Piston sliding valve i.e. cartridge valve, for use in camshaft adjuster, has non-return valve i.e. ball seat valve, arranged in sleeve of hydraulic part, where flow opening is oriented in sleeve with non-return valve in blocking direction

摘要

The valve has a non-return valve (50) i.e. ball seat valve, arranged in a sleeve of a hydraulic part. A flow opening is oriented in the sleeve with the non-return valve in a blocking direction i.e. ball movement direction, which is arranged at right angle to a piston sliding movement direction, where the blocking direction differs from the movement direction. A ball seat of the non-return valve is formed as a conical opening, which is formed at a lateral connection of the sleeve. An independent claim is also included for a piston sliding valve assembling method.