Anti-lock hydraulic braking system, in particular for motorized two-wheel vehicles

An anti-lock hydraulic braking system for two-wheel vehicles, comprising

• a wheel brake circuit which comprises a main brake cylinder, at least one wheel brake cylinder and a switching valve;
• and
• an auxiliary pressure circuit which is connected in parallel between the switching valve and the wheel brake cylinder on the wheel brake circuit and which comprises a hydraulic pump for producing a volume flow, a throttle device arranged downstream of the hydraulic pump, and a volume equalization device;
• the braking system is provided with a skid-controlled operating phase;
• the switching valve, for the skid-controlled operating phase of the braking system, has a basic position, in which it hydraulically connects the main brake cylinder and the wheel brake cylinder, and a switched position in which it prevents a build-up of a braking pressure on the wheel brake cylinder via the main brake cylinder, while the braking pressure on the wheel brake cylinder can be modulated by the auxiliary pressure circuit;
• the volume equalization device is connected between the hydraulic pump and the throttle device on the auxiliary pressure circuit;
• and
• the hydraulic pump is constructed to vary the volume flow in order to withdraw hydraulic fluid from the wheel brake circuit in a defined manner.