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1.发明申请Fuel injection apparatus for internal combustion engines, with nozzle needles that can be actuated directly 审中-公开用于内燃机的燃油喷射装置，其中可以直接致动喷嘴针公开(公告)号：US20050224600A1
公开(公告)日：2005-10-13
申请号：US11101478
申请日：2005-04-08
申请人： Achim Brenk , Martin Kropp , Hans-Christoph Magel
发明人： Achim Brenk , Martin Kropp , Hans-Christoph Magel
CPC分类号： F02M47/027 , F02M45/086 , F02M57/025 , F02M59/105 , F02M61/1806 , F02M63/0015 , F02M63/0026 , F02M63/0029 , F02M63/004 , F02M63/0043 , F02M63/0045 , F02M2200/46
摘要： A fuel injection apparatus having a fuel injector fed by a high-pressure fuel source and having an injection valve with injection nozzles associated with coaxial inner and outer nozzle needles can be actuated in a pressure-dependent manner to open and close various injection cross sections at the injection nozzles. A pressure surface of the outer nozzle needle is associated with a closing chamber. To actuate the outer nozzle needle, a first on/off valve can connect the closing chamber to a low-pressure/return system. The inner nozzle needle has a control piston whose pressure surface protrudes into a second control chamber, and a second on/off valve is can connect the control chamber to the low-pressure/return system so that when the second on/off valve is actuated, the pressure is relieved in the second control chamber. This permits a separate actuation of the outer nozzle needle and inner nozzle needle.
摘要翻译： 具有燃料喷射器的燃料喷射装置，其具有由高压燃料源供给并且具有与同轴的内部和外部喷嘴针相关联的喷射喷嘴的喷射阀的燃料喷射器可以以压力依赖的方式致动以打开和关闭各种喷射截面 喷嘴。 外喷嘴针的压力表面与闭合室相关联。 为了致动外部喷嘴针，第一开/关阀可以将闭合室连接到低压/返回系统。 内部喷嘴针具有控制活塞，其压力表面突出到第二控制室中，并且第二开/关阀可以将控制室连接到低压/返回系统，使得当第二开/关阀被致动时 在第二控制室中释放压力。 这允许外部喷嘴针和内部喷嘴针的单独致动。
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公开(公告)号：US06883498B2
公开(公告)日：2005-04-26
申请号：US10477102
申请日：2002-05-10
申请人： Wolfgang Braun , Bernd Mahr , Martin Kropp , Hans-Christoph Magel
发明人： Wolfgang Braun , Bernd Mahr , Martin Kropp , Hans-Christoph Magel
CPC分类号： F02M57/026 , F02M47/027 , F02M57/025 , F02M59/105
摘要： A pressure booster of a fuel injection system includes a displaceable piston unit (30a, 31a), which on one end can be subjected to pressure via a pressure booster chamber on the low-pressure side and on the other end has a pressure booster chamber on the high-pressure side for fuel compression. The piston unit has a further piston cross section, which is reduced compared to the first piston cross section provided for imposing pressure, for embodying a differential chamber that is connectable to a leak fuel line. At least one control conduit connects the pressure booster chamber on the low-pressure side to the differential chamber, whose opening is closed or opened as a function of the motion of at least parts of the piston unit.
摘要翻译： 燃料喷射系统的增压器包括可移动的活塞单元（30a，31a），其一端可经由低压侧的增压室经受压力，另一端具有压力增压器 在高压侧用于燃料压缩。 活塞单元具有另外的活塞横截面，其与用于施加压力的第一活塞横截面相比减小，用于实现可连接到泄漏燃料管线的差速器室。 至少一个控制管道将低压侧的增压室与差压室相连接，其中开口关闭或打开作为活塞单元的至少一部分的运动的函数。
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公开(公告)号：US06752325B2
公开(公告)日：2004-06-22
申请号：US10022870
申请日：2001-12-20
IPC分类号： F02M4702
CPC分类号： F02M57/025 , F02M47/027 , F02M59/105
摘要： An injection nozzle of a stroke-controlled fuel injection device has a control chamber for triggering a nozzle needle and also has a nozzle chamber connectable to a pressure booster. The communication between a differential chamber of the pressure booster and a leakage line and the communication between a control chamber and a leakage line are controllable with the aid of a common valve.
