公开(公告)号：US20060108452A1

公开(公告)日：2006-05-25

申请号：US11265910

申请日：2005-11-03

申请人： Claus Anzinger ,  Luca Gestri ,  Luca Matteucci ,  Willibald Schurz ,  Martin Simmet

发明人： Claus Anzinger ,  Luca Gestri ,  Luca Matteucci ,  Willibald Schurz ,  Martin Simmet

IPC分类号： F02M61/08

CPC分类号： F02M61/18 ,  F02M61/08 ,  F02M61/1806

摘要： A valve for injecting fuel has a valve body (4), in which a recess is embodied. The recess widens in a downstream side region (11) to a separation edge. The valve further comprises a valve needle which is arranged in the recess and has a closing element (14). In a closed position the closing element (14) seats on a valve seat (18) and blocks or else releases the flow. The closing element (14) is embodied such that a gap (19) is embodied between the valve body (4) and the closing element (14) downstream of the valve body (4), the gap comprising a gap angle (β), a gap length (l) and a maximum gap width (s). The gap angle (β) and the gap length (1) are embodied such that in the closed position, the maximum gap width (s) is at least as large as a surface roughness of the valve body (4) or of the closing element (14) and that the maximum gap width (s) amounts to a maximum of 10 micrometers.

摘要翻译： 用于喷射燃料的阀具有其中体现凹部的阀体（4）。 凹部在下游侧区域（11）中变宽到分离边缘。 所述阀还包括阀针，所述阀针布置在所述凹部中并且具有闭合元件（14）。 在关闭位置，关闭元件（14）位于阀座（18）上并阻塞或释放流体。 关闭元件（14）被实施为使得在阀体（4）和阀体（4）下游的闭合元件（14）之间具有间隙（19），该间隙包括间隙角（β） 间隙长度（l）和最大间隙宽度（s）。 间隙角（β）和间隙长度（1）被实施为使得在关闭位置中，最大间隙宽度（s）至少与阀体（4）或闭合元件（4）的表面粗糙度一样大 （14），最大间隙宽度（s）最大为10微米。