FLUID RETURN CIRCUIT FOR ANTILOCKING BRAKE SYSTEMS

摘要

The fluid return circuit in an antilocking control system for vehicle brakes includes a pump constructed to prevent introduction of air into the brake fluid system. The pump is of the positive displacement-type and includes a piston and a drive for the piston. The drive is arranged so that it operates the piston only during the working or pumping stroke and has no effect on the piston during the return or inlet stroke. Instead, the return stroke of the piston is effected only as a consequence of the presence of fluid to be returned.