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公开(公告)号：US20100175665A1
公开(公告)日：2010-07-15
申请号：US12686606
申请日：2010-01-13
CPC分类号： F02M47/027 , F02M61/12 , F02M61/167 , F02M63/0225
摘要： The invention relates to a fuel injector, in particular a common rail injector, for injecting fuel into a combustion chamber of an internal combustion engine. The fuel injector has a multi-part injection valve element, which is adjustable between a closing position and an opening position and includes a first part and at least one second part that is adjustable relative to the first part. The first and second parts are coupled to one another via a hydraulic coupler volume. According to the invention, it is provided that the first part is guided in the second part, or the second part is guided in the first part, and that the coupler volume communicates with an injector volume via at least one throttle arrangement. The throttle arrangement is embodied such that the volumetric through flow increases only disproportionately little with an increasing pressure difference between the coupler volume and the injector volume.
摘要翻译： 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器，特别是共轨喷射器。 燃料喷射器具有多部分喷射阀元件，其可在关闭位置和打开位置之间调节，并且包括可相对于第一部件调节的第一部分和至少一个第二部分。 第一和第二部分通过液压耦合器体积相互耦合。 根据本发明，提供了第一部分在第二部分中被引导，或者第二部分在第一部分中被引导，并且联接器体积经由至少一个节流装置与喷射器体积连通。 节流装置被实施为使得体积通过流量随着耦合器体积和注射器体积之间的增加的压力差而仅增加很小。
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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：US08864054B2
公开(公告)日：2014-10-21
申请号：US13055599
申请日：2009-05-27
IPC分类号： F02M61/10 , F02M59/00 , F02M61/00 , F02M63/00 , F02M47/00 , F02M61/20 , F02M47/02 , F02M41/16 , F02M61/12 , F02M57/02
CPC分类号： F02M47/027 , F02M57/025 , F02M61/12 , F02M63/0005 , F02M63/0015 , F02M63/008 , F02M2200/304 , F02M2200/703 , F02M2200/704 , F02M2200/705 , F02M2547/003
摘要： The invention relates to a fuel injector and, in particular, to a common-rail injector for injecting fuel into a combustion chamber of an internal combustion engine with a multi-part injection valve element, which can be adjusted between an open position and a closed position. A first part and a second part of the injection valve element are coupled to one another via a hydraulic coupler, which is bounded radially by a first guide for the first part and by a second guide for the second part. According to the invention, at least some sections of the first and the second guide are surrounded at their outer radii by fuel under high pressure, and the pressure realized in the hydraulic coupler is lower than the pressure radially outside the guides.
摘要翻译： 本发明涉及一种燃料喷射器，特别涉及一种共轨喷射器，用于将燃料喷射到具有多部分喷射阀元件的内燃机的燃烧室中，所述多部分喷射阀元件可以在打开位置和关闭状态之间调节 位置。 喷射阀元件的第一部分和第二部分经由液压耦合器彼此联接，液压耦合器由第一部分的第一引导件和第二部分的第二引导件径向限制。 根据本发明，第一和第二引导件的至少一些部分在其外半径处被高压燃料包围，并且液压联轴器中实现的压力低于引导件的径向外侧的压力。
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公开(公告)号：US08302888B2
公开(公告)日：2012-11-06
申请号：US12686606
申请日：2010-01-13
CPC分类号： F02M47/027 , F02M61/12 , F02M61/167 , F02M63/0225
摘要： The invention relates to a fuel injector, in particular a common rail injector, for injecting fuel into a combustion chamber of an internal combustion engine. The fuel injector has a multi-part injection valve element, which is adjustable between a closing position and an opening position and includes a first part and at least one second part that is adjustable relative to the first part. The first and second parts are coupled to one another via a hydraulic coupler volume. According to the invention, it is provided that the first part is guided in the second part, or the second part is guided in the first part, and that the coupler volume communicates with an injector volume via at least one throttle arrangement. The throttle arrangement is embodied such that the volumetric through flow increases only disproportionately little with an increasing pressure difference between the coupler volume and the injector volume.
