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21.发明授权公开(公告)号：US07444988B2
公开(公告)日：2008-11-04
申请号：US11113502
申请日：2005-04-25
IPC分类号： F02M57/02
CPC分类号： F02M59/366 , F02M47/027 , F02M59/102 , F02M59/466 , F02M63/0225
摘要： The injection system (1) comprises a pump (7) designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail (6), for supplying a plurality of injectors (5). The pump (7) comprises at least one pumping element (18) actuated with reciprocating motion with a compression stroke (Pi-Ps) at a sinusoidal speed (24), in synchronism with each step of fuel injection. The injection system (1) comprises at least one by-pass solenoid valve (14), which is controlled by a chopper control unit (16, 28) for modulating the delivery of the pumping element (18) by varying both the instant of start (To) and the instant of end (T1) of delivery during the compression stroke (Pi-Ps), in such a way that the delivery is synchronous with the injection phase.
摘要翻译： 注射系统（1）包括设计成将高压燃料（例如由公共导轨（6）形成）用于供应多个喷射器（5）的积聚体积的泵（7）。 泵（7）包括与燃料喷射的每个步骤同步的以正弦速度（24）与压缩冲程（Pi-Ps）的往复运动致动的至少一个泵送元件（18）。 注射系统（1）包括至少一个旁路电磁阀（14），其由斩波控制单元（16,28）控制，用于通过改变启动时刻来调节泵送元件（18）的输送 （Pi）和压缩行程（Pi-Ps）期间的交货时间（T 1）和交货时间（T 1 SUB）之间的差异。
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公开(公告)号：US07299998B2
公开(公告)日：2007-11-27
申请号：US11171658
申请日：2005-06-30
IPC分类号： F02M41/16
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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公开(公告)号：US07228844B2
公开(公告)日：2007-06-12
申请号：US11111744
申请日：2005-04-22
IPC分类号： F02M37/04
CPC分类号： F02M63/0225 , F02D41/3845 , F02M59/34 , F02M59/366
摘要： The injection system has a pump for supplying high-pressure fuel to a storage volume for supplying a number of injectors. The pump has at least one reciprocating pumping element performing a compression stroke synchronously with each fuel injection. The injection system has at least one control device for controlling the amount of fuel supplied by the pump to the storage volume, and which is controlled by a chopper control unit to modulate the fuel volume introduced into the compression chamber during the intake stroke (Ps-Pi). The delivery start instant of the pumping element during the compression stroke being unequivocally defined by the fuel volume introduced.
摘要翻译： 注射系统具有用于将高压燃料供应到用于供应多个喷射器的存储容积的泵。 泵具有与每个燃料喷射同步地执行压缩冲程的至少一个往复泵送元件。 喷射系统具有至少一个控制装置，用于控制由泵供给到储存容积的燃料量，并由斩波控制单元控制，以调节在进气冲程期间引入压缩室的燃料量（Ps- Pi）。 在压缩冲程期间泵送元件的输送开始瞬间被引入的燃料体积明确地限定。
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公开(公告)号：US07131428B2
公开(公告)日：2006-11-07
申请号：US11109789
申请日：2005-04-20
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D41/403 , F02D2041/2027
摘要： A method is provided for controlling fuel injection in an internal-combustion engine provided with an electroinjector, including an electroactuator, an injection nozzle, and a pin, which is movable along an opening stroke and a closing stroke for opening/closing the nozzle under the control of the electroactuator and according to the supply pressure of the fuel into the electroinjector. The method supplies to the electroactuator a first electrical command and at least a second electrical command, which are sufficiently close to one another as to displace the pin with a profile of motion without any discontinuity in time, and such as to cause the pin to perform a first opening displacement and, respectively, a second opening displacement. Between one injection and the next, at least one among the following quantities is varied as a function of operating parameters of the engine: duration of at least one among the electrical commands; number of the electrical commands; and distance in time between the electrical commands.
摘要翻译： 提供了一种用于控制设置有电喷射器的内燃机中的燃料喷射的方法，所述电喷射器包括可沿打开行程运动的电致动器，喷嘴和销，以及用于打开/关闭喷嘴下方的喷嘴的关闭行程 电动执行器的控制和根据燃料进入电喷射器的供应压力。 该方法向电致动器提供第一电命令和至少第二电命令，其彼此足够接近以使运动轮廓移动而没有任何时间上的不连续性，并且使得引脚执行 第一开口位移和第二开口位移。 在一次注射和下一次注射之间，以下量中的至少一个随着发动机的操作参数而变化：电气命令中的至少一个的持续时间; 电气指令数量; 和电气指令之间的时间距离。
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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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26.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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27.发明授权公开(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：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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29.发明授权公开(公告)号：US07980223B2
公开(公告)日：2011-07-19
申请号：US12261650
申请日：2008-10-30
IPC分类号： F02M37/04
CPC分类号： F02M59/366 , F02M47/027 , F02M59/102 , F02M59/466 , F02M63/0225
摘要： The injection system comprises a pump designed to send fuel at high pressure to an accumulation volume, for example formed by a common rail, for supplying a plurality of injectors. The pump comprises at least one pumping element actuated with reciprocating motion with a compression stroke at a sinusoidal speed, in synchronism with each step of fuel injection. The injection system comprises at least one by-pass solenoid valve, which is controlled by a chopper control unit for modulating the delivery of the pumping element by varying both the instant of start and the instant of end of delivery during the compression stroke, in such a way that the delivery is synchronous with the injection phase.
摘要翻译： 注射系统包括设计成将高压燃料（例如由公共轨道形成的蓄积体积）用于供应多个喷射器的泵。 该泵包括与每个燃料喷射步骤同步的以正弦速度的压缩行程以往复运动致动的至少一个泵送元件。 喷射系统包括至少一个旁路电磁阀，其由斩波器控制单元控制，用于通过在压缩冲程期间改变开始时刻和输送结束时刻来调节泵送元件的输送， 一种交付方式与注入阶段同步。
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公开(公告)号：US07748644B2
公开(公告)日：2010-07-06
申请号：US11111002
申请日：2005-04-21
CPC分类号： F02M63/004 , F02M47/027 , F02M55/004 , F02M61/168 , F02M63/008 , F02M2200/16 , F02M2200/28 , F02M2547/003
摘要： A fuel injector for an internal-combustion engine houses, in a hollow injector body of its own, an injection-control valve, the valve body of which delimits, together with the injector body, an annular chamber designed to receive a fuel under pressure, and insulated in a fluid-tight way by a seal member carried by the valve body and made of plastic material.
摘要翻译： 用于内燃机的燃料喷射器在其本身的空心喷射器主体中容纳喷射控制阀，该喷射控制阀与喷射器主体一起限定设计成在压力下接收燃料的环形室， 并通过由阀体承载并由塑料材料制成的密封构件以流体密封的方式绝缘。
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