Electromagnetically actuated valve particularly for slip-controlled hydraulic brake systems in motor vehicles

An electromagnetically actuated valve (10), for slip-controlled hydraulic brake systems in motor vehicles, in which:

• a circular, cylindrical magnetic armature (21) is received so that it moves longitudinally in a closed, tubular valve dome (14),
• the valve dome (14) is encompassed by a magnet coil (17),
• a valve tappet (22), having a closing member (24) disposed remote from the armature, leads from the magnetic armature (21),
• a valve body (27), having a valve seat (30) and having a longitudinal bore (29) that feeds into this seat, is attached in a housing (11) of the valve (10) as a pressure fluid inlet,
• when the magnet coil (17) is not excited, the closing member (24) is lifted from the valve seat (30) due to the effect of a restoring spring (32),
• the closing member (24) and the part of the valve body (27) which has the valve seat (30) are situated forming a seat valve (31) in a valve chamber (35), which communicates with a pressure fluid outlet of the valve (10),
• the valve chamber (35) has a partial valve chamber (43), which functions as a retaining capacity, and from which a first pressure fluid conduit (45) leads to a control chamber (46), which is disposed between a valve dome (14) and a face end (47) of the magnetic armature (21) remote from the closing member (24),
• a second pressure fluid conduit (48) leads from the valve chamber (35) to a face end (49) of the magnetic armature (21) close to the closing member (24),
• a pressure produced in the partial valve chamber (43) creates in the control chamber (46) a force that acts on the magnetic armature (21) against the tension of the restoring spring (32), as a result of which, the seat valve (31) assumes a partially closed position, which differs from its rest position,
• the valve seat (30) is embodied having an open contour cross sectional in comparison to the partial valve chamber (43),
• the valve closing member (24), in cross section, is at least approximately adapted to the contour of the valve seat (30) and has a flattening end (25) directed against the longitudinal bore (29) of the valve body (27).