02M61/168 , F02M2200/28 , F02M2200/31
摘要： A fuel injector (10) has a housing (12) with a central longitudinal axis (L) having a fluid inlet portion (18) being adapted to be coupled to a fuel rail at a first axial end area (20). The housing (12) has a recess (24) and enables a fluid flow through a fluid outlet portion (26) at a second axial end area (28) facing away from the first axial end area (20). The fluid inlet portion (18) communicates with the fluid outlet portion (26) via the recess (24). Furthermore, the fuel injector (10) has a safety component (30), which is arranged at the central longitudinal axis (L) within the recess (24) and adapted to reduce and arranged for reducing a velocity regarding the central longitudinal axis (L) at the fluid inlet portion (18) of the fluid flowing from the recess (24) through the fluid inlet portion (18).
摘要翻译： 燃料喷射器（10）具有壳体（12），其中心纵向轴线（L）具有流体入口部分（18），其适于在第一轴向端部区域（20）处联接到燃料轨道。 壳体（12）具有凹部（24），并使流体能够在离开第一轴向端部区域（20）的第二轴向端部区域（28）处流过流体出口部分（26）。 流体入口部分（18）经由凹部（24）与流体出口部分（26）连通。 此外，燃料喷射器（10）具有安全部件（30），该安全部件设置在凹部（24）内的中心纵向轴线（L）处，并且适于减小并布置成减小关于中心纵向轴线（L ）在从凹部（24）流过流体入口部分（18）的流体的流体入口部分（18）处。
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公开(公告)号：US20090230220A1
公开(公告)日：2009-09-17
申请号：US12306054
申请日：2007-06-04
IPC分类号： F02M51/00
CPC分类号： F02M47/027 , F02M61/167 , F02M61/205 , F02M63/0015 , F02M63/0026 , F02M63/004 , F02M63/0043 , F02M63/0225 , F02M2200/28 , F02M2547/003
摘要： A leak-free injector is proposed, the closing force of which is increased by a closing piston. An injector has a nozzle needle and a control valve, the nozzle needle being guided in an injector housing and cooperating with a nozzle needle seat of the injector housing. A high-pressure chamber is present between the control valve and the nozzle needle seat, and the closing piston is provided on the nozzle needle. The closing piston subdivides the high-pressure chamber into a first region and a second region. The two regions of the high-pressure chamber communicate hydraulically via a closing throttle restriction.
摘要翻译： 提出了一种无泄漏的注射器，其关闭力由关闭活塞增加。 喷射器具有喷嘴针和控制阀，喷嘴针在注射器壳体中被引导并与喷射器壳体的喷嘴针座配合。 在控制阀和喷嘴针座之间存在高压室，并且关闭活塞设置在喷嘴针上。 关闭活塞将高压室细分为第一区域和第二区域。 高压室的两个区域通过关闭节气门限制液压地连通。
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公开(公告)号：US20090120412A1
公开(公告)日：2009-05-14
申请号：US12259999
申请日：2008-10-28
申请人： Kenichiro Tokuo , Satoshi Usui , Hiroyuki Yamada , Junichi Shimada , Masami Abe
发明人： Kenichiro Tokuo , Satoshi Usui , Hiroyuki Yamada , Junichi Shimada , Masami Abe
IPC分类号： F02M37/04
CPC分类号： F04B53/10 , F02M59/102 , F02M59/366 , F02M59/367 , F02M63/0015 , F02M63/004 , F02M63/0042 , F02M63/0043 , F02M63/0078 , F02M63/025 , F02M2200/28 , F02M2200/304
摘要： A plunger type high-pressure fuel pump includes a plunger reciprocated in a cylinder. A fluid pressurizing chamber of the pump has a chamber with a capacity that changes with reciprocation of the plunger. An electromagnetic valve is provided between the pressurizing chamber and a fluid suction passage; as well as a discharge valve. The electromagnetic valve includes a valve member including a suction valve; a solenoid coil adapted to displace the valve member; an anchor made of a magnetic material provided integrally with the valve member; and a core forming a magnetic circuit to attract the anchor by the electromagnetic force and dividing the inside of the electromagnetic valve into a hermetically closed space and an external space communicating with the fluid suction passage. The anchor or the core is provided with a fluid passage through which fluid can flow between the hermetically closed space and the external space formed by the anchor and the core, respectively when the suction valve is in an opened state.