摘要翻译： 行程控制的燃料喷射装置的喷嘴具有用于触发喷嘴针的控制室，并且还具有可连接到增压器的喷嘴室。 在普通阀门的帮助下，可以控制升压器的差压室与泄漏线之间的通信以及控制室和泄漏管线之间的连通。
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公开(公告)号：US06688277B1
公开(公告)日：2004-02-10
申请号：US09807881
申请日：2001-08-20
IPC分类号： F02B300
CPC分类号： F02M57/026 , F02M41/06 , F02M45/00 , F02M47/027 , F02M57/025 , F02M59/105 , F02M63/0225
摘要： In a fuel injection system for an internal combustion engine, in which fuel at at least two differently high fuel pressures can be injected via injectors into the combustion chamber of the engine, parallel to a bypass line a hydraulic pressure booster is provided for generating the higher fuel pressure; the pressure booster is actuatable and deactuatable via a valve unit. Since the pressure booster is not constantly in operation, and the losses from friction are also reduced, the efficiency is improved.
摘要翻译： 在用于内燃机的燃料喷射系统中，其中可以通过喷射器将至少两个不同高的燃料压力的燃料喷射到发动机的燃烧室中，平行于旁路管线提供液压增压器以产生较高的 燃油压力 增压器可通过阀门单元启动和停用。 由于增压器不是不断运行，并且摩擦损失也降低，所以效率提高。
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公开(公告)号：US06619263B1
公开(公告)日：2003-09-16
申请号：US09807923
申请日：2001-08-20
IPC分类号： F02M4100
CPC分类号： F02M63/029 , F02M41/16 , F02M45/02 , F02M45/04 , F02M47/027 , F02M57/025 , F02M59/105 , F02M63/0007
摘要： In a fuel injection system for an internal combustion engine, in which the fuel pumped by means of a high-pressure pump can be injected into the combustion chamber of the engine at at least two different, high fuel pressure via injectors, between the high-pressure pump and the injectors, at least one central pressure booster unit for all the injectors is provided. The pressure booster unit is triggerable in a targeted way as need, and as a result the fuel which is at the higher pressure can be better regulated in quantity, and the losses from friction can be reduced accordingly as well.
摘要翻译： 在用于内燃机的燃料喷射系统中，其中通过高压泵泵送的燃料可以通过喷射器以至少两个不同的高燃料压力喷射到发动机的燃烧室中， 压力泵和喷射器，提供用于所有喷射器的至少一个中央压力增压器单元。 增压器单元可根据需要以目标方式进行触发，因此可以更好地调节处于较高压力的燃料，从而可以相应地降低摩擦损失。
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公开(公告)号：US07083113B2
公开(公告)日：2006-08-01
申请号：US10503445
申请日：2003-04-09
IPC分类号： F02M47/02
CPC分类号： F02M59/105 , F02M57/025 , F02M61/205 , F02M2200/24 , F02M2200/304
摘要： A fuel injection apparatus for injecting fuel into the combustion chambers of an internal combustion engine. includes a high pressure accumulator, a pressure booster, and a metering valve. The pressure booster includes a working chamber and a control chamber that are separated from each other by an axially movable piston. A pressure change in the control chamber produces a pressure change in a compression chamber that acts on a nozzle chamber via a fuel inlet. The nozzle chamber encompasses a nozzle needle. A nozzle spring chamber that acts on the injection valve element can be filled on the high-pressure side via a line that leads from the compression chamber and contains an inlet throttle restriction. On the outlet side, the nozzle spring chamber is connected to a chamber of the pressure booster via a line that contains an outlet throttle restriction.
摘要翻译： 一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射装置。 包括高压蓄能器，增压器和计量阀。 增压器包括通过轴向移动的活塞彼此分离的工作室和控制室。 控制室中的压力变化在通过燃料入口作用在喷嘴室上的压缩室中产生压力变化。 喷嘴室包括喷嘴针。 作用于喷射阀元件的喷嘴弹簧室可以通过从压缩室引出的管线填充在高压侧，并且包含入口节流阀限制。 在出口侧，喷嘴弹簧室通过包含出口节流阀限制的管路连接到增压器的室。
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公开(公告)号：US06895935B2
公开(公告)日：2005-05-24
申请号：US10343217
申请日：2002-05-18
申请人： Wolfgang Braun , Bernd Mahr , Martin Kropp , Hans-Christoph Magel
发明人： Wolfgang Braun , Bernd Mahr , Martin Kropp , Hans-Christoph Magel
CPC分类号： F02M45/12 , F02M47/027 , F02M57/025
摘要： A fuel injection system includes a pressure booster having a displaceable piston which can be subjected to pressure via a pressure booster chamber on the low-pressure side for compressing the fuel in a pressure booster chamber on the high-pressure side to be delivered to an injector. The stroke of the piston is controllable by the pressure in a differential chamber of the pressure booster and is used to vary the fuel pressure delivered to the injector. Means for continuously variable definition of the inlet cross section to the pressure booster chamber of the pressure booster on the low-pressure side or of the outlet cross section from the differential chamber of the pressure booster are provided.
