Solenoid valve for fuel injection installation of a motor vehicle, has annular volume with section aligned in direction of axis and delimited by cylindrical and frontal surfaces of case and by envelop and annular surfaces of armature

摘要

The valve has an annular volume (15) between a case (12) and an armature (14). The volume has a rectangular section aligned in a direction of an axis and delimited by cylindrical and frontal surfaces (19, 17) of the case and by envelop and annular surfaces (21, 20) of the armature. A length of the surface (21) in the direction of the axis and a width of the surface (20) in a transversal direction of the axis are in a preset ratio.