ZWEIKREIS-BREMSVENTIL, INSBESONDERE FUSSBREMSVENTIL FUER BREMSANLAGEN VON FAHRZEUGEN.

摘要

A dual circuit car brake system has a foot actuated brake valve. The latter is actuated by a rod (1), which acts on a piston (5) which controls the pressure in a chamber (7), connected to the first brake circuit which controls the rear axle brakes. The pressure in the chamber actuates a relay piston, which controls the second circuit for the front axle brakes. In the event of a failure of pressure in either circuit, the faulty circuit is shut off and the operating pressure in the active circuit is maintained by a pressure limiting valve embodied in the foot actuated valve for each circuit.