公开(公告)号：US09995187B2

公开(公告)日：2018-06-12

申请号：US15006195

申请日：2016-01-26

申请人： Honda Motor Co., Ltd.

发明人： Scott Davis

IPC分类号： F01L3/20 ,  F01L3/00 ,  F01L3/12 ,  F02M63/00 ,  F16K1/36

CPC分类号： F01L3/20 ,  F01L3/00 ,  F01L3/12 ,  F02M63/0078 ,  F02M63/008 ,  F16K1/36

摘要： Some embodiments are directed to a valve assembly for use with a combustion engine. The valve assembly can include a valve stem having a plunger end, and a valve head having a stem portion disposed along a central axis and connected to the plunger end of the valve stem. The valve head can have a hollow interior portion defining interior floor and ceiling surfaces, and include ribs that extend between the interior floor and ceiling surfaces. The ribs can also extend radially around the central axis of the valve head from the stem portion to an outer circumference of the hollow interior portion. Additionally, the ribs can be configured such that a majority of an upper surface of each rib contacts the ceiling surface.

公开(公告)号：US20170022952A1

公开(公告)日：2017-01-26

申请号：US15047142

申请日：2016-02-18

申请人： CUMMINS INC.

发明人： Romaine O. Edwards ,  Edward B. Manring ,  Brian M. Watson

IPC分类号： F02M59/36 ,  F02M63/00

CPC分类号： F02M59/366 ,  F02M59/368 ,  F02M59/466 ,  F02M63/0017 ,  F02M63/0036 ,  F02M63/004 ,  F02M63/0056 ,  F02M63/0073 ,  F02M63/0078 ,  F02M63/008 ,  Y10T137/0363 ,  Y10T137/8671

摘要： A valve (100) comprises a barrel (104) having a central bore (110), an inlet (112), and an outlet (114, 116), and a spool (120) disposed for motion within the central bore, including a ball tip (128), a metering edge (130), and a bore (132). The spool is moveable between a closed position, wherein the ball tip engages a seat (142) to prevent fluid flow through the inlet and the metering edge is disposed in a lower chamber (148) of the central bore to prevent the fluid flow through the outlet, and an opened position, wherein the tip is spaced apart from the seat to permit fluid flow through the inlet and the spool bore into an upper chamber (154) of the central bore to equalize pressure on the spool, and the metering edge is disposed in a flow path of the outlet to permit fluid flow through the outlet.

摘要翻译： 阀（100）包括具有中心孔（110），入口（112）和出口（114,116）的筒体（104）和设置成在中心孔内运动的线轴（120），包括 球头（128），计量边缘（130）和孔（132）。 阀芯可在闭合位置之间移动，其中球头接合座（142）以防止流体流过入口，并且计量边缘设置在中心孔的下腔室（148）中，以防止流体流过 出口和打开位置，其中所述尖端与所述座部间隔开​​，以允许流体通过所述入口和所述卷轴孔流入所述中心孔的上室（154）以均衡所述卷轴上的压力，并且所述计量边缘为 设置在出口的流动路径中，以允许流体流过出口。

公开(公告)号：US09140223B2

公开(公告)日：2015-09-22

申请号：US12624200

申请日：2009-11-23

申请人： Mario Ricco ,  Sergio Stucchi ,  Raffaele Ricco ,  Onofrio De Michele ,  Chiara Altamura ,  Domenico Lepore

发明人： Mario Ricco ,  Sergio Stucchi ,  Raffaele Ricco ,  Onofrio De Michele ,  Chiara Altamura ,  Domenico Lepore

IPC分类号： F02M45/08 ,  F02M47/02 ,  F02M63/00 ,  F02D41/20 ,  F02D41/40

CPC分类号： F02M47/027 ,  F02D41/20 ,  F02D41/403 ,  F02M45/08 ,  F02M63/0024 ,  F02M63/004 ,  F02M63/007 ,  F02M63/0075 ,  F02M63/008 ,  F02M2200/306 ,  F02M2547/003

摘要： The fuel injection system comprises a fuel injector controlled by commands of a control unit. The fuel injector comprises a metering servo valve having a control chamber provided with an outlet passage that is opened/closed by an open/close element that is axially movable. The open/close element is carried by an axial guide element that is separate from an armature of an electromagnet. The open/close element is held in the closing position by a spring acting through an intermediate body. In some instances, the strokes of the open/close element and of the armature are chosen so as to eliminate, upon closing of the servo valve, the rebounds of the open/close element subsequent to the first rebound. The control unit controls a fuel injection comprising a pilot fuel injection and a main fuel injection, via two distinct electrical commands, which are spaced apart by a dwell time such as to occur in an area of reduced variation of the amount of injected fuel. Therefore, the stability of operation of the fuel injection system increases as the dwell time varies.

