Master brake cylinder for motor vehicles

摘要

A master brake cylinder for two-circuit brake systems of motor vehicles which includes two cylinders and pistons for the two brake circuits arranged one behind the other in a tandem arrangement; the piston for the front axle brake circuit thereby has a larger diameter than the piston for the rear axle brake circuit while the pressure space for the front axle brake circuit is connected with that of the rear axle brake circuit by way of a line in which a control valve is arranged that is controlled in dependence on the vehicle load.