Compressed air brake system for road vehicle - has relay valve with stopped piston loaded by pressures from different sources

摘要

The compressed air brake system is for a road vehicle. Downstream of the brake valve is connected a force regulatior and a relay valve with actuating piston. The differential piston of the relay valve is loaded on its larger surface by the output pressure of the brake force regulator. On its smaller surface it is loaded by output pressure of the relay valve. Output pressure of the brake valve acts on the differential surface.