摘要翻译： 燃料喷射系统包括由控制单元的命令控制的燃料喷射器。 燃料喷射器包括计量伺服阀，其具有控制室，该控制室设置有通过可轴向移动的打开/关闭元件打开/关闭的出口通道。 开/关元件由与电磁体的电枢分离的轴向引导元件承载。 打开/关闭元件通过作用在中间体上的弹簧保持在关闭位置。 在某些情况下，选择打开/关闭元件和电枢的行程，以便在关闭伺服阀时消除在第一次回弹之后的打开/关闭元件的反弹。 控制单元经由两个不同的电气指令来控制包括先导燃料喷射和主燃料喷射的燃料喷射，其间隔开停留时间，以便发生在喷射燃料量的变化量减小的区域中。 因此，燃料喷射系统的运行稳定性随着停留时间的变化而增加。

公开(公告)号：US08459575B2

公开(公告)日：2013-06-11

申请号：US12491938

申请日：2009-06-25

申请人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele

发明人： Mario Ricco ,  Raffaele Ricco ,  Sergio Stucchi ,  Onofrio De Michele

IPC分类号： F02M51/06 ,  F02M51/00 ,  B05B1/30 ,  F16K31/02

CPC分类号： F02M63/004 ,  F02M47/027 ,  F02M63/0042 ,  F02M63/007 ,  F02M63/008 ,  F02M2200/16 ,  F02M2200/27 ,  F02M2200/28 ,  F02M2547/003

摘要： A fuel injector has an injector body and a control rod, which is movable in the injector body along an axis to control the opening/closing of a nozzle that injects fuel into a cylinder of the engine; the injector body houses a metering servovalve having a control chamber, which is axially delimited by the control rod and communicates with an inlet and with a discharge channel; the metering servovalve is provided with a shutter, which slides axially on an axial guide, from which the discharge channel exits, to open and close the discharge channel and, in consequence, vary the pressure in the control chamber; the discharge channel has at least two restrictions having calibrated passage sections and arranged in series with each other to divide the pressure drop along the discharge channel.

摘要翻译： 燃料喷射器具有喷射器主体和控制杆，其可以沿着轴线在喷射器主体中移动，以控制将燃料喷射到发动机气缸中的喷嘴的打开/关闭; 注射器主体容纳具有控制室的计量伺服阀，该控制室由控制杆轴向限定并与入口和排放通道连通; 计量伺服阀设有挡板，其在轴向引导件上轴向滑动，排放通道从该导向器滑出，以打开和关闭排放通道，并因此改变控制室中的压力; 排出通道具有至少两个具有校准通道部分的限制并且彼此串联布置以沿着排出通道分开压降。

公开(公告)号：US20120216772A1

公开(公告)日：2012-08-30

申请号：US13503682

申请日：2010-10-01

申请人： Nadja Eisenmenger

发明人： Nadja Eisenmenger

IPC分类号： F02M61/04

CPC分类号： F02M63/0077 ,  F02M47/027 ,  F02M63/0017 ,  F02M63/0033 ,  F02M63/0071 ,  F02M63/008

摘要： The invention relates to a fuel injector for injecting fuel into a combustion chamber of an internal combustion engine, in particular a common-rail injector, comprising a control valve (19) for hydraulically connecting a control chamber (13) which is operationally connected to a one or multi-part injection valve element (9) to a low pressure region (8), wherein the control valve (19) comprises a valve element (18) which is axially adjustable by an actuator and interacts with a valve seat (20) in the closed position thereof, to which an axial guide (24) for guiding the valve element (18) in the axial adjustment movement thereof is allocated. According to the invention, a center point (M) of an imaginary circle (26) is arranged within the axial guide length of the guide (24) and the circle contacts the valve seat (20) or the sealing region (31) of the valve element (18) interacting with the valve seat (20) at points, in a longitudinal section plane of the fuel injector (1) accommodating a longitudinal center axis (L) of the valve element (18) of the control valve (19), at two points (P1, P2) spaced apart from one another and the center point (M) of the imaginary circle (26) is spaced apart less than 40%, advantageously less than 30%, preferably less than 20%, particularly preferably less than 20% of the axial guide length of the guide (24) from an axial center (25) of the guide (24).

