Solenoid valve
AssigneeBuerkert Werke GmbH
InventorsChristian Bezold, Dina Link
Life of this patent
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Abstract
A solenoid valve has a valve drive which includes an electromagnet, an actuator coupled to a diaphragm mounted for movement between an open position and a closed position by the valve drive, a fluid housing having a valve seat, wherein a fluid channel extends in the fluid housing from a first fluid connection to the valve seat and, proceeding from the valve seat, to a second fluid connection, and the diaphragm which cooperates with the valve seat. A support ring surrounds the actuator and rests against the diaphragm. An entrainment geometry is provided between the support ring and the actuator.
Claims15
A solenoid valve comprising
- a valve drive which comprises an electromagnet;
- an actuator mounted for movement between an open position and a closed position by the valve drive;
- a fluid housing having a valve seat, wherein a fluid channel extends in the fluid housing from a first fluid connection to the valve seat and, proceeding from the valve seat, to a second fluid connection;
- a diaphragm which is configured to cooperate with the valve seat, wherein the actuator is coupled to the diaphragm so that the actuator, when in the closed position, presses the diaphragm onto the valve seat and, when in the open position, lifts the diaphragm off the valve seat;
- a support ring which is mounted for movement in the direction of movement of the actuator, surrounds the actuator and rests against the diaphragm,
- wherein an entrainment geometry is provided between the support ring and the actuator and is designed such that when the actuator moves from the closed position to the open position, there is an idle travel between the actuator and the support ring such that when the actuator initially moves out of the closed position, no movement of the support ring is brought about and, after bridging the idle travel, the support ring is moved together with the actuator by the entrainment geometry toward the open position of the actuator.
Dependencies are inferred from the claim text.