Overflow container for source cylinder of automobile hydraulic clutch or braking system with hydraulic connection for source container having projection for preventing air entering hydraulic system

摘要

The overflow container (12) has a hydraulic fluid chamber (50) defined between a container base (46) and a flexible container cover (52), displaced relative to the base in dependence on the container filling level and coupled to the atmosphere via a vent connection (64) for pressure equalisation between the air volume in the container and the atmosphere. The hydraulic connection (62) for the source cylinder, provided in the container base, has a projection (66) extending into the fluid chamber, defining a given volume (V) which is greater than the air volume in the filled fluid chamber.