摘要翻译： 本发明涉及一种用于将燃料喷射到内燃机，特别是共轨喷射器的燃烧室中的燃料喷射器，该燃料喷射器包括用于液压连接控制室（13）的控制阀（19），控制室（13）可操作地连接到 一个或多部分喷射阀元件（9）到低压区域（8），其中所述控制阀（19）包括阀元件（18），所述阀元件可由致动器轴向调节并与阀座（20）相互作用， 在其关闭位置中，分配用于在其轴向调节运动中引导阀元件（18）的轴向引导件（24）。 根据本发明，假想圆（26）的中心点（M）布置在引导件（24）的轴向引导长度内，并且圆与阀座（20）或密封区域（31）接触 阀元件（18）在燃料喷射器（1）的沿着控制阀（19）的阀元件（18）的纵向中心轴线（L）的纵向截面的点处与阀座（20）相互作用， 在彼此间隔开的两个点（P1，P2）处，并且假想圆（26）的中心点（M）间隔开小于40％，有利地小于30％，优选小于20％，特别优选地 小于引导件（24）的轴向中心（25）的引导件（24）的轴向引导长度的20％。

公开(公告)号：US20120031376A1

公开(公告)日：2012-02-09

申请号：US13263957

申请日：2010-03-11

申请人： Hans-Christoph Magel

发明人： Hans-Christoph Magel

IPC分类号： F02M69/04

CPC分类号： F02M63/0026 ,  F02M47/027 ,  F02M57/005 ,  F02M63/008 ,  F02M2200/24

摘要： The invention relates to a fuel injector (1) having a high pressure region (32) which contains fuel that is under high pressure during operation, and a low pressure region (38) in which a lower pressure is present during operation than in the high pressure region (32). A sensor (12) is located in the low pressure region (38) and a transmission means (9) is arranged such that a force which is equal to the pressure of the fuel in the high pressure region (32) is exerted on the sensor (12) at least some of the time.

摘要翻译： 本发明涉及一种具有高压区域（32）的燃料喷射器（1），该高压区域（32）包含在运行期间处于高压下的燃料，以及低压区域（38），其中在运行期间存在比在高压区域 压力区域（32）。 传感器（12）位于低压区域（38）中，并且传动装置（9）被布置成使得等于高压区域（32）中的燃料的压力的力被施加在传感器 （12）至少有一些时间。

公开(公告)号：US07954787B2

公开(公告)日：2011-06-07

申请号：US12021531

申请日：2008-01-29

申请人： Mario Ricco ,  Raffaele Ricco ,  Antonio Gravina ,  Marcello Gargano ,  Sergio Stucchi ,  Onofrio De Michele

发明人： Mario Ricco ,  Raffaele Ricco ,  Antonio Gravina ,  Marcello Gargano ,  Sergio Stucchi ,  Onofrio De Michele

IPC分类号： F16K31/02

CPC分类号： F02M47/027 ,  F02M63/004 ,  F02M63/007 ,  F02M63/008 ,  F02M2200/28 ,  F02M2547/003

摘要： The injector comprises a balanced metering servovalve to control a rod for the opening/closing of a nozzle. La servovalve has a valve body with a control chamber radially delimited by a tubular portion and fitted with an outlet passage that is opened/closed by an axially movable shutter. The servovalve is also integral with an axial stem, provided with a lateral surface, through which the outlet channel exits. The shutter is coupled to the stem in an axially sliding manner and, when it closes the outlet passage, it is subjected to substantially null axial fuel pressure. The outlet passage has a calibrated segment distanced from the shutter and close to a bottom wall of the control chamber. The calibrated segment is carried by an element fixed to the valve body in correspondence to an axial segment of the outlet passage.