摘要翻译： 燃料喷射系统包括具有可移动活塞的增压器，其可经由低压侧的增压室经受压力，用于压缩高压侧的增压室中的燃料以被输送到喷射器 。 活塞的行程可以通过增压器的差速器室中的压力来控制，并且用于改变输送到喷射器的燃料压力。 提供了用于连续地将来自压力增压器的差压室的低压侧或出口横截面上的增压器的增压室的入口横截面变化的装置。
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公开(公告)号：US06718947B1
公开(公告)日：2004-04-13
申请号：US09642151
申请日：2000-08-21
IPC分类号： F02M4100
CPC分类号： F02M63/0007 , F02M41/06 , F02M41/16 , F02M45/02 , F02M45/04 , F02M47/027 , F02M59/105 , F02M63/0003 , F02M63/0225 , F02M2200/21 , F02M2200/40
摘要： A method for injecting fuel at at least two different high fuel pressures via injectors into the combustion chamber of an internal combustion engine. The fuel injection at the higher fuel pressure takes place by pressure-controlled features, during the fuel injection, at least one lower fuel pressure is generated. To that end, a fuel injection system has one local diversion unit for each injector, and the diversion unit can be activated or deactivated via a valve unit.
摘要翻译： 一种通过喷射器将至少两种不同的高燃料压力的燃料喷射到内燃机的燃烧室中的方法。 在较高燃料压力下的燃料喷射通过压力控制特征进行，在燃料喷射期间，产生至少一个较低的燃料压力。 为此，燃料喷射系统对于每个喷射器具有一个局部分流单元，并且分流单元可以通过阀单元被激活或去激活。
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公开(公告)号：US06532938B1
公开(公告)日：2003-03-18
申请号：US09807374
申请日：2001-05-21
IPC分类号： F02M6300
CPC分类号： F02M63/06 , F02M45/04 , F02M55/002 , F02M61/08 , F02M61/205 , F02M63/0007
摘要： A fuel injection system includes a pressure storage chamber and one injector assigned to each cylinder, which injector can be connected to the pressure storage chamber via a pressure line that includes a metering valve. Using a single 2/2-way valve as a metering valve per cylinder makes for a more-economical manufacture of a fuel system, especially for small engines. The fuel injection is done under pressure control.
摘要翻译： 燃料喷射系统包括压力存储室和分配给每个气缸的一个喷射器，该喷射器可以经由包括计量阀的压力管线连接到压力存储室。 使用单个2/2阀作为每个气缸的计量阀，可以更经济地制造燃油系统，特别是对于小型发动机。 燃油喷射在压力控制下完成。
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公开(公告)号：US06520152B1
公开(公告)日：2003-02-18
申请号：US09830014
申请日：2001-06-04
IPC分类号： F02M6302
CPC分类号： F02M63/0007 , F02D2041/3881 , F02M41/16 , F02M45/02 , F02M45/04 , F02M47/027 , F02M63/0225 , F02M2200/21 , F02M2200/40
摘要： In a fuel injection system for an internal combustion engine, in which fuel can be injected at least two different, high fuel pressures, via injectors, into the combustion chamber of the engine, having a central first pressure reservoir for the higher fuel pressure and a central second pressure reservoir, supplied from the first pressure reservoir, in which by regulation of its fuel delivery, the lower fuel pressure is maintained, and having a valve unit for switchover between the higher and the lower fuel, the valve unit for switchover between the higher and the lower fuel is provided locally for each injector. With this injection system, improved metering of the lower fuel pressure is possible.
摘要翻译： 在用于内燃机的燃料喷射系统中，其中燃料可以通过喷射器至少两个不同的高燃料压力喷射到发动机的燃烧室中，该燃烧室具有用于较高燃料压力的中心第一压力储存器和 中央第二压力储存器，其由第一压力储存器供应，其中通过调节其燃料输送，维持较低的燃料压力，并具有用于在较高和较低燃料之间切换的阀单元，用于在 每个喷射器局部设置较低的燃料。 使用这种注射系统，可以改善燃料压力较低的计量。
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