摘要翻译： 柱塞型高压燃料泵包括在气缸中往复运动的柱塞。 泵的流体加压室具有容积随柱塞往复运动而变化的腔室。 在加压室和流体抽吸通道之间设有电磁阀; 以及排气阀。 电磁阀包括具有吸入阀的阀构件; 适于移动所述阀构件的电磁线圈; 由与阀构件一体设置的磁性材料构成的锚固件; 以及形成磁路的磁芯，以通过电磁力吸引锚固件，并将电磁阀的内部分隔成气密封闭的空间和与流体吸入通道连通的外部空间。 锚固件或芯部设置有流体通道，当吸入阀处于打开状态时，流体可以分别通过该流体通道在密封空间与由锚固件和芯部形成的外部空间之间流动。
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公开(公告)号：US07513445B2
公开(公告)日：2009-04-07
申请号：US11668637
申请日：2007-01-30
申请人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Onofrio De Michele , Chiara Altamura , Antonio Gravina , Carlo Mazzarella
发明人： Mario Ricco , Raffaele Ricco , Sergio Stucchi , Onofrio De Michele , Chiara Altamura , Antonio Gravina , Carlo Mazzarella
IPC分类号： F02M51/00
CPC分类号： F02M63/004 , F02M47/027 , F02M61/168 , F02M63/0043 , F02M63/008 , F02M2200/16 , F02M2200/28 , F02M2200/8053 , F02M2200/8076 , F02M2200/8092 , F02M2547/003
摘要： The metering servo valve comprises a valve body, an open/close element, and an electromagnet, and is housed in a shell of the injector. The electromagnet actuates a mobile armature for a travel defined by an arrest element, carried by the electromagnet, which is housed in a casing, fixed in the shell by means of a threaded ring nut. Said ring nut is screwed with a pre-set tightening torque on a thread of the shell. The casing has a resting surface designed to engage a shoulder of the shell. The surface is carried by an area of the casing designed to undergo deformation as a function of the tightening torque of the ring nut so as to enable fine adjustment of the travel of the armature.
摘要翻译： 计量伺服阀包括阀体，打开/关闭元件和电磁体，并且容纳在注射器的外壳中。 电磁铁驱动移动电枢，由由电磁体承载的止动元件所限定的行程，该电磁体通过螺纹环形螺母固定在外壳中，该壳体被容纳在壳体中。 所述环形螺母在壳的螺纹上以预定的紧固扭矩拧紧。 壳体具有设计成接合壳的肩部的搁置表面。 该表面由设计成经受变形的壳体的区域承载，作为环形螺母的紧固扭矩的函数，以便能够精细调节电枢的行程。
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公开(公告)号：US20070295306A1
公开(公告)日：2007-12-27
申请号：US11808994
申请日：2007-06-14
申请人： Tetsuya Yoshimura , Keisuke Suzuki
发明人： Tetsuya Yoshimura , Keisuke Suzuki
IPC分类号： F02M69/16
CPC分类号： F02M47/027 , F02M63/0026 , F02M63/0031 , F02M63/0045 , F02M2200/28 , F02M2200/703 , F02M2547/001
摘要： A fuel injection valve includes a valve element, an actuator, a control chamber, and a nozzle. The valve element is provided in a valve chamber. The control chamber is always communicated with the valve chamber. S3>S1>S2 is satisfied in a condition, where the followings are satisfied. S1 is a passage area of a high-pressure seat portion of the valve chamber, which area is a product of a peripheral length of the high-pressure seat portion multiplied by a lift amount of the valve element in a state, where the valve element is disengaged from the high-pressure seat portion. S2 is a passage area of the high-pressure restrictor. S3 is a passage area of the high-pressure fuel passage.
摘要翻译： 燃料喷射阀包括阀元件，致动器，控制室和喷嘴。 阀元件设置在阀室中。 控制室始终与阀室连通。 在满足以下条件的条件下满足S3> S1> S2。 S1是阀室的高压座部的通路面积，该区域是高压座部的周长乘以阀元件的升程量的乘积，阀状元件 与高压座部分脱离。 S2是高压限流器的通道区域。 S3是高压燃料通路的通道面积。
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