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1. 发明授权

US09777684B2 Fuel injection valve for internal combustion engines 有权
公开(公告)号：US09777684B2
公开(公告)日：2017-10-03
申请号：US14411895
申请日：2013-05-15
申请人： Robert Bosch GmbH
发明人： Hans-Christoph Magel , Andreas Gruenberger
IPC分类号： F02M47/02 , F02M63/00 , F02M61/20
CPC分类号： F02M47/02 , F02M47/027 , F02M61/20 , F02M63/0029 , F02M63/0042 , F02M63/0043 , F02M63/0075 , F02M2547/003
摘要： The invention relates to a fuel injection valve comprising a housing (1) in which pressure is applied to a nozzle needle (8), in a control chamber (28), at least indirectly with a closing force in the direction of a valve seat (10). The pressure in the control chamber (28) can be adjusted using a control valve (40) as said control chamber (28) is able to be connected to a low pressure chamber (46) via an outlet restrictor (31) and be filled with fuel at high pressure via an inlet restrictor (30). A longitudinally-displaceable control piston (29) is arranged in the control chamber (28) and divides said chamber (28) into a first control sub-chamber and a second control sub-chamber (228), the first control sub-chamber (128) being able to be connected to the low pressure chamber (46) by means of said outlet restrictor (31). A sealing surface (38) is formed on the control piston (29) and interacts with a sealing seat (39) in the control chamber (28) such that the inlet restrictor (30) is hydraulically disconnected from the second control sub-chamber (228) when the sealing surface (38) comes to rest against the sealing seat (39). Said first control sub-chamber (128) and second control sub-chamber (228) are constantly hydraulically interconnected by means of a restrictor connection (34).

2. 发明申请

US20150060576A1 FUEL INJECTOR 审中-公开
标题翻译：喷油器
公开(公告)号：US20150060576A1
公开(公告)日：2015-03-05
申请号：US14468777
申请日：2014-08-26
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Yoshiharu NONOYAMA , Hiroaki NAGATOMO
IPC分类号： F02M47/02 , F02M61/04
CPC分类号： F02M47/027 , F02M51/0685 , F02M61/042 , F02M61/1886 , F02M61/1893 , F02M63/0017 , F02M63/0029 , F02M2200/46
摘要： A fuel injector includes a body, a main valve body, a sub valve body, an electric actuator, and a valve-opening force transmission mechanism. The body houses a main passage through which fuel flows to an injection, and a sub passage branched from the main passage and through which the fuel flows to the injection port. The main valve body opens or closes the main passage, and the sub valve body opens or closes the sub passage. The electric actuator applies a valve-opening force to the sub valve body. The valve-opening force transmission mechanism transmits the valve-opening force of the sub valve body to the main valve body to open the main valve body in a condition that a valve-opening stroke of the sub valve body is greater than or equal to a predetermined amount.
摘要翻译：燃料喷射器包括主体，主阀体，副阀体，电致动器和阀打开力传递机构。主体容纳燃料流入注入口的主通道，以及从主通道分支的副通道，燃料通过该通道流入注入口。主阀体打开或关闭主通道，副阀体打开或关闭副通道。电致动器向副阀体施加开阀力。阀开启力传递机构将副阀体的开阀力传递到主阀体，以使主阀体的开阀行程大于或等于a 预定量。

