Electromagnetic control distributor for use as safety valve, has stressing unit that stresses activation pusher of electromagnet in direction of valve spool, and return unit stressing spool in direction of neutral position

摘要

The distributor has a stressing unit (29) that stresses an activation pusher (18) of an electromagnet (17) in direction of a valve spool (3) longitudinally sliding in a bore of a case (2). The spool is stressed in direction of a neutral position by a return unit (11) when the electromagnet is not controlled, and stroke end position of the pusher is detected using intensity curve of the electromagnet.