Patent ID: 8006951
Filing Date: 2011-08-30
Classification: B60T,F16K

Abstract:
1. In a solenoid valve having a magnet unit and a valve cartridge that has a capsule, an armature that is guided in the capsule in a longitudinally mobile fashion and connected to a sealing pin guided inside a valve insert in a longitudinally mobile fashion, and a valve body with a sealing seat; a magnetic force generated by the magnet unit moves the armature together with the sealing pin from an initial position toward the valve body counter to the force of a return spring, causing a sealing region of the sealing pin to move into the sealing seat and close the sealing seat completely in an end position, where the initial position represents a maximum volumetric flow between a valve inlet and a valve outlet, the improvement comprising a spring support embodied and situated so that the return spring is supported outside the volumetric flow and presses the armature into the initial position against the capsule, a sleeve having at least one through flow opening situated between the valve insert and valve body, and an annular filter situated inside the sleeve and slid at least partway onto the spring support, wherein the valve inlet and valve outlet are embodied and situated so that the direction of the volumetric flow assists the closing motion of the armature with the sealing pin, and the valve inlet is situated in the vicinity of the sleeve and the sleeve is permanently joined to the valve insert and the valve body.