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1.发明申请Fuel Injector With Needle Control System That Includes F, A, Z and E Orifices 有权带有针头控制系统的燃油喷射器，包括F，A，Z和E孔公开(公告)号：US20130112767A1
公开(公告)日：2013-05-09
申请号：US13290509
申请日：2011-11-07
申请人： Sana Mahmood , Zhenyu Li , Michael Curtis Herr , Gregory William Hefler , Linda Angharad Williams
发明人： Sana Mahmood , Zhenyu Li , Michael Curtis Herr , Gregory William Hefler , Linda Angharad Williams
IPC分类号： F02M43/00
CPC分类号： F02M47/027 , F02M55/008 , F02M2200/28
摘要： A common rail fuel injector includes a needle valve member that moves to open and close nozzle outlets for a fuel injection event responsive to pressure in a needle control chamber. Between injection events, the needle control chamber is fluidly connected to the fuel inlet by a first pathway that includes a Z orifice, and fluidly connected to the fuel inlet by a second pathway that includes an F orifice, an intermediate chamber and an A orifice. During an injection event, the needle control chamber is fluidly connected to a drain outlet by a third pathway that includes the A orifice, the intermediate chamber an E orifice and a buffer chamber, which may assist in avoiding cavitation erosion in a sensitive area associated with a flat control valve seat. Different performance characteristics are achieved by adjusting the sizes of the respective of F, A, Z and E orifices.
摘要翻译： 共轨燃料喷射器包括针阀构件，该针阀构件响应于针控制室中的压力移动以打开和关闭用于燃料喷射事件的喷嘴出口。 在注射事件之间，针控制室通过包括Z孔的第一路径流体地连接到燃料入口，并且通过包括F孔，中间室和A孔的第二路径流体连接到燃料入口。 在注射事件期间，针控制室通过包括A孔，中间室，E孔和缓冲室的第三路径流体地连接到排水口，该孔可有助于避免在与 平面控制阀座。 通过调整F，A，Z和E各孔的大小来实现不同的性能特征。
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2.发明授权Fuel injector with needle control system that includes F, A, Z and E orifices 有权带有针控系统的燃油喷射器，包括F，A，Z和E孔公开(公告)号：US08690075B2
公开(公告)日：2014-04-08
申请号：US13290509
申请日：2011-11-07
申请人： Sana Mahmood , Zhenyu Li , Michael Curtis Herr , Gregory William Hefler , Linda Angharad Williams
发明人： Sana Mahmood , Zhenyu Li , Michael Curtis Herr , Gregory William Hefler , Linda Angharad Williams
CPC分类号： F02M47/027 , F02M55/008 , F02M2200/28
摘要： A common rail fuel injector includes a needle valve member that moves to open and close nozzle outlets for a fuel injection event responsive to pressure in a needle control chamber. Between injection events, the needle control chamber is fluidly connected to the fuel inlet by a first pathway that includes a Z orifice, and fluidly connected to the fuel inlet by a second pathway that includes an F orifice, an intermediate chamber and an A orifice. During an injection event, the needle control chamber is fluidly connected to a drain outlet by a third pathway that includes the A orifice, the intermediate chamber an E orifice and a buffer chamber, which may assist in avoiding cavitation erosion in a sensitive area associated with a flat control valve seat. Different performance characteristics are achieved by adjusting the sizes of the respective of F, A, Z and E orifices.
摘要翻译： 共轨燃料喷射器包括针阀构件，该针阀构件响应于针控制室中的压力移动以打开和关闭用于燃料喷射事件的喷嘴出口。 在注射事件之间，针控制室通过包括Z孔的第一路径流体地连接到燃料入口，并且通过包括F孔，中间室和A孔的第二路径流体地连接到燃料入口。 在注射事件期间，针控制室通过包括A孔，中间室，E孔和缓冲室的第三路径流体地连接到排水口，该孔可有助于避免在与 平面控制阀座。 通过调整F，A，Z和E各孔的大小来实现不同的性能特征。
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公开(公告)号：US08689772B2
公开(公告)日：2014-04-08
申请号：US13111477
申请日：2011-05-19
CPC分类号： F02M63/0036 , F02M47/027 , F02M61/166 , F02M63/0022 , F02M2200/9007
摘要： A common rail fuel injector includes a fuel inlet, a set of nozzle outlets, a drain outlet, a nozzle chamber and a needle control chamber. A needle control valve includes a ceramic control valve member movable between a closed position in contact with a flat valve seat to block the needle control chamber from the drain outlet, and an open position at which the needle control chamber is fluidly connected to the drain outlet. A solenoid actuator is mounted in the injector body and includes an armature movable between an overtravel position and an energized position, but the armature has a stable un-energized position between the overtravel position and the energized position. A needle valve member is positioned in the injector body and 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. Armature overtravel is facilitated by a telescoping armature pin that includes a stem affixed to the armature and telescopically received in a pusher in contact with the ceramic control valve member.
