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1.发明授权公开(公告)号：US07802584B2
公开(公告)日：2010-09-28
申请号：US11646747
申请日：2006-12-27
CPC分类号： F02M63/004 , F02M47/027 , F02M51/005 , F02M53/04 , F02M61/168 , F02M63/0015 , F02M63/0019 , F02M63/008 , F02M2200/9015 , Y10T29/494 , Y10T29/49417 , Y10T137/0491 , Y10T137/5987
摘要： A fuel injector comprising a hollow body for housing a metering valve with a calibrated pipe for outlet of the fuel from a control chamber. The calibrated pipe is normally kept closed by a shutter controlled by an electromagnet comprising a magnetic core and an electric coil housed in an annular slot of the core. The coil outer cylindrical surface forms a gap with the annular slot so as to be lapped by the fuel coming out of the calibrated pipe. The coil comprises a bobbin having a pair of appendages for supporting electric supply plugs, which are englobed at least in part in a block of non-magnetic material. The bobbin has a substantially cylindrical rib, one flange adjacent to an end portion of the plugs, and another flange having a smaller diameter that forms a passage for the fuel between the calibrated pipe and the gap.
摘要翻译： 一种燃料喷射器，包括用于容纳具有用于从控制室排出燃料的校准管的计量阀的中空体。 校准管通常由电磁体控制的快门保持关闭，所述电磁体包括磁芯和容纳在芯的环形槽中的电线圈。 线圈外圆柱形表面与环形槽形成间隙，以便被从校准管出来的燃料重叠。 线圈包括具有用于支撑电源插头的一对附件的线轴，其至少部分地嵌入非磁性材料块中。 线轴具有基本上圆柱形的肋，邻近插头的端部的一个凸缘，以及具有较小直径的另一个凸缘，其形成用于校准管和间隙之间的燃料的通道。
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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：US07278399B2
公开(公告)日：2007-10-09
申请号：US11097122
申请日：2005-04-04
IPC分类号： F02M63/00
CPC分类号： F02M63/008 , F02M47/027 , F02M55/025 , F02M63/02 , F02M63/0225 , F02M2547/003
摘要： A fuel-injection system (1, 1′, 1″, 1′″) for an internal-combustion engine (2), of the type provided with: a tank (3) for collection of the fuel; compressor system (4) for drawing in the fuel from the tank (3) and making it available at high pressure to an storage volume (7); at least one injector (8, 8′, 8′″) hydraulically connected to the storage volume (7) for taking in the fuel at a high pressure from the storage volume (7) and injecting it into a respective combustion chamber (12) of the engine (2); a fluid line (17) connecting the storage volume to the tank; and pressure-regulator means (19) in the storage volume (7) set along the fluid line (17); the pressure-regulator systems (19) are set hydraulically downstream of the storage volume (7) so as to enable a continuous flow of fuel through the storage volume (7) itself.
摘要翻译： 一种用于内燃机（2）的燃料喷射系统（1,1'，1“，1”'），其具有：用于收集燃料的罐（3）; 压缩机系统（4），用于从罐（3）吸入燃料并使其在高压下可用于存储容积（7）; 至少一个喷射器（8,8'，8“），其液压地连接到所述存储容积（7），用于以高压从所述存储容积（7）吸入所述燃料并将其注入相应的燃烧室 ）发动机（2）; 将储存容器连接到罐的流体管线（17）; 以及沿所述流体管线（17）设置的所述储存容积（7）中的压力调节装置（19）; 压力调节器系统（19）被液压地设置在储存容积（7）的下游，以便能够使燃料连续流过储存容积（7）本身。
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公开(公告)号：US20050087625A1
公开(公告)日：2005-04-28
申请号：US10974446
申请日：2004-10-27
申请人： Mario Ricco , Adriano Gorgoglione
发明人： Mario Ricco , Adriano Gorgoglione
CPC分类号： F02M63/0031 , F02M47/027 , F02M61/168 , F02M63/0036 , F02M2200/80 , F02M2200/8061 , F02M2200/8092 , F02M2547/003 , Y10T29/49412 , Y10T29/49945
摘要： A fuel injector has an injector body extending along a given axis; a tubular valve body housed inside a hole in the injector body and coaxial with the injector body; and an annular chamber defined by the injector body and the valve body. The method of producing the injector includes connecting the valve body to the injector body, and fixing the valve body in a given position along the axis with respect to the injector body by means of a driving operation to interference fit the valve body inside the hole in the injector body.