3. 发明授权

US08434459B2 Fuel injection system 有权
标题翻译：燃油喷射系统
公开(公告)号：US08434459B2
公开(公告)日：2013-05-07
申请号：US12920326
申请日：2008-03-04
申请人： Sergi Yudanov
发明人： Sergi Yudanov
IPC分类号： F02M37/00 , F02M37/04
CPC分类号： F02M63/0005 , F02M21/0245 , F02M37/0052 , F02M55/002 , F02M63/0029 , F02M63/0045 , F02M63/0215 , F02M63/0265 , Y02T10/32
摘要： A fuel injection system for an internal combustion engine includes an engine management system (EMS), a return line connected to a low-pressure fuel system, a common rail for storing and supplying a relatively high-pressure fuel to an injector, and an automatic isolating valve installed between the common rail and the injector. The injector has a nozzle for injecting fuel into the engine. A valve is operated by the EMS and installed between the common rail and the nozzle. A spill valve is operated by the EMS and connected by its inlet to the outlet of the valve and by its outlet to the return line. A check valve is installed between the nozzle and the return line, the inlet of the check valve being connected to the inlet of the nozzle.
摘要翻译：一种用于内燃机的燃料喷射系统包括发动机管理系统（EMS），连接到低压燃料系统的返回线，用于向喷射器存储和供应相对高压燃料的共轨，以及自动安装在共轨和喷油器之间的隔离阀。喷射器具有用于将燃料喷射到发动机中的喷嘴。阀由EMS操作并安装在共轨和喷嘴之间。泄漏阀由EMS操作，并通过其入口连接到阀的出口，并通过其出口连接到返回管线。在喷嘴和返回管路之间安装止回阀，止回阀的入口连接到喷嘴的入口。

4. 发明申请

US20120125451A1 VALVE SYSTEM 有权
标题翻译：阀门系统
公开(公告)号：US20120125451A1
公开(公告)日：2012-05-24
申请号：US13321236
申请日：2010-05-25
申请人： Sebastian Jansen
发明人： Sebastian Jansen
IPC分类号： F16K31/02
CPC分类号： F02M45/086 , F02M61/042 , F02M61/1893 , F02M63/0029 , F02M63/008 , F02M2200/46 , Y10T137/7761
摘要： A valve system is described for high-pressure fuel injection, including a pilot valve which has a pilot valve needle, a pilot valve seat and a pressure chamber, an electromagnetic actuator for actuating the pilot valve needle, and a main valve which has at least one spray hole, a closing element, a support piston and a pressure compensating chamber, the closing element having a receiving chamber for the purpose of accommodating the support piston and the pressure compensating chamber being provided in the receiving chamber of the closing element, the pilot valve seat being provided on the closing element, and the pilot valve establishing a connection between the pressure chamber and the pressure compensating chamber for the purpose of reducing an opening force for the main valve.
摘要翻译：描述了一种用于高压燃料喷射的阀系统，包括具有先导阀针，先导阀座和压力室的先导阀，用于致动先导阀针的电磁致动器和至少具有至少一个喷射孔，一个关闭元件，一个支撑活塞和一个压力补偿室，该闭合元件具有用于容纳支撑活塞和压力补偿室的容纳室，该压力补偿室设置在关闭元件的接收室中，阀座设置在关闭元件上，并且先导阀为了减小主阀的打开力而建立压力室和压力补偿室之间的连接。

