公开(公告)号：US06279603B1

公开(公告)日：2001-08-28

申请号：US09164304

申请日：1998-10-01

申请人： Richard J. Czarnik ,  Jeffrey P. DiCarlo ,  Curtis J. Knapper ,  Thomas C. Simard ,  Theodore J. Tarabulski

发明人： Richard J. Czarnik ,  Jeffrey P. DiCarlo ,  Curtis J. Knapper ,  Thomas C. Simard ,  Theodore J. Tarabulski

IPC分类号： F16K4900

CPC分类号： F01N3/2066 ,  B01D53/8625 ,  B01D53/90 ,  F01N2260/024 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02C20/10 ,  Y02T10/24 ,  Y10T137/6552 ,  Y10T137/6579

摘要： An injector for delivery of a fluid into a stream of hot gas is disclosed. The injector has a valve body with an elongated chamber in fluid communication with an orifice. A valve seat surrounds the orifice. A valve plunger is disposed within the chamber, an end of the plunger being adapted to sealingly interengage the seat. The plunger is slidably movable between an open and a closed position to open and close the orifice. A fluid inlet and an outlet are disposed within the valve body to deliver fluid to an annular fluid passageway in the chamber adjacent to the valve seat. Fluid is circulated through the annular passageway to cool the valve and a portion of the fluid is expelled through the orifice when the orifice is opened. The plunger is biased into the closed position by a coil spring and movable into the open position by a solenoid actuator mounted atop the valve body. The injector is mounted on an exhaust conduit of an internal combustion engine with the orifice in fluid communication with the exhaust gases. A heat shield surrounding the orifice is interposed between the exhaust gases and the valve body, a radiant heat reflector is positioned between exposed parts of the injector and the exhaust conduit, and an atomizing hook is positioned in a spaced apart relation facing the orifice to control the dispersion characteristics of the expelled fluid.

摘要翻译： 公开了一种用于将流体输送到热气流中的喷射器。 喷射器具有阀体，其具有与孔口流体连通的细长室。 阀座围绕孔。 阀柱塞设置在腔室内，柱塞的端部适于密封地相互接合座椅。 柱塞可滑动地在打开和关闭位置之间移动以打开和关闭孔口。 流体入口和出口设置在阀体内以将流体输送到邻近阀座的腔室中的环形流体通道。 流体通过环形通道循环以冷却阀，并且当孔打开时，流体的一部分通过孔排出。 柱塞通过螺旋弹簧偏压到关闭位置，并通过安装在阀体顶部的螺线管致动器将其移动到打开位置。 喷射器安装在内燃机的排气管道上，孔口与废气流体连通。 围绕孔口的隔热屏蔽在排气和阀体之间，辐射热反射器位于喷射器的暴露部分和排气导管之间，雾化钩定位成面对孔口的间隔开的关系，以控制 排出液的分散特性。