Abstract: An electromatically operated valve for automatic setting of a reduced flow cross section effective for a closed position of the valve is to be achieved. The valve has, in a valve dome, a longitudinally movable magnet armature with a separate valve push-rod which carries a closing element of a first seat valve which is open in the rest position. The first seat valve is located in a valve chamber from which a first pressure medium passage leads to a control chamber remote from the closing element and a second pressure medium passage leads to a control chamber, near the closing element, of the magnet armature. In addition, a second valve formed from the magnet armature and the valve push-rod is provided by means of which a connection between the first pressure medium passage and the second control chamber can be switched on and off.

Abstract: An electromagnetic valve having a magnet armature which can be moved longitudinally in a valve dome and the valve tappet of which carries a closing member of a first seat valve, which valve is open in the rest position. The first seat valve is situated in a valve chamber, from which first and second pressure-medium passages lead to first and second chambers arranged axially at both ends of the magnet armature. The connection between the first control chamber, which is remote from the closing member, and the second chamber, which is close to the closing member, is controlled by the magnet armature by a second seat valve, which is open in the rest position. When the second seat valve assumes its closed position, the pressure in the first control chamber, which is remote from the closing member, brings about a displacement of the magnet armature counter to the force of a return spring, resulting in a reduction in the cross section of flow of the first seat valve.

Abstract: An electromagnetic valve having a magnet armature which can be moved longitudinally in a valve dome includes a valve tappet which carries a closing member of a first seat valve, which is open in the rest position. The first seat valve is situated in a valve chamber, from which first and second pressure-medium passages lead to ends of the magnet armature, which is sealed off at the circumference. The connection between the first pressure-medium passage and a control chamber between that end of the magnet armature which is remote from the closing member and the valve dome is controlled by a second seat valve (54), which is closed in the rest position. When the second seat valve (54) assumes its open position, the pressure in the control chamber (46), which is remote from the closing member, brings about a displacement of the magnet armature counter to the force of a return spring, resulting in a reduction in the cross section of flow of the first seat valve.