公开(公告)号：EP2009276B1

公开(公告)日：2012-09-12

申请号：EP08159065.5

申请日：2008-06-26

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Pimenta, Ricardo ,  Lambert, Malcolm ,  Soteriou, Cecilia ,  Limmer, Andy

IPC: F02M61/18

CPC classification number: F02M61/1806 ,  Y10T29/49432

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

Applicant: Delphi Technologies Holding S.à.r.l.

Inventor： Soteriou, Cecilia ,  Balin, Marion

IPC: F02M61/18 ,  F02M61/06

CPC classification number: F02M61/18 ,  F02M61/06 ,  F02M61/1866 ,  F02M61/1893

Abstract: 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).

Abstract translation: 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）。