Camshaft adjusting device

A camshaft adjusting device comprising:

• a vane cell adjuster including a stator connectable to a crankshaft of an internal combustion engine;
• and a rotor rotatably mounted in the stator connectable to a camshaft, multiple webs being provided on the stator, the multiple webs subdividing an annular space between the stator and the rotor into a plurality of pressure chambers, the rotor including a rotor hub and a plurality of vanes extending radially outwardly from the rotor hub, the plurality of vanes subdividing the plurality of pressure chambers into two groups of working chambers having a different operating direction, each of which may be acted upon by pressure medium flowing into or out of a pressure medium circuit, and
• a central locking device for locking the rotor in at least one locking position relative to the stator, the central locking device including at least two spring-loaded locking pins lockable in a locking slot secured to the stator in an accommodating space, the at least two spring-loaded locking pins locking in the locking slot when the rotor rotates from a direction of an “early” or “late” stop position into the at least one locking position from different directions, one of the at least two spring-loaded locking pins together with the accommodating space forming a valve device, the one of the at least two spring-loaded locking pins forming a valve pin, and the valve pin being a stepped pin,
• the valve device being fluidically connectable to a respective one of the working chambers via a first or a second outflow pressure medium line, an inflow pressure medium line being connected only to the second outflow pressure medium line in a first switching position of the valve device, and the first outflow pressure medium line and the second outflow pressure medium line being fluidically connected to the inflow pressure medium line in a second switching position.