摘要翻译： 喷射器包括平衡计量伺服阀，用于控制用于打开/关闭喷嘴的杆。 La伺服阀具有阀体，其具有由管状部分径向限定的控制室，并且装配有由可轴向移动的快门打开/关闭的出口通道。 伺服阀还与轴向杆成一体，轴向杆具有侧面，出口通道通过该侧面离开。 快门以轴向滑动方式联接到杆上，并且当其关闭出口通道时，其受到基本上无效的轴向燃料压力。 出口通道具有远离闸门并靠近控制室的底壁的校准段。 校准段由与出口通道的轴向段对应的固定到阀体的元件承载。

公开(公告)号：US20100294241A1

公开(公告)日：2010-11-25

申请号：US12864114

申请日：2008-12-30

申请人： Nadja Eisenmenger ,  Hans-Christoph Magel

发明人： Nadja Eisenmenger ,  Hans-Christoph Magel

IPC分类号： F02M69/46

CPC分类号： F02M47/027 ,  F02M63/007 ,  F02M63/0073 ,  F02M63/0077 ,  F02M63/008 ,  F02M2547/003

摘要： The invention relates to an injector, in particular, a common-rail injector for injection of fuel into a combustion chamber of an internal combustion engine. An injection valve element, adjustable between a closed position and an open position, is controllable by means of a control valve. The control valve has a control valve element, adjustable between a closed position and an open position by means of an actuator, which in the closed position is an at least almost pressure-equalized and has a sealing line which cooperates in a sealing manner with a control valve seat. The sealing line of the control valve element is lifted off the control valve seat in the open position and hence opens fuel flow from a high pressure region to a low pressure region of the injector. According to the invention, the control valve element has a support region extending over the sealing line in a radial direction to the high pressure region.

摘要翻译： 本发明涉及一种喷射器，特别涉及用于将燃料喷射到内燃机的燃烧室中的共轨喷射器。 在关闭位置和打开位置之间可调节的喷射阀元件可通过控制阀来控制。 控制阀具有控制阀元件，该控制阀元件通过致动器在关闭位置和打开位置之间可调节，致动器在关闭位置至少几乎被压力均衡并具有与密封方式配合的密封线 控制阀座。 控制阀元件的密封线在打开位置被提升到控制阀座上，从而打开从喷射器的高压区域到低压区域的燃料流。 根据本发明，控制阀元件具有在密封线上沿着高压区域的径向方向延伸的支撑区域。

公开(公告)号：US20100193611A1

公开(公告)日：2010-08-05

申请号：US12668936

申请日：2008-06-13

申请人： Matthias Burger ,  Hans-Christoph Magel

发明人： Matthias Burger ,  Hans-Christoph Magel

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。

公开(公告)号：US20090308353A1

公开(公告)日：2009-12-17

申请号：US12303008

申请日：2008-01-30

申请人： Hans-Christoph Magel

发明人： Hans-Christoph Magel

IPC分类号： F02M51/00

CPC分类号： F02M47/027 ,  F02M63/007 ,  F02M63/008

摘要： The invention relates to a fuel injector (1) for injecting fuel into a combustion chamber of an internal combustion engine, said injector comprising a nozzle needle (4) which moves back and forth in an injector body (2) and/or in a nozzle body (3) in order to release and/or to close at least one injection opening (5) in the nozzle body (3). The movement of the nozzle needle (4) can be controlled by a control valve which co-operates with a control chamber (6). The control valve comprises a valve needle (7) which is guided back and forth and can be moved in relation to a sealing seat (8) in order to ventilate the control chamber (6) in a fuel return (8) when the valve needle (7) is lifted from the sealing seat (8). The valve needle (7) has a differential surface which enables the needle to be subjected to a fuel pressure and held in the direction of the sealing seat (8).

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（1），所述喷射器包括在喷射器主体（2）和/或喷嘴中前后移动的喷嘴针（4） 主体（3）以便释放和/或关闭喷嘴体（3）中的至少一个喷射开口（5）。 喷嘴针（4）的移动可以通过与控制室（6）配合的控制阀来控制。 控制阀包括一个前后引导的阀针（7），可相对于一个密封座（8）移动，以便当阀针（8）处于燃料回路（8）时使控制室（6）通风 （7）从密封座（8）提起。 阀针（7）具有使针能够受到燃料压力并保持在密封座（8）的方向上的差动面。