초록 ▼

A hydraulic solenoid valve includes a valve housing with bores for receiving a hydraulic medium and having at least one consuming device connection and a return connection connected to the bores. A piston is connected within the valve housing and has at least one piston bore. A first valve with a co

A hydraulic solenoid valve includes a valve housing with bores for receiving a hydraulic medium and having at least one consuming device connection and a return connection connected to the bores. A piston is connected within the valve housing and has at least one piston bore. A first valve with a corresponding valve seat is connected to the piston for opening and closing the piston bore. The first valve in its open position provides communication between the consuming device connection and the reservoir connection. A magnet housing has connected therein an armature. When the armature is displaced during normal operation in both directions, it rests at the first valve and forces the first valve into its valve seat. A return spring is positioned between the piston and the valve housing. The armature is displaceable by the force of the return spring. The piston is displaceable by the armature against the force of the return spring. The armature has at least one throttle passage on an end face facing away from the piston through which during displacement of the armature by the force of the return spring the hydraulic medium flows and generates a pressure counteracting the force of the return spring.

대표청구항 ▼

A hydraulic solenoid valve comprising: a valve housing including bores for receiving a hydraulic medium and having at least one consuming device connection and a return connection connected to said bores; a piston connected within said valve housing, said piston having at least one piston bore; a fi

A hydraulic solenoid valve comprising: a valve housing including bores for receiving a hydraulic medium and having at least one consuming device connection and a return connection connected to said bores; a piston connected within said valve housing, said piston having at least one piston bore; a first valve with a corresponding valve seat, said first valve connected to said piston for opening and closing said piston bore, said first valve in an open position providing communication between said consuming device connection and said return connection; a magnet housing; an armature connected within said magnet housing; a return spring connected between said piston and said valve housing, said armature in normal operation, when displacing said piston against the force of said return spring, resting at said first valve and closing said valve seat; a first hydraulic chamber between an end face of said magnet housing remote from said piston and an end face of said armature facing away from said piston and a second hydraulic chamber between a further end face of said magnet housing adjacent to said piston and a further end face of said armature facing said piston; and said armature having at least one connecting line for connecting said first and said second hydraulic chambers and a second valve that opens when said piston is displaced against the force of said return spring and closes when said piston is displaced by said force of said return spring, said connecting line having at least one throttle passage.