5. 发明申请

US20100096473A1 Variable flow rate valve for mechnically actuated fuel injector 审中-公开
标题翻译：用于机动式燃油喷射器的可变流量阀
公开(公告)号：US20100096473A1
公开(公告)日：2010-04-22
申请号：US12288422
申请日：2008-10-20
申请人： Dana R. Coldren , Koti R. Padarthy , Michael E. Sattler , Victor I. Yacoub
发明人： Dana R. Coldren , Koti R. Padarthy , Michael E. Sattler , Victor I. Yacoub
IPC分类号： F02M47/02
CPC分类号： F02M57/023 , F02M45/08 , F02M47/027 , F02M63/0019 , F02M63/0029 , F02M63/0035 , F02M63/0063 , F02M2200/28
摘要： A mechanically actuated electronically controlled fuel injector (MEUI) includes a first electrical actuator that controls the position of a spill valve, and a second electrical actuator to control pressure on a closing hydraulic surface associated with a directly operated needle valve. The fuel injector is actuated via rotation of a cam to move a plunger to displace fuel from a fuel pumping chamber either to a spill passage, or at high pressure out of a nozzle outlet of the fuel injector for an injection event. The minimum controllable fuel injection quantity, especially as it relates to small closely coupled post injections following a large main injection, is accomplished by the inclusion of a variable flow rate valve that restricts fluid flow from a needle control chamber toward a drain, but is relatively unrestricted to high pressure fluid flow toward the needle control chamber. The inclusion of the variable flow rate valve slows the rate at which pressure drops in the needle control chamber to commence an injection event, but permits a fast rate at which pressure may build in the needle control chamber to end an injection event. The result is a smaller post injection quantity and more controllability over the dwell time between injection events.
摘要翻译：机械致动的电控燃料喷射器（MEUI）包括控制溢流阀的位置的第一电致动器和用于控制与直接操作的针阀相关联的关闭液压表面上的压力的第二电致动器。燃料喷射器通过凸轮的旋转被致动以移动柱塞以将燃料从燃料泵送室移动到溢流通道，或者在高压下从用于喷射事件的燃料喷射器的喷嘴出口移出。最小可控燃料喷射量，特别是与大型主喷射之后的小型紧密连接的后喷射相关的最小可控燃料喷射量是通过包括限制流体从针控制室流向排水管的可变流量阀来实现的，但是相对不受高压流体流向针控制室的限制。包含可变流量阀减慢了针控制室中的压力下降的速率，以开始注射事件，但允许在针控制室中可能产生压力以结束注射事件的快速速率。结果是在喷射事件之间的停留时间后更小的后喷射量和更高的可控性。

6. 发明授权

US07549410B2 Fuel injection system suitable for low-viscosity fuels 有权
标题翻译：燃油喷射系统适用于低粘度燃料
公开(公告)号：US07549410B2
公开(公告)日：2009-06-23
申请号：US12088709
申请日：2005-10-19
申请人： Sergi Yudanov
发明人： Sergi Yudanov
IPC分类号： F02M37/04 , F02M37/00
CPC分类号： F02M63/0005 , F02M21/0239 , F02M21/0245 , F02M45/00 , F02M55/002 , F02M61/08 , F02M61/205 , F02M63/0029 , F02M63/0043 , F02M63/0045 , F02M63/0047 , F02M2200/70 , Y02T10/32
摘要： A fuel injection system for an internal combustion system includes an Engine Management System (EMS), a fuel feed pump, a return line, a high-pressure pump, supplying fuel under pressure to a common rail, a hydraulically operated valve forming an outlet chamber connected to the common rail and a control chamber, the valve being designed such that, in its closed position, the valve prevents the flow out of the outlet chamber, and an electrically operated pilot valve. A nozzle with a resilient member that biases the nozzle towards closing is connected to the outlet of the hydraulically operated valve in such a way that pressure at the outlet of the hydraulically operated valve tends to overcome the force of the resilient member and open the nozzle. An electrically operated spill valve is connected between the outlet of the hydraulically operated valve and the return line.
摘要翻译：一种用于内燃系统的燃料喷射系统，包括发动机管理系统（EMS），燃料供给泵，回流管路，高压泵，将压力下的燃料供给共轨，液压操作阀，形成出口室连接到共轨和控制室，阀被设计成使得在其关闭位置，阀防止流出出口室和电操作的先导阀。具有将喷嘴偏压成关闭的弹性构件的喷嘴连接到液压操作阀的出口，使得液压操作阀的出口处的压力趋于克服弹性构件的力并打开喷嘴。电动溢流阀连接在液压操作阀的出口和回流管之间。

