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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
Applicant: Gregory William Hefler , Adam Leonard Stecklein , Daniel Richard Ibrahim
CPC classification number: F02M63/0036 , F02M47/027 , F02M61/166 , F02M63/0022 , F02M2200/9007
Abstract: 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.
Abstract translation: 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：US20120291753A1
公开(公告)日：2012-11-22
申请号：US13111477
申请日：2011-05-19
Applicant: Gregory William Hefler , Adam Leonard Stecklein , Daniel Richard Ibrahim
CPC classification number: F02M63/0036 , F02M47/027 , F02M61/166 , F02M63/0022 , F02M2200/9007
Abstract: 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.
Abstract translation: 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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