| abstract |
Task: Electrohydraulic pressure control valve (1) with a specification of the control pressure by a proportional electromagnet (2) and with a fluidic control device (11), which consists of a valve sleeve (3) and a movable sealing body (4), which can be produced particularly cost-effectively in mass production is and achieves a long service life. Solution: The pressure control valve has a plastic housing (5) which surrounds the coil (6) of the electromagnet (2) and also partially seals the valve sleeve (3), the plastic housing (5) being flanged to a hydraulic device (7) to be controlled or in this partially installed and wherein the required seals (8) between the sub-surfaces of the valve sleeve (3) and sub-surfaces of the plastic housing (4) by narrow gaps, by press-fits, by at least one side bonded sealing compounds or, if the valve sleeve made of plastic, from Welding are made. Application: Electrohydraulic pilot control of hydraulic directional control valves, hydraulic pumps or hydraulic motors |