摘要翻译： 燃料喷射器具有沿给定轴线延伸的喷射器主体; 管状阀体，容纳在喷射器主体的孔内并与喷射器主体同轴; 以及由喷射器主体和阀体限定的环形室。 制造喷射器的方法包括将阀体连接到喷射器主体，并且通过驱动操作将阀体相对于喷射器主体沿着轴线固定在给定位置，以将阀体过盈配合在孔内部 注射器体。
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公开(公告)号：US07527036B2
公开(公告)日：2009-05-05
申请号：US11741474
申请日：2007-04-27
IPC分类号： F02M37/04
CPC分类号： F02M63/008 , F02M47/027 , F02M63/0015 , F02M63/004 , F02M63/0043 , F02M63/0071 , F02M63/0073 , F02M2200/28 , F02M2547/003
摘要： A control servo valve is housed inside the casing of an internal combustion engine fuel injector, and has an actuator, a control chamber communicating with a fuel inlet and with a fuel outlet passage, and a shutter movable along an axis by the actuator between a closed position and an open position to close and open the outlet passage respectively; the servo valve also has a fixed axial rod interposed between the actuator and the control chamber; the outlet passage comes out through an outer lateral surface of the axial rod; and the shutter is defined by a sleeve which slides axially on the outer lateral surface, and, in the closed position, closes the outlet passage so as to be subjected to a zero axial resultant force by the pressure of the fuel.
摘要翻译： 控制伺服阀被容纳在内燃机燃料喷射器的壳体内，并且具有致动器，与燃料入口连通的控制室和燃料出口通道，以及通过致动器沿着轴可在闭合 位置和打开位置分别关闭和打开出口通道; 伺服阀还具有夹在致动器和控制室之间的固定轴向杆; 出口通道通过轴杆的外侧表面出来; 并且挡板由在外侧表面上轴向滑动的套筒限定，并且在关闭位置中封闭出口通道，以便通过燃料的压力经受零轴向合力。
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6.发明申请METHOD FOR OBTAINING A FUEL INJECTOR FOR AN INTERNAL-COMBUSTION ENGINE, AND AN INJECTOR MADE ACCORDING TO SAID METHOD 有权用于获得内燃机燃油喷射器的方法，以及根据所述方法制造的喷射器公开(公告)号：US20090071005A1
公开(公告)日：2009-03-19
申请号：US12271349
申请日：2008-11-14
CPC分类号： F02M61/168 , F02M47/027 , F02M51/005 , F02M63/0015 , F02M2200/16 , F02M2200/9015 , Y10T29/49009 , Y10T29/494
摘要： A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing the open/close element; and a solenoid actuator, which can be actuated for exerting an action countering the thrust exerted by the elastic element. The solenoid actuator is formed by a monolithic assembly obtained in a mould, in which there is injected, on a core and a coil coupled to one another, a plastic material, which defines, once it has solidified, a body for insulation of the core from the injector body and which forms, once it has solidified, a monolithic assembly with the core and the coil.
摘要翻译： 用于内燃机的燃料喷射器包括喷射器主体和喷射控制阀，该喷射器主体和喷射控制阀又包括开/关元件; 用于推动打开/关闭元件的弹性止推元件; 以及螺线管致动器，其可被致动以发挥抵抗由弹性元件施加的推力的作用。 螺线管致动器由在模具中获得的整体组件形成，其中注入在芯体和彼此联接的线圈上，塑料材料一旦固化就限定了用于绝缘芯体的主体 一旦它已经凝固，从注射器本体形成一个具有芯和线圈的整体式组件。
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公开(公告)号：US07469843B2
公开(公告)日：2008-12-30
申请号：US11112812
申请日：2005-04-21
IPC分类号： B05B1/08
CPC分类号： F02M47/027 , F02M63/0026 , F02M2547/003
摘要： A control servo valve (8) is housed inside the casing (2) of an internal combustion engine fuel injector (1), and has a piezoelectric actuator (40), and a control chamber (13) having a fuel outlet passage (21); the outlet passage (21) comes out inside an annular chamber (34) defined by a fixed tubular portion (25) and by a shutter (32), which engages the tubular portion (25) in substantially fluidtight manner and is slid axially by the piezoelectric actuator (40) from a closed position, in which it closes the annular chamber (34) and is subjected to a zero axial resultant force by the fuel pressure, to an open position, in which the outlet passage (21) communicates with a discharge conduit.
