VEHICLE BRAKE PNEUMATIC DRIVE Russian patent published in 2000 - IPC

FIELD: transport engineering; pneumatic brake systems. SUBSTANCE: supply pipelines of control cock of energy accumulators and relay valve are interconnected and supplied from outlet of two-line bypass valve whose first inlet is connected through emergency cock to supply main line before protection valve with resistance to bypassing, and second inlet is connected to receiver of energy accumulators. Opening pressure of bypass valves of operating service brakes, energy accumulators and consumers circuits is either equal to or is greater than energy accumulator release pressure, and trailer brake control valve and coupling head are supplied from receiver of energy accumulator circuit. EFFECT: possibility of emergency release of spring energy accumulators from vehicle compressor of external compressed air source, reduced volume of receivers of energy accumulators and consumers circuits, prevention of operation of energy accumulators in case of tear-off of trailer, enhanced safety on road. 5 dwg