摘要翻译： 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器，特别是共轨喷射器。 燃料喷射器具有多部分喷射阀元件，其可在关闭位置和打开位置之间调节，并且包括可相对于第一部件调节的第一部分和至少一个第二部分。 第一和第二部分通过液压耦合器体积相互耦合。 根据本发明，提供了第一部分在第二部分中被引导，或者第二部分在第一部分中被引导，并且联接器体积经由至少一个节流装置与喷射器体积连通。 节流装置被实施为使得体积通过流量随着耦合器体积和注射器体积之间的增加的压力差而仅增加很小。
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公开(公告)号：US20120205470A1
公开(公告)日：2012-08-16
申请号：US13503686
申请日：2010-10-01
CPC分类号： F02M47/027 , F02M61/168 , F02M2200/8084 , F02M2200/8092 , Y10T29/49412 , Y10T29/49425
摘要： The invention relates to a method for producing a fuel injection valve (10; 10a; 60; 60a), in which a valve needle (40; 40a; 62; 62a) which closes at least one fuel outlet opening (49) is inserted into an injector housing (11), wherein that end of the valve needle (40; 40a; 62; 62a) which lies opposite the at least one fuel outlet opening (49) is guided in a valve element (32) which has a pressurized control chamber (37) which is filled with fuel, wherein the control chamber (37) can be closed on the side which faces away from the valve needle (40; 40a; 62; 62a) by a closing element (23) which forms a passage during opening and is connected at least indirectly to a fuel return line (5) which is under low pressure, wherein fuel volume which is present in the control chamber (37) flows away through the passage after opening of the control chamber (37) by means of the closing element (23), wherein the valve needle (40; 40a; 62; 62a) moves in the direction of the closing element (23), wherein the at least one fuel outlet opening (49) is opened, and wherein a delay time (t) occurs between the opening of the control chamber (37) and the opening of the at least one fuel outlet opening (49) on account of the magnitude of the volume of the control chamber (37) and on account of the rigidity of the valve needle (40; 40a; 62; 62a), which rigidity is caused by the modulus of elasticity, the diameter (D) and the length (L) of the valve needle (40; 40a; 62; 62a). There is provision according to the invention for at least the volume of the control chamber (37) to be adapted in order to achieve identical delay times (t) in fuel injection valves (10; 10a; 60; 60a) having injector housings (11) of different length and valve needles (40; 40a; 62; 62a) of different length, in such a way that the volume of the control chamber (37) is reduced in order to shorten the delay time (t) and the volume of the control chamber (37) is increased in order to lengthen the delay time (t).
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公开(公告)号：US20110139906A1
公开(公告)日：2011-06-16
申请号：US13055599
申请日：2009-05-27
IPC分类号： F02M61/04
CPC分类号： F02M47/027 , F02M57/025 , F02M61/12 , F02M63/0005 , F02M63/0015 , F02M63/008 , F02M2200/304 , F02M2200/703 , F02M2200/704 , F02M2200/705 , F02M2547/003
摘要： The invention relates to a fuel injector and, in particular, to a common-rail injector for injecting fuel into a combustion chamber of an internal combustion engine with a multi-part injection valve element, which can be adjusted between an open position and a closed position. A first part and a second part of the injection valve element are coupled to one another via a hydraulic coupler, which is bounded radially by a first guide for the first part and by a second guide for the second part. According to the invention, at least some sections of the first and the second guide are surrounded at their outer radii by fuel under high pressure, and the pressure realized in the hydraulic coupler is lower than the pressure radially outside the guides.
摘要翻译： 本发明涉及一种燃料喷射器，特别涉及一种共轨喷射器，用于将燃料喷射到具有多部分喷射阀元件的内燃机的燃烧室中，所述多部分喷射阀元件可以在打开位置和关闭状态之间调节 位置。 喷射阀元件的第一部分和第二部分经由液压耦合器彼此联接，液压耦合器由第一部分的第一引导件和第二部分的第二引导件径向限制。 根据本发明，第一和第二引导件的至少一些部分在其外半径处被高压燃料包围，并且液压联轴器中实现的压力低于引导件的径向外侧的压力。
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7.发明申请THROTTLE ON A VALVE NEEDLE OF A FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES 审中-公开用于内燃机的燃油喷射阀的阀针上的节流阀公开(公告)号：US20100193611A1
公开(公告)日：2010-08-05
申请号：US12668936
申请日：2008-06-13
IPC分类号： F02M61/10
CPC分类号： F02M61/16 , F02M47/027 , F02M61/10 , F02M61/12 , F02M61/205 , F02M63/008 , F02M2200/28 , F02M2547/003
摘要： The invention relates to a fuel injection valve for internal combustion engines, having a valve body, in which a pressure chamber is configured. A valve needle is disposed in the pressure chamber in a longitudinally displaceable manner. The valve body has a valve seat which interacts with a sealing surface configured on the valve needle. The valve seat delimits the pressure chamber, thus enabling or interrupting a fuel flow to at least one injection opening by the interaction of the valve needle with the valve seat. To this end, the fuel flow to the injection openings occurs between the valve needle and the wall of the pressure chamber, through a sharp-edged gap throttle which is formed between the valve needle and the wall of the pressure chamber.
