公开(公告)号：EP2071174B1

公开(公告)日：2011-03-23

申请号：EP07122785.4

申请日：2007-12-10

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

Inventor： Bonneau, David ,  Trenado, Guillaume

IPC: F02M55/02 ,  F02M55/04

CPC classification number: F02M55/025 ,  F02M55/04 ,  F02M2200/315

公开(公告)号：EP2204574B1

公开(公告)日：2012-03-07

申请号：EP08172800.8

申请日：2008-12-23

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

Inventor： Bonneau, David ,  Trenado, Guillaume

IPC: F02M55/02 ,  F02M63/02

CPC classification number: F02M55/025 ,  F02M63/0225

公开(公告)号：EP2204574A1

公开(公告)日：2010-07-07

申请号：EP08172800.8

申请日：2008-12-23

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

Inventor： Bonneau, David ,  Trenado, Guillaume

IPC: F02M55/02 ,  F02M63/02

CPC classification number: F02M55/025 ,  F02M63/0225

Abstract: The invention relates to a fuel injection system of the common rail type having a rail body comprising a central bore and one or more outlet bores in fluid communication with the central bore for communicating with a respective fuel injector. The outer circumference of the rail body is substantially oval in cross-section and is thicker in cross-section in a direction substantially perpendicular to the outlet bore axis as compared to the thickness in cross-section substantially parallel to the outlet bore axis. By increasing the thickness of the rail body in this way, stresses at the intersection of the intersection of the central bore with the outlet holes may be reduced by up to 10% or more, thereby increasing the acceptable cycled running pressure of the system.

Abstract translation: 本发明涉及一种共轨式燃料喷射系统，其具有轨道主体，轨道主体包括中心孔和与中心孔流体连通的一个或多个出口孔，用于与相应的燃料喷射器连通。 轨道体的外周截面基本上为椭圆形，并且与基本上平行于出口孔轴线的横截面厚度相比，在基本垂直于出口孔轴线的方向上的横截面较厚。 通过以这种方式增加轨道体的厚度，中心孔与出口孔交点处的应力可以减少10％或更多，从而增加系统可接受的循环运行压力。