摘要翻译： 控制伺服阀（8）容纳在内燃机燃料喷射器（1）的壳体（2）内，并具有压电致动器（40）和具有燃料出口通路（21）的控制室（13） ; 出口通道（21）从由固定管状部分（25）和快门（32）限定的环形室（34）内部出来，活门（32）以基本上流体密封的方式与管状部分（25）接合并且通过 压电致动器（40）从关闭位置闭合，其中闭合环形室（34）并经受燃料压力的零轴向合力到打开位置，在该打开位置，出口通道（21） 排放管道。
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公开(公告)号：US20070240682A1
公开(公告)日：2007-10-18
申请号：US11616695
申请日：2006-12-27
IPC分类号： F02M61/04
CPC分类号： F02M61/20 , F02M47/027
摘要： The fuel injector comprises a hollow casing, fixed on which is a nozzle having a nebulizer for the fuel under pressure, a needle axially mobile for opening and closing the nebulizer by means of a first end thereof, and a control rod, substantially coaxial with the needle and in direct engagement therewith. The needle is normally pushed into a closing position of the nozzle by the fuel under pressure acting on the rod, aided by a compression spring, which acts on the needle through a sleeve that is in axial engagement with a portion of the rod. The sleeve further comprises a surface designed to engage at the front and directly one end of the needle. The spring engages another surface of the sleeve so as to transmit its action directly onto the needle.
摘要翻译： 燃料喷射器包括中空壳体，固定在其上，喷嘴具有用于压力下的燃料的喷雾器，可轴向移动的针头，用于通过其第一端打开和关闭雾化器;以及控制杆，其基本上与 针并与其直接接合。 针通常被作用在杆上的压力下的燃料压入喷嘴的关闭位置，由压缩弹簧辅助，压缩弹簧通过与棒的一部分轴向接合的套筒作用在针上。 套筒还包括设计成接合在针的前部和直接一端的表面。 弹簧接合套筒的另一个表面，以便将其作用直接传递到针上。
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公开(公告)号：US07255289B2
公开(公告)日：2007-08-14
申请号：US11112786
申请日：2005-04-21
CPC分类号： F02M63/0015 , F02M47/027 , F02M63/0043 , F02M2547/003
摘要： A fuel injector (1) for an internal-combustion engine has a shell (2) provided with two opposite terminal portions; the first terminal portion (4) has an inlet (7) for supply of the fuel and is generally designed to extend outside the engine, whilst the second terminal portion (5) has a nozzle (9) communicating with said inlet (7), is designed to be housed in the engine and has, in the radial direction, dimensions smaller than those of the first portion (4); the injector (1) further has an actuator (16) and a servo valve (15) housed in the first terminal portion (4); the servo valve (15) is provided with an open/close element (32), which can slide axially, under the action of the actuator (16) and substantially in a fluid-tight way, in a seat (27) and is subjected to an axial resultant of pressure of the fuel that is substantially zero; the fuel inlet (7) is made laterally in an intermediate axial position between the actuator (16) and the nozzle (9).
摘要翻译： 一种用于内燃机的燃料喷射器（1）具有设置有两个相对端子部分的壳体（2） 第一端子部分（4）具有用于供应燃料的入口（7），并且通常设计成在发动机外部延伸，而第二端子部分（5）具有与所述入口（7）连通的喷嘴（9） 被设计成容纳在发动机中，并且在径向上具有比第一部分（4）的尺寸更小的尺寸; 喷射器（1）还具有容纳在第一端子部分（4）中的致动器（16）和伺服阀（15）。 所述伺服阀（15）设置有打开/关闭元件（32），所述打开/关闭元件（32）可在所述致动器（16）的作用下在所述座（27）中基本上以流体密封的方式轴向滑动并且被施加 到基本上为零的燃料的压力的轴向结果; 燃料入口（7）在致动器（16）和喷嘴（9）之间的中间轴向位置处横向制成。
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公开(公告)号：US20060032950A1
公开(公告)日：2006-02-16
申请号：US11171658
申请日：2005-06-30
IPC分类号： F02M51/00
CPC分类号： F02M47/027 , F02M61/12 , F02M63/0015 , F02M63/004 , F02M63/0043 , F02M63/007 , F02M63/0071 , F02M63/0073 , F02M63/008 , 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) which is opened/closed by a shutter (17) movable axially under the control of an electro-actuator (14); the servovalve (7) also has a fixed axial rod (33) having an outer lateral surface (34) through which the discharge passage (26) 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), is subjected to substantially zero resultant axial pressure by the fuel; and the control chamber (23) is bounded radially by a tubular portion (8) formed in one piece with said 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）和具有带有排放通道（26）的控制室（23）的伺服阀（7） 由在电致动器（14）的控制下可轴向移动的快门（17）打开/关闭; 伺服阀（7）还具有固定的轴向杆（33），其具有外侧表面（34），排出通道（26）从该外侧表面出来; 闸板17被安装到轴杆33上，以基本上流体密封的方式轴向滑动，并且当关闭排放通道26时，由燃料施加基本上为零的轴向压力; 并且所述控制室（23）由与所述轴向杆（33）一体形成的管状部分（8）沿径向限制。
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