Patent ID: 9534702
Date: 2017-01-03
CPC Classifications: F16K,Y10T

Claim:
1. An electrohydraulic pilot control for a hydraulic device, the pilot control comprising: two proportionally acting pressure control valves; and a control block which accommodates a group of hydraulic valve components in holes and to which two proportional magnets are flange-connected; wherein the two proportional magnets are joined to form an assembly by being encapsulated with plastic and have a common housing of an electrical plug connection, which housing is cohesively connected to the proportional magnets, wherein the assembly of the proportional magnets is fastened to the control block and, is oriented relative to the valve components, which are accommodated in the control block, by a positioning means for acting perpendicular to the movement direction of magnet armatures; wherein the proportional magnets are both equipped with in each case one bow-shaped metal sheet which guides magnetic flux, and have a common flange for fastening to the control block, wherein the flange is reinforced by extensions of the metal sheets; wherein the positioning means provides relative lateral positioning of the assembly of the proportional magnets to the valve components by use of projections extending from valve sleeves in the control block that engage matching cavities defined in magnet cones of the proportional magnets; or wherein the positioning means provides relative lateral positioning of the assembly of the proportional magnets to the valve components by use of projections extending from the magnet cones that engage in receiving holes defined in the valve sleeves.