摘要翻译： 本发明涉及一种用于内燃机的燃料喷射阀，其具有构造有压力室的阀体。 阀针以可纵向移位的方式设置在压力室中。 阀体具有与配置在阀针上的密封面相互作用的阀座。 阀座限定压力室，从而通过阀针与阀座的相互作用使燃料流动到至少一个喷射口。 为此，通过形成在阀针和压力室的壁之间的尖锐的间隙节流阀，在阀针和压力室的壁之间发生到注射开口的燃料流。
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8.发明申请LINE CIRCUIT AND METHOD FOR OPERATING A LINE CIRCUIT FOR WASTE-HEAT UTILIZATION OF AN INTERNAL COMBUSTION ENGINE 审中-公开线路电路和操作线路电路的方法，用于内燃机的废热利用公开(公告)号：US20140075934A1
公开(公告)日：2014-03-20
申请号：US14116801
申请日：2012-04-27
申请人： Gregory Rewers , Nadja Eisenmenger , Achim Brenk , Dieter Seher , Hans-Christoph Magel , Andreas Wengert
发明人： Gregory Rewers , Nadja Eisenmenger , Achim Brenk , Dieter Seher , Hans-Christoph Magel , Andreas Wengert
IPC分类号： F02G5/02
CPC分类号： F02G5/02 , F01K23/065 , Y02T10/166
摘要： A line circuit (4) and a method for operating a line circuit (4) for waste-heat utilization of an internal combustion engine (2) are proposed. A working medium circulates in the line circuit (4). The line circuit (4) contains a feed pump (6), at least one heat exchanger (8), an expansion machine (10), a feed-water container (14), in order to store the liquid working medium, and a condenser (12), wherein the feed-water container (14) is connected to the feed pump (6) by way of a line (29). The feed pump (6) has a return-flow line (30), via which liquid working medium can be discharged from the feed pump (6).
摘要翻译： 提出一种线路电路（4）和用于操作内燃机（2）的废热利用的线路电路（4）的方法。 工作介质在线路电路（4）中循环。 线路电路（4）包含供给泵（6），至少一个热交换器（8），膨胀机（10），给水容器（14））以便储存液体工作介质，以及 冷凝器（12），其中给水容器（14）通过管线（29）连接到进料泵（6）。 进料泵（6）具有回流管线（30），液体加工介质可通过该回流管线从进料泵（6）排出。
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9.发明授权公开(公告)号：US08245696B2
公开(公告)日：2012-08-21
申请号：US12596589
申请日：2008-04-07
CPC分类号： F02M61/16 , F02M55/008 , F02M61/162 , F02M2200/03
摘要： The invention relates to an area of intersection between a high-pressure chamber and a high-pressure duct. To increase the strength in the area of intersection, it is possible to round the area of intersection. The area of intersection includes at least one planar area or an area that is curved markedly less than the remaining area of intersection. The planar area may also be embodied as only nearly planar. The high-pressure chamber and the high-pressure duct are also called functional chambers. By means of the planar or nearly planar area, an intersection geometry is created, in which tensile stresses of the functional chambers that occur upon subjection to pressure are not superimposed directly and add up as they do in conventional intersection geometries. By means of the planar area in the area of intersection, it is attained that in the intersection geometry of the invention, under pressure, local pressure stresses or markedly reduced tensile stresses occur in an inner wall of the high-pressure chamber and are then superimposed with the tensile stresses in an inner wall of the high-pressure duct. Since with the intersection geometry of the invention, a tensile stress has only a reduced tensile stress or in the best case a pressure stress superimposed on it, the total is less and hence the maximum stress that occurs is reduced markedly.
摘要翻译： 本发明涉及高压室和高压管道之间的交叉区域。 为了增加交叉点的强度，可以绕交叉点的区域。 交叉区域包括至少一个平面区域或显着小于其余交叉区域的弯曲区域。 平面区域也可以被实现为仅几乎平面的。 高压室和高压管也被称为功能室。 通过平面或近平面区域，产生交叉几何，其中在压力下发生的功能室的拉伸应力不直接叠加并与常规交叉几何形状相加。 通过交叉区域中的平面区域，可以确认在本发明的交叉几何中，在压力下，局部压力应力或显着降低的拉应力发生在高压室的内壁中，然后叠加 在高压管道的内壁处具有拉伸应力。 由于采用本发明的交叉几何形状，拉伸应力仅具有减小的拉伸应力，或者在最好的情况下叠加在其上的压力应力，总和较小，因此发生的最大应力显着降低。
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公开(公告)号：US20100019068A1
公开(公告)日：2010-01-28
申请号：US12523556
申请日：2008-01-03
IPC分类号： B05B1/30
CPC分类号： F02M57/025 , F02M47/027 , F02M55/002 , F02M61/14
摘要： Proposed is a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine. The fuel injector has a housing in which are arranged an injection valve element with a nozzle needle, a pressure boosting device, and a first control valve, and a second control valve. The first control valve controls a control space of the nozzle needle and the second control valve controls a differential pressure space of the pressure boosting device. A first return flow connection is provided for discharging the control quantity of the control space of the nozzle needle, and a second return flow connection is provided for discharging the control quantity of the pressure boosting device. The two return flow connections are arranged on different housing parts of the housing.
摘要翻译： 提出了一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射器。 燃料喷射器具有壳体，其中布置有具有喷嘴针，增压装置和第一控制阀以及第二控制阀的喷射阀元件。 第一控制阀控制喷嘴针的控制空间，第二控制阀控制升压装置的压差空间。 提供了用于排出喷嘴针的控制空间的控制量的第一回流连接，并且提供第二回流连接用于排放增压装置的控制量。 两个回流连接被布置在壳体的不同壳体部分上。
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