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2. 发明公开

EP2369166A1 Injection nozzle 有权转让
标题翻译： Einspritzdüse
公开(公告)号：EP2369166A1
公开(公告)日：2011-09-28
申请号：EP10157224.6
申请日：2010-03-22
申请人： Delphi Technologies Holding S.à.r.l.
发明人： Soteriou, Cecilia , Balin, Marion
IPC分类号： F02M61/18 , F02M61/06
CPC分类号： F02M61/18 , F02M61/06 , F02M61/1866 , F02M61/1893
摘要： An injection nozzle (30) for an internal combustion engine, the injection nozzle (30) comprising a nozzle body (32) provided with a bore (36) within which a valve needle (34) is moveable, the valve needle (34) being engageable with a substantially conical valve seating (38) to control fuel delivery through a set of nozzle outlets (40), said nozzle outlets including respective entry openings (40a) defined in a wall of a sac volume of the nozzle body, wherein the valve needle includes a first valve region (52), a second valve region (54) and a seat region (60) defined by a transition between the first and second valve regions (52, 54) which seats against the valve seating (38) when the nozzle is in a non-injecting state. The valve needle (34) comprises a third valve region (62), adjacent the second valve region, the third valve region having an outer surface (65) defining a curved profile, the end of the outer surface (65) terminating substantially in alignment with the entry openings (40a).
摘要翻译：一种用于内燃机的喷嘴（30），所述注射喷嘴（30）包括具有孔（36）的喷嘴体（32），阀针（34）可移动到所述孔内，所述阀针（34）为可与基本上锥形的阀座（38）接合以控制通过一组喷嘴出口（40）的燃料输送，所述喷嘴出口包括限定在喷嘴体的囊体积的壁中的相应入口（40a），其中阀针头包括第一阀区域（52），第二阀区域（54）和由第一和第二阀区域（52,54）之间的过渡限定的座区域（60），所述过渡部分位于阀座（38）喷嘴处于非喷射状态。阀针（34）包括与第二阀区相邻的第三阀区（62），第三阀区具有限定弯曲轮廓的外表面（65），外表面（65）的端部基本上终止具有入口（40a）。

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