ELECTRICAL AND PNEUMATIC BRAKING SYSTEM FOR RAILWAY CARS Russian patent published in 2019 - IPC B60T13/66 B60T8/18 

FIELD: rail vehicles.

SUBSTANCE: invention relates to railway transport. System comprises a compressed air supply line (MWP), a car load signal source, weight batcher (WA) intended for injection of suspended pressure, which determines maximum braking pressure limited depending on load signals, and units (BCA1, …, BCAN) of braking control. Braking control units (BCA1, ..., BCAN) are connected to weight batcher (WA) and comprise switching valve (RV) installed between main line (MBP) and braking cylinder (BC1, …, BCN) to supply controlled brake pressure to said cylinder, less than or equal to level of suspended pressure. Weight dispenser (WA) comprises an electropneumatic drive (EPDA) located between the manifold (MBP) and the input (d) of the drive of the switching valve (RV) and connected to the manifold (MBP) through pressure limiter (3), and an electronic weighing control unit (WCU) which controls the drive (EPDA) depending on the load signal and thus changes the pressure at the input of the switching valve (RV) drive input by the predetermined method.

EFFECT: reduced overall dimensions and simplified maintenance.

10 cl, 3 dwg