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1. 发明公开

EP3208456A1 NOZZLE ASSEMBLY AND FUEL INJECTOR 有权转让
标题翻译：喷嘴组件和燃油喷射器
公开(公告)号：EP3208456A1
公开(公告)日：2017-08-23
申请号：EP17155490.0
申请日：2017-02-09
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： NOYCE, Stephen A. , HARDY, Martin P. , VIT, Romain , TAPIN, Christophe
IPC分类号： F02M51/06 , F02M61/12 , F02M65/00
摘要： ABSTRACT OF THE DISCLOSURE
A nozzle assembly (26) of a fuel injector (10) comprises a nozzle body (28) defining an inner bore extending along a main axis (X), said bore forming at a first extremity a tapered fixed valve seat (42) adapted to receive in sealing contact a complementary tapered needle seating face (52) of a needle valve slidably arranged in the bore, and adapted to translate along the main axis (X) between a closed position where the needle seating face (52) is in sealing contact with the fixed valve seat (42) and, a fully open position where the needle seating face is lifted away from the fixed valve seat.
The nozzle assembly (26) is further provided with a spring assembly radially compressed between the needle and the bore so that in use, when beginning a lift of the needle (36) from the closed position toward the open position, the tapered needle seating face (52) slides and remains in contact against the fixed valve seat (52) instead of coaxially separating immediately.
摘要翻译：本公开的摘要一种燃料喷射器（10）的喷嘴组件（26）包括限定沿主轴线（X）延伸的内孔的喷嘴主体（28），所述孔在第一末端形成锥形固定阀座（其适于以可滑动方式布置在所述孔中且适于沿着所述主轴线在所述针座面的闭合位置和在所述闭合位置之间平移的针阀的互补的锥形针座面（52）与固定阀座（42）密封接触，并且在针座面从固定阀座抬起的完全打开位置。喷嘴组件（26）还设置有径向压缩在针和孔之间的弹簧组件，使得在使用中，当针（36）从闭合位置向打开位置提升时，锥形针座面（52）滑动并保持与固定阀座（52）接触而不是立即同轴分离。

2. 发明公开

EP3196458A1 FUEL INJECTOR SPRAY HOLE 审中-实审转让
标题翻译：燃油喷射器喷射孔
公开(公告)号：EP3196458A1
公开(公告)日：2017-07-26
申请号：EP17152527.2
申请日：2017-01-20
申请人： Delphi International Operations Luxembourg S.à r.l.
发明人： SHI, Junmei , GUERASSI, Noureddine , NOYCE, Stephen A.
IPC分类号： F02M61/18
摘要： A nozzle body (12) of a fuel injector (10) extending along a main axis (X1), the body having a peripheral wall (16) defining an inner blind bore adapted to receive a needle valve, the body extending toward a tip end wherein the peripheral wall closes forming a sac (20) volume. The nozzle body (12) is further provided with injection holes (14) arranged through the wall (16), the injection holes (14) comprising an inner portion (26) and an outer portion (28) joining together in an intersection zone wherein the inner portion is smaller than the outer portion, so that said intersection area forms a step.
摘要翻译：一种沿着主轴线（X1）延伸的燃料喷射器（10）的喷嘴主体（12），所述主体具有限定适于接收针阀的内部盲孔的外围壁（16），所述主体朝向尖端其中周壁闭合形成囊（20）体积。喷嘴体（12）还设置有穿过壁（16）布置的喷射孔（14），喷射孔（14）包括在相交区域中连接在一起的内部部分（26）和外部部分（28），其中内部部分比外部部分小，使得所述交叉区域形成台阶。

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