Central valve for oscillating motor adjuster of assembled cam shaft, has hollow-piston inserted within bushing that is inserted within hollow pipe and supported along axial direction by clamping device inserted into hollow pipe

摘要

The valve (12) has a bushing (15) inserted within a hollow pipe (16). A hollow-piston (19) is inserted within the bushing and axially displaceable by an electromagnetic actuator (21). The bushing is supported along axial direction by a clamping device (27) that is inserted into the hollow pipe. A helical compression spring (24) is supported at a bottom part (59) of the hollow-piston for pressing the hollow-piston against an operation plunger (20) of the actuator, where the operation plunger rests against another bottom part of the hollow-piston.