公开(公告)号：US08602319B2

公开(公告)日：2013-12-10

申请号：US12899931

申请日：2010-10-07

申请人： Jeffrey De Payva

发明人： Jeffrey De Payva

IPC分类号： F02D1/06 ,  F02M59/00 ,  F02M39/00 ,  F02M51/00 ,  B05B1/30

CPC分类号： F02M61/12 ,  F02D41/20 ,  F02D2041/2031 ,  F02M45/12 ,  F02M47/027 ,  F02M2547/00

摘要： A fuel injector includes an injector body with a tip component that defines at least one nozzle outlet. A needle valve member is positioned in the injector body and includes a frustoconical segment positioned in a frustoconical bore to separate a needle control chamber from a nozzle chamber. The needle valve member includes an opening hydraulic surface exposed to fluid pressure in the nozzle chamber, and a closing hydraulic surface exposed to fluid pressure in the needle control chamber. The frustoconical bore and the frustoconical segment have a narrowing taper in the direction of an injector tip. The frustoconical features tend to slow the initial opening of the nozzle outlets, and hasten their closure relative to a counterpart injector with cylindrical needle guide features.

摘要翻译： 燃料喷射器包括具有限定至少一个喷嘴出口的尖端部件的喷射器主体。 针阀构件定位在注射器主体中并且包括定位在截头圆锥孔中的截头圆锥段，以将针控制室与喷嘴室分离。 针阀构件包括暴露于喷嘴室中的流体压力的开口液压表面和暴露于针控制室内的流体压力的关闭液压表面。 截头圆锥孔和截头圆锥段在喷射器尖端的方向上具有变窄的锥度。 截头圆锥形特征倾向于减慢喷嘴出口的初始打开，并且相对于具有圆柱形针引导特征的对应注射器加速它们的关闭。

公开(公告)号：US09169813B2

公开(公告)日：2015-10-27

申请号：US14055352

申请日：2013-10-16

申请人： DENSO CORPORATION

发明人： Naofumi Adachi

IPC分类号： F02M47/02 ,  F02M55/00

CPC分类号： F02M47/027 ,  F02M2547/00 ,  F02M2547/008

摘要： A movable plate is movably accommodated in a pressure control chamber. A fixed plate is arranged above the movable plate, so that the movable plate is brought into contact with the fixed plate. The fixed plate has a high pressure passage for supplying fuel into the pressure control chamber and a low pressure passage for discharging the fuel from the pressure control chamber. A high pressure port and a low pressure port are formed at a lower end surface of the fixed plate. A first contacting surface is formed at the lower end surface and a first groove is formed in the first contacting surface for holding a part of fuel in a plate-contacted condition.

摘要翻译： 可动板可移动地容纳在压力控制室中。 固定板设置在可动板上方，使可动板与固定板接触。 固定板具有用于向压力控制室供给燃料的高压通道和用于从压力控制室排出燃料的低压通道。 在固定板的下端面形成高压口和低压口。 第一接触表面形成在下端表面处，并且第一凹槽形成在第一接触表面中，用于将部分燃料保持在板接触状态。

公开(公告)号：US20120085835A1

公开(公告)日：2012-04-12

申请号：US12899931

申请日：2010-10-07

申请人： Jeffrey De Payva

发明人： Jeffrey De Payva

IPC分类号： F02M61/00

CPC分类号： F02M61/12 ,  F02D41/20 ,  F02D2041/2031 ,  F02M45/12 ,  F02M47/027 ,  F02M2547/00

摘要： A fuel injector includes an injector body with a tip component that defines at least one nozzle outlet. A needle valve member is positioned in the injector body and includes a frustoconical segment positioned in a frustoconical bore to separate a needle control chamber from a nozzle chamber. The needle valve member includes an opening hydraulic surface exposed to fluid pressure in the nozzle chamber, and a closing hydraulic surface exposed to fluid pressure in the needle control chamber. The frustoconical bore and the frustoconical segment have a narrowing taper in the direction of an injector tip. The frustoconical features tend to slow the initial opening of the nozzle outlets, and hasten their closure relative to a counterpart injector with cylindrical needle guide features.

