Electromagnetic directional control valve of a hydraulic

摘要

Electromagnetic directional control valve of the hydraulic type, in particular a valve chamber housing (2), incorporated in (2) in the housing 3-port 2-position solenoid directional control valve of the hydraulic type (1), and (3) It has, first conduit, the valve seat hole of the first of the connecting portion communicating with the pressure line to the (P) and in particular (6), pipe a second valve chamber (3), in particular It is provided with a valve seat holes as a second connecting portion communicating with the working line (A), and (7), the conduit of the third, free opening communicating with the tank line in the (T) in particular and (8), further , an electromagnet (4), moveable and electromagnetic directional control valve hydraulic formula has a valve plunger which is arranged a valve chamber (3) partially within and (5) the electromagnet (4) , inside the valve chamber (3), the first seal surface directed to (6) the valve seat hole and the first (9), the valve seat hole of the plunger second valve (5) is (7) has the seal surface of the second directed to a (11), whereby the valve seat hole of the second valve seat hole of the first (6) or (7) is closeable selectively, the valve plunger (5) is, extend (4) electromagnet through the valve seat hole of the second (7) valve chamber (3), upon closure of (7) the valve seat the second hole, the valve plunger ( 5), the second pipe 2 is adapted to be drawn in (7) in the valve seat hole of the second difference by the area ratio by the pressure of the working line (A) in particular.