Patent ID: 6378545
Filing Date: 2002-04-30
Classification: F15B,F16K,Y10T

Abstract:
An electromagnetically actuatable proportional hydraulic valve (10), having a magnetic part (12) comprising an electrically triggerable coil (18), a stationary core (28) protruding into the interior of the coil (18), an armature (38) guided displaceably and acted upon by the coil (18), a closing member (60) coupled with said armature, and having a valve part (14) provided with at least one inflow conduit (50), at least one return conduit (52), at least one work conduit (54) and at least one valve seat (58), said at least one valve seat (58) being in operative communication with the closing member (60) in order to control a pressure-fluid communication between the work conduit (54) and the return conduit (52), characterized in that the closing member (60), at least in the region of its end toward the valve seat (58), has a substantially conical sealing body (60c, 70), whose smaller end face is facing toward the valve seat (58), and that the sealing body (60c, 70) has at least one flow separation edge (60d) on its end remote from the valve seat (58).