NON-RETURN VALVE FOR A HYDRAULIC EXTERNALLY POWERED VEHICLE BRAKE SYSTEM, AND HYDRAULIC EXTERNALLY POWERED VEHICLE BRAKE SYSTEM

摘要

The invention relates to a non-return valve (28) having a valve opening spring (29), said non-return valve being positioned between an unpressurised brake fluid reservoir (10) and a master brake cylinder (22) of a hydraulic externally powered vehicle brake system (1) having an externally powered brake pressure generator (3). Flow can pass through the non-return valve in the direction of the master brake cylinder (22) and the non-return valve blocks a backflow from the master brake cylinder (22) into the brake fluid reservoir (10) starting from a counterpressure in the master brake cylinder (22) determined by the valve opening spring (29).