7. 发明授权

US07513440B2 Pressure-boosted fuel injection device comprising an internal control line 失效
标题翻译：包括内部控制线的增压燃料喷射装置
公开(公告)号：US07513440B2
公开(公告)日：2009-04-07
申请号：US10531166
申请日：2003-10-07
申请人： Hans-Christoph Magel
发明人： Hans-Christoph Magel
IPC分类号： F02M47/02
CPC分类号： F02M57/026 , F02M47/025 , F02M47/027 , F02M57/025 , F02M61/205 , F02M63/0005 , F02M63/0007 , F02M63/0015 , F02M63/0029 , F02M63/0043 , F02M63/0045
摘要： The invention relates to a fuel injection device with a multi-part injector body containing a pressure booster that can be actuated by means of a differential pressure chamber, and includes a pressure booster piston that seals a working chamber off from the differential pressure chamber. An on-off valve disposed above the injector body can actuate the fuel injection device. A pressure change in the differential pressure chamber occurs via a central control line that extends through the pressure booster piston of the pressure booster.
摘要翻译：本发明涉及一种具有多部分喷射器主体的燃料喷射装置，该多部分喷射器主体包括可通过差压室致动的增压器，并且包括将工作室与压差室隔离的增压活塞。设置在喷射器主体上方的开关阀可以致动燃料喷射装置。差压室中的压力变化通过延伸通过增压器的增压器活塞的中央控制线发生。

8. 发明申请

US20080202471A1 Fuel Injection System Suitable for Low-Viscosity Fuels 审中-公开
标题翻译：适用于低粘度燃料的燃油喷射系统
公开(公告)号：US20080202471A1
公开(公告)日：2008-08-28
申请号：US12088709
申请日：2005-10-19
申请人： Sergi Yudanov
发明人： Sergi Yudanov
IPC分类号： F02M69/54 , F02M69/46 , F02D7/00
CPC分类号： F02M63/0005 , F02M21/0239 , F02M21/0245 , F02M45/00 , F02M55/002 , F02M61/08 , F02M61/205 , F02M63/0029 , F02M63/0043 , F02M63/0045 , F02M63/0047 , F02M2200/70 , Y02T10/32
摘要： A fuel injection system for an internal combustion system includes an Engine Management System (EMS), a fuel feed pump, a return line, a high-pressure pump, supplying fuel under pressure to a common rail, a hydraulically operated valve forming an outlet chamber connected to the common rail and a control chamber, the valve being designed such that, in its closed position, the valve prevents the flow out of the outlet chamber, and an electrically operated pilot valve. A nozzle with a resilient member that biases the nozzle towards closing is connected to the outlet of the hydraulically operated valve in such a way that pressure at the outlet of the hydraulically operated valve tends to overcome the force of the resilient member and open the nozzle. An electrically operated spill valve is connected between the outlet of the hydraulically operated valve and the return line.
摘要翻译：一种用于内燃系统的燃料喷射系统，包括发动机管理系统（EMS），燃料供给泵，回流管路，高压泵，将压力下的燃料供给共轨，液压操作阀，形成出口室连接到共轨和控制室，阀被设计成使得在其关闭位置，阀防止流出出口室和电操作的先导阀。具有将喷嘴偏压成关闭的弹性构件的喷嘴连接到液压操作阀的出口，使得液压操作阀的出口处的压力趋于克服弹性构件的力并打开喷嘴。电动溢流阀连接在液压操作阀的出口和回流管之间。

