Electro-magnetic valve for automobile hydraulic brake installation comprises body with longitudinal bore, valve dome in which armature can move longitudinally, pushrod transferring armature movement onto valve seat closing member

摘要

The valve (10) has a valve body (16) with a longitudinal bore (17), a valve dome (18) and an armature (19) able to displace longitudinally in the dome. A pushrod (36) transfers the armature movement on to a closing member (45) of a valve seat (46). The pushrod is driven over the whole length of the bore with a slight radial play and is provided on the side of the casing with two longitudinal separated channels. The pushrod has a central bore (40) and the closing member in the shape of a bolt is driven in the bore. Axially extending longitudinal grooves are located in the closing member and liquid jets leaving the valve seat are driven through these grooves into the central bore during opening of the valve and initiate a circular flow in order to de-aerate the armature chamber (37).