Brake system with anti-skid control for motor vehicles

A brake system including anti-skid control for motor vehicles, having a brake booster, a brake valve that is controllable by a brake pedal, an emergency brake piston that is displaceable by the brake pedal at least in an event of pressure failure, having a master brake cylinder that is combined in one housing with the brake booster, said master brake cylinder has at least one master brake piston which defines two brake chambers disposed in one dynamic brake circuit and one static brake circuit, respectively, for feeding a brake pressure into the brake circuits, said first brake chamber is located in the dynamic brake circuit and can be made to communicate via the brake valve with a pressure source (10) or a relief point, said emergency brake piston (28;

• 128) and the master brake piston (50) are accommodated in a continuous housing bore (30) in such a manner that said emergency brake piston (28;
• 128) forms a second defining wall (281) for said first brake chamber (15) and the master brake piston (50) rests with force on the emergency brake piston (28;
• 128);
• means are provided that at least upon the onset of an anti-skid control keep said emergency brake piston (28;
• 128) in its undisplaced basic position or returns said emergency brake piston to its basic position;
• and at least one switching valve (42) is connected to the first brake chamber (15) for pressure modulation in the first brake chamber (15).