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21.发明授权Spray pattern control with non-angled orifices formed on a dimpled fuel injection metering disc having a sac volume reducer 有权具有形成在具有囊体积减小器的凹坑燃料喷射计量盘上的非角度孔的喷雾图案控制公开(公告)号：US06921021B2
公开(公告)日：2005-07-26
申请号：US10753377
申请日：2004-01-09
CPC分类号： F02M61/1853 , F02M51/0653 , F02M51/0671 , F02M61/165 , F02M61/1806 , F02M61/1846 , F02M2200/505 , Y10S239/90
摘要： A fuel injector that includes a housing, a seat, a metering disc and a closure member. The metering orifices can be located on a first virtual circle greater than a second virtual circle as defined by a projection of a sealing surface converging at a virtual apex projected on the metering disc. The metering disc can be dimpled to increase the spray angle. Various parameters can be utilized to achieve a desired cone size and spray angle. A method of controlling spray targeting of a fuel injector is also described.
摘要翻译： 一种燃料喷射器，包括壳体，座椅，计量盘和关闭构件。 测量孔可以位于大于由投影在计量盘上的虚拟顶点会聚的密封表面的突起所限定的第二虚拟圆上的第一虚拟圆上。 计量盘可以变暗以增加喷雾角度。 可以利用各种参数来实现所需的锥体尺寸和喷雾角度。 还描述了一种控制燃料喷射器的喷射瞄准的方法。
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22.发明授权Spray pattern and spray distribution control with non-angled orifices in fuel injection metering disc and methods 有权燃油喷射计量盘和方法中的非倾斜孔喷雾模式和喷雾分配控制公开(公告)号：US06845930B2
公开(公告)日：2005-01-25
申请号：US10183406
申请日：2002-06-28
CPC分类号： F02M61/1826 , F02M51/0671 , F02M61/165 , F02M61/1806 , F02M61/1853 , F02M2200/505
摘要： A fuel injector that allows spray targeting and distribution of fuel to be configured using non-angled or straight orifice having an axis parallel to a longitudinal axis of a valve subassembly. Metering orifices are located about the longitudinal axis and defining a first virtual circle greater than a second virtual circle defined by a projection of the sealing surface onto the metering disc so that all of the metering orifices are disposed outside the second virtual circle. The projection of the sealing surface converges at a virtual apex disposed within the metering disc. At least one channel extends between a first end and second end. The first end is disposed at a first radius from the longitudinal axis and spaced at a first distance from the metering disc. The second end is disposed at a second radius with respect to the longitudinal axis and spaced at a second distance from the metering disc such that a product of the first radius and the first distance is approximately equal to a product of the second radius and the second distance. Methods of controlling spray distribution and targeting are also provided.
摘要翻译： 一种燃料喷射器，其允许使用具有平行于阀子组件的纵向轴线的轴线的非角度或直孔来配置燃料的喷射瞄准和分配。 计量孔围绕纵向轴线定位，并且限定出大于由密封表面在计量盘上的突起限定的第二虚拟圆的第一虚拟圆，使得所有计量孔都设置在第二虚拟圆的外侧。 密封表面的突起会聚在设置在计量盘内的虚拟顶点。 至少一个通道在第一端和第二端之间延伸。 第一端设置在距离纵向轴线的第一半径处并且与计量盘隔开第一距离。 第二端相对于纵向轴线设置在第二半径处，并且与计量盘隔开第二距离，使得第一半径和第一距离的乘积近似等于第二半径与第二半径的乘积 距离。 还提供了控制喷雾分布和靶向的方法。
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公开(公告)号：US06360960B1
公开(公告)日：2002-03-26
申请号：US09572098
申请日：2000-05-17
IPC分类号： F02D106
CPC分类号： F02M61/1853 , F02M51/0671 , F02M61/18
摘要： A fuel injector for use in a fuel injection system of an internal combustion engine is disclosed. The fuel injector includes a body, a needle, and a metering orifice. The body has a longitudinal axis and a valve seat. The valve seat has a beveled annular surface and a central opening therethrough. The central opening is formed by a generally cylindrical wall. The needle includes a first portion having a first cross sectional area and a second portion having a second cross-sectional area. The second portion includes a needle end face which extends generally perpendicular to the longitudinal axis. The needle is reciprocally located within the body along the longitudinal axis and is biased against the valve seat. The metering orifice is connected to a downstream end of the valve body. A fuel sac is generally formed by the metering orifice, the needle end face, and the cylindrical wall. A projection extends into the fuel sac, reducing a volume of the fuel sac. The projection extends from at least one of the needle end face and the metering orifice. A method of reducing unmetered fuel in a fuel injector by reducing sac volume is also disclosed.
摘要翻译： 公开了一种用于内燃机的燃料喷射系统的燃料喷射器。 燃料喷射器包括主体，针和计量孔。 主体具有纵向轴线和阀座。 阀座具有倾斜的环形表面和穿过其的中心开口。 中央开口由大致圆柱形的壁形成。 针包括具有第一横截面积的第一部分和具有第二横截面积的第二部分。 第二部分包括大致垂直于纵向轴线延伸的针端面。 针沿着纵向轴线往复地位于主体内并且被偏压抵靠阀座。 计量孔连接到阀体的下游端。 燃料囊通常由计量孔，针端面和圆柱形壁形成。 突起延伸到燃料囊中，减小燃料囊的体积。 突起从针端面和计量孔中的至少一个延伸。 还公开了一种通过减小囊体积来减少燃料喷射器中的未计量燃料的方法。
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公开(公告)号：US5722375A
公开(公告)日：1998-03-03
申请号：US437908
申请日：1995-05-10
CPC分类号： F02M69/047
摘要： A shroud member for converting an extending tip fuel injector into an air assist fuel injector wherein the air metering is performed at a distance remote from the O-ring seals holding the injector into the engine manifold.
摘要翻译： 一种护罩构件，用于将延伸尖端燃料喷射器转换成空气辅助燃料喷射器，其中，空气计量在远离保持喷射器的O形环密封件进入发动机歧管的距离处进行。
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25.发明授权
公开(公告)号：US3971354A
公开(公告)日：1976-07-27
申请号：US589174
申请日：1975-06-23
CPC分类号： F02D41/068
摘要： An electronic fuel control system for an internal combustion engine is disclosed capable of providing an enriched fuel/air mixture to the engine as a function of the engine's temperature and the engine's load during the transient warm up period. The fuel control unit embodies a full load warm up enrichment circuit controlling, in response to engine temperatures below a predetermined temperature and engine loads as determined from the pressure in the engine's intake manifold, the quantity of fuel being delivered to the engine. In the preferred embodiment the full load warm up enrichment circuit is a current sink sinking a portion of the current charging the injection timing capacitor in the electronic control unit to increase the duration of the generated injection fuel delivery pulses.
摘要翻译： 公开了一种用于内燃机的电子燃料控制系统，其能够在瞬态预热期间作为发动机的温度和发动机的负载的函数来向发动机提供富集的燃料/空气混合物。 燃料控制单元体现了满负荷加热浓缩电路，其响应于发动机温度低于预定温度，并且根据发动机进气歧管中的压力确定的发动机负荷来控制输送到发动机的燃料量。 在优选实施例中，全负载加热浓缩电路是在电子控制单元中灌注当前对喷射定时电容器充电的一部分的电流吸收器，以增加产生的喷射燃料输送脉冲的持续时间。
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