摘要翻译： 燃料喷射器包括具有限定至少一个喷嘴出口的尖端部件的喷射器主体。 针阀构件定位在注射器主体中并且包括定位在截头圆锥孔中的截头圆锥段，以将针控制室与喷嘴室分离。 针阀构件包括暴露于喷嘴室中的流体压力的开口液压表面和暴露于针控制室内的流体压力的关闭液压表面。 截头圆锥孔和截头圆锥段在喷射器尖端的方向上具有变窄的锥度。 截头圆锥形特征倾向于减慢喷嘴出口的初始打开，并且相对于具有圆柱形针引导特征的对应注射器加速它们的关闭。

公开(公告)号：US20160245251A1

公开(公告)日：2016-08-25

申请号：US15019537

申请日：2016-02-09

申请人： HOERBIGER KOMPRESSORTECHNIK HOLDING GMBH

发明人： Martin Könczöl ,  Christoph Brandl

IPC分类号： F02M63/00 ,  F02M43/00 ,  G05D7/01

CPC分类号： F02M63/0012 ,  F02M21/0254 ,  F02M21/0272 ,  F02M43/00 ,  F02M63/0017 ,  F02M63/0033 ,  F02M63/0063 ,  F02M2200/16 ,  F02M2547/00 ,  F04B39/1053 ,  F04B53/1082 ,  Y02T10/32 ,  Y02T10/36

摘要： The invention relates to a gas metering valve (1) for a dual fuel engine (17), which has a displaceable closing body (6) which, in a position of resting against a valve seat (5), closes the gas metering valve (1) and, in a position of being lifted off from the valve seat (5), opens the gas metering valve (1). The gas metering valve (1) is actuatable in a gas operating mode, in which the gas metering valve (1) meters combustion gas via a gas channel (13) into an intake manifold (15) of the dual fuel engine (17), and in a liquid fuel operating mode, in which the gas metering valve (1) remains sealingly closed against the pressure prevalent in the intake manifold (15). The valve seat (5) is movably situated along a valve seat guide (4), the valve seat (5), owing to the combustion gas pressure in the gas channel (13), in the gas operating mode being pressed away from the closing body (6) against a stop (20) in the gas metering valve (1) and is kept in its operating position, and the valve seat (5) in the liquid fuel operating mode being sealingly pressed by the pressure from the intake manifold (15) against the closing body (6).

摘要翻译： 本发明涉及一种用于双燃料发动机（17）的气体计量阀（1），其具有可移位的关闭体（6），其在与阀座（5）相对的位置处关闭气体计量阀 在从阀座（5）取下的位置，打开气体计量阀（1）。 气体计量阀（1）可以在气体操作模式中致动，其中，气体计量阀（1）经由气体通道（13）将燃烧气体计量到双燃料发动机（17）的进气歧管（15）中， 并且在液体燃料操作模式中，其中气体计量阀（1）相对于在进气歧管（15）中流行的压力保持密封地关闭。 阀座（5）沿着阀座引导件（4）可移动地定位，阀座（5）由于气体通道（13）中的燃烧气体压力，在气体操作模式中被压向远离闭合 主体（6）抵靠在气体计量阀（1）中的止动件（20）并保持在其操作位置，并且处于液体燃料操作模式的阀座（5）被来自进气歧管的压力 15）抵靠封闭体（6）。

公开(公告)号：US20140131483A1

公开(公告)日：2014-05-15

申请号：US14055352

申请日：2013-10-16

申请人： DENSO CORPORATION

发明人： Naofumi ADACHI

IPC分类号： F02M61/16

CPC分类号： F02M47/027 ,  F02M2547/00 ,  F02M2547/008

摘要： A movable plate is movably accommodated in a pressure control chamber. A fixed plate is arranged above the movable plate, so that the movable plate is brought into contact with the fixed plate. The fixed plate has a high pressure passage for supplying fuel into the pressure control chamber and a low pressure passage for discharging the fuel from the pressure control chamber. A high pressure port and a low pressure port are formed at a lower end surface of the fixed plate. A first contacting surface is formed at the lower end surface and a first groove is formed in the first contacting surface for holding a part of fuel in a plate-contacted condition.

摘要翻译： 可动板可移动地容纳在压力控制室中。 固定板设置在可动板上方，使可动板与固定板接触。 固定板具有用于向压力控制室供给燃料的高压通道和用于从压力控制室排出燃料的低压通道。 在固定板的下端面形成高压口和低压口。 第一接触表面形成在下端表面处，并且第一凹槽形成在第一接触表面中，用于将部分燃料保持在板接触状态。