BRAKE APPARATUS OF VEHICLE

摘要

The present invention relates to a brake system of a vehicle, which comprises: a piston which has a hydraulic chamber formed therein and is provided to be slidably movable in a straight line; a housing which has an internal space and is coupled so one side of the piston is slid; a cap housing which is coupled to the housing after assembling a washer between the housing and the cap housing from the other side of the piston; a piston seal provided on the outer periphery of one side of the piston in order for a deformation amount to be generated when the piston retracts; and a deformation member provided adjacent to the piston seal between the housing and the cap housing.