Valve play element for compensating for play in an internal combustion engine's valves has a piston assigned with a pressurized space, a reservoir for a hydraulic substance and an adjusting element in the pressurized space

摘要

Devices supply a substance, which inhibits a piston's (20) adjusting movement if needed. Fitted on the outer side (54) of the piston and linked to a controllable hydraulic pipe (46), a hydraulic blocking space (48) blocks the piston's movement. The piston has a radial extension (22), which separates the hydraulic blocking space into first (42) and second (44) subspaces.