9. 发明授权

US07383817B2 Injector 有权
标题翻译：注射器
公开(公告)号：US07383817B2
公开(公告)日：2008-06-10
申请号：US11713015
申请日：2007-03-02
申请人： Yasuhiro Horiuchi , Yutaka Miyamoto
发明人： Yasuhiro Horiuchi , Yutaka Miyamoto
IPC分类号： F02M57/02 , F02M57/00
CPC分类号： F02M57/025 , F02M47/025 , F02M57/026 , F02M63/0029 , F02M63/0047
摘要： An injector includes a boosting mechanism and a nozzle. The boosting mechanism boosts fuel, and the nozzle injects and supplies the fuel boosted by the boosting mechanism. The boosting mechanism includes a tubular piston and a column piston. The tubular piston has a bore, which extends through the tubular piston in a direction of a longitudinal axis of the tubular piston. The column piston is loosely received by the tubular piston and has an end portion, which projects from the tubular piston, and which is engaged with the tubular piston. The tubular piston is slidably received by a first cylinder. The end portion of the column piston is slidably received by a second cylinder, which is provided generally coaxially to the first cylinder, and which has a diameter different from that of the first cylinder.
摘要翻译：喷射器包括升压机构和喷嘴。增压机构增加燃料，并且喷嘴喷射并提供由增压机构增压的燃料。增压机构包括管状活塞和柱塞活塞。管状活塞具有孔，其沿管状活塞的纵向轴线的方向延伸穿过管状活塞。柱形活塞被管状活塞松动地容纳，并且具有从管状活塞突出并与管状活塞接合的端部。管状活塞由第一气缸可滑动地容纳。柱式活塞的端部可滑动地被第二圆柱体容纳，该第二圆筒与第一圆柱体大致同轴地设置，并且具有不同于第一圆柱体的直径。

10. 发明申请

US20080092850A1 Hydraulically Driven Pump-Injector With Controlling Mechanism For Internal Combustion Engines 审中-公开
标题翻译：液压驱动泵 - 注射器与内燃机控制机构
公开(公告)号：US20080092850A1
公开(公告)日：2008-04-24
申请号：US11658031
申请日：2004-07-20
申请人： Boris Feinleib
发明人： Boris Feinleib
IPC分类号： F02M57/02 , F02M59/00
CPC分类号： F02M57/025 , F02M57/026 , F02M63/0024 , F02M63/0029 , F02M63/004 , F02M63/0047 , F02M63/0049
摘要： Hydraulically driven pump-injector with controlling mechanism for internal combustion engines, primarily for diesel, distinguished via the fact that in the pump-injector body (1) above needle (9) additional cylindrical cavity (69) is made, in which locking piston (8) is mounted, resting upon needle (9), the diameter of said additional cavity and hence the piston diameter being selected on the basis of the formulae disclosed in the invention. Space (24) formed above the piston face is periodically connected through distribution channel (25) and valve (33) of the distributing device to the source of the actuating fluid and the drain tank, alternately. This ensures a decrease in the delay of the operation on the nozzle needle compared to the signal from the electronic control unit (travel of the valve of the distributing device), required for obtaining small time delays between the injections in multiphase injection, as well as increased stability of the idle running of the engine. In accordance with the invention, penetration of gases from the combustion chamber to the fuel system and leaking of fuel into the combustion chamber when the nozzle needle “hangs”, or “freezes” in it's upper open position, are also prevented due to the fact that the fuel (actuating fluid) is supplied to the under-plunger cavity (19) through central channel (33) in the body, which stops locking piston (8) of needle (9) when the latter “hangs”. The invention also allows for increasing average injection pressures and implementing “rate shaping”.
摘要翻译：具有主要用于柴油的内燃机的控制机构的液压驱动泵 - 注射器通过以下事实来区分：在泵（9）上的泵 - 注射器主体（1）中制成另外的圆柱形空腔（69），其中锁定活塞 8）安装在基座（9）上，所述附加空腔的直径，因此根据本发明公开的公式来选择活塞直径。形成在活塞面上方的空间（24）通过分配装置的分配通道（25）和阀（33）周期性地连接到驱动流体源和排放槽。这确保了与多次注射中的注射之间获得小的时间延迟所需的来自电子控制单元的信号（分配装置的阀的行程）相比，喷嘴针上的操作的延迟减小，以及提高发动机怠速行驶的稳定性。根据本发明，当喷嘴针“悬挂”或“冻结”在其上部打开位置时，气体从燃烧室渗透到燃料系统中并将燃料泄漏到燃烧室中，由于事实燃料（致动流体）通过主体中的中心通道（33）供给到柱塞下空腔（19），当后者“挂起”时，停止锁定针（9）的活塞（8）。本发明还允许增加平均注射压力并实施“速率整形”。

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