公开(公告)号：US3567135A

公开(公告)日：1971-03-02

申请号：US3567135D

申请日：1969-01-24

申请人： BOSCH GMBH ROBERT

发明人： GEBERT HORST

IPC分类号： F02M51/06 ,  F02M51/08 ,  F02M61/16 ,  F02M63/00 ,  B05B1/30

CPC分类号： F02M61/163 ,  F02M51/0667 ,  F02M61/162 ,  F02M2051/08 ,  F02M2200/505

摘要： An electromagnetically operated fuel injection valve wherein the armature has an annular sealing surface surrounded by an annular chamber and is normally biased against the rear side of a nozzle. The chamber receives fuel by way of one or more channels which extend from the peripheral surface of the armature toward the bottom surface of the channel so that their projections into the plane of the sealing surface are tangential to the chamber. This causes fuel which enters the chamber to circulate therein whereby the magnitude of the axial component of movement of the fuel determines the rate at which the fuel enters the orifice of the nozzle when the electromagnet is energized to retract the armature from the nozzle.