SOUPAPE D'INJECTION DE COMBUSTIBLE

摘要

In a fuel injection valve the valve needle is slidably held by a guide sleeve having a spherical head that cooperates with a spherical support in the valve body to permit a slight swiveling motion of the sleeve and thus a centering of the valve needle with respect to its valve seat. Below its spherical portion, the said head is also supported by an internal shoulder of the valve body with the interposition of a metallic ring and an axially and radially sealing packing ring.