摘要翻译： 共轨燃料喷射器包括燃料入口，一组喷嘴出口，排水出口，喷嘴室和针控制室。 针控制阀包括陶瓷控制阀构件，陶瓷控制阀构件可在与平阀座接触的关闭位置之间移动，以将针控制腔从排泄口堵塞，以及打开位置，在该打开位置，针控制室流体地连接到排水出口 。 螺线管致动器安装在喷射器主体中并且包括可在超行程位置和通电位置之间移动的衔铁，但电枢在超行程位置和通电位置之间具有稳定的未通电位置。 针阀构件定位在喷射器主体中，并且包括暴露于喷嘴室中的流体压力的开口液压表面以及在针控制室中暴露于流体压力的关闭液压表面。 电枢超行程通过伸缩电枢销促进，该电枢销包括固定到电枢的杆，并可伸缩地容纳在与陶瓷控制阀构件接触的推动器中。
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公开(公告)号：US20090084360A1
公开(公告)日：2009-04-02
申请号：US11865523
申请日：2007-10-01
IPC分类号： F02M37/04
CPC分类号： F02M59/366 , F01L2003/25 , F02M63/0015 , F02M63/0031 , F02M2200/07 , F16K31/0665 , F16K31/0675 , F16K31/0693 , Y10T137/4245
摘要： A spacer for use with, and to prevent or reduce the occurrence of stiction in, a fluid device such as a pump. The spacer has a generally ring-shaped body, which has first and second facing surfaces separated by a thickness. The spacer is positioned between a movable member of the pump and a stationary member of the pump such that the first facing surface of the spacer is contactable with the movable member and the second facing surface is contactable with the stationary member. The spacer has at least a fluid receiving groove formed in at least one of the first and second facing surfaces.
摘要翻译： 与流体装置（例如泵）一起使用并用于防止或减少静音的发生的间隔件。 间隔件具有大致环形的主体，其具有由厚度分开的第一和第二相对表面。 间隔件定位在泵的可移动部件和泵的静止部件之间，使得间隔件的第一相对表面可与可动部件接触，并且第二相对表面可与固定部件接触。 间隔件至少形成在第一和第二相对表面中的至少一个中的流体接收槽。
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公开(公告)号：US20120291753A1
公开(公告)日：2012-11-22
申请号：US13111477
申请日：2011-05-19
CPC分类号： F02M63/0036 , F02M47/027 , F02M61/166 , F02M63/0022 , F02M2200/9007
摘要： A common rail fuel injector includes a fuel inlet, a set of nozzle outlets, a drain outlet, a nozzle chamber and a needle control chamber. A needle control valve includes a ceramic control valve member movable between a closed position in contact with a flat valve seat to block the needle control chamber from the drain outlet, and an open position at which the needle control chamber is fluidly connected to the drain outlet. A solenoid actuator is mounted in the injector body and includes an armature movable between an overtravel position and an energized position, but the armature has a stable un-energized position between the overtravel position and the energized position. A needle valve member is positioned in the injector body and 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. Armature overtravel is facilitated by a telescoping armature pin that includes a stem affixed to the armature and telescopically received in a pusher in contact with the ceramic control valve member.
摘要翻译： 共轨燃料喷射器包括燃料入口，一组喷嘴出口，排水出口，喷嘴室和针控制室。 针控制阀包括陶瓷控制阀构件，陶瓷控制阀构件可在与平阀座接触的关闭位置之间移动，以将针控制腔从排泄口堵塞，以及打开位置，在该打开位置，针控制室流体地连接到排水出口 。 螺线管致动器安装在喷射器主体中并且包括可在超行程位置和通电位置之间移动的衔铁，但电枢在超行程位置和通电位置之间具有稳定的未通电位置。 针阀构件定位在喷射器主体中，并且包括暴露于喷嘴室中的流体压力的开口液压表面以及在针控制室中暴露于流体压力的关闭液压表面。 电枢超行程通过伸缩电枢销促进，该电枢销包括固定到电枢的杆，并可伸缩地容纳在与陶瓷控制阀构件接触的推动器中。
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公开(公告)号：US07509948B1
公开(公告)日：2009-03-31
申请号：US11865523
申请日：2007-10-01
CPC分类号： F02M59/366 , F01L2003/25 , F02M63/0015 , F02M63/0031 , F02M2200/07 , F16K31/0665 , F16K31/0675 , F16K31/0693 , Y10T137/4245
摘要： A spacer for use with, and to prevent or reduce the occurrence of stiction in, a fluid device such as a pump. The spacer has a generally ring-shaped body, which has first and second facing surfaces separated by a thickness. The spacer is positioned between a movable member of the pump and a stationary member of the pump such that the first facing surface of the spacer is contactable with the movable member and the second facing surface is contactable with the stationary member. The spacer has at least a fluid receiving groove formed in at least one of the first and second facing surfaces.
摘要翻译： 与流体装置（例如泵）一起使用并用于防止或减少静音的发生的间隔件。 间隔件具有大致环形的主体，其具有由厚度分开的第一和第二相对表面。 间隔件定位在泵的可移动部件和泵的静止部件之间，使得间隔件的第一相对表面可与可动部件接触，并且第二相对表面可与固定部件接触。 间隔件至少形成在第一和第二相对表面中的至少一个中的流体接收槽。
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