RAILWAY VEHICLE BRAKE AIR DISTRIBUTOR TWO-PRESSURE MEMBER Russian patent published in 2001 - IPC

FIELD: railway transport; brake cylinder pressure control. SUBSTANCE: proposed two-pressure member of brake air distributor differs from known one in the fact that cross-section area on inlet hole of plunger channel coupled with main-line space of two-pressure member and cross-section area of inlet hole of plunger channel coupled with spool space of two-pressure member are chosen from relationship where F_p.d. is area of cross-section of inlet hole of plunger channel coupled with spool space of two-pressure member; F_f.d. is area of cross-section of inlet hole of plunger channel coupled with main-line space of two-pressure member; Trelf.d.

is brake release time at freight duty; Trelp.d. is brake release time at passenger duty; K is coefficient taking into account possible technological deviations in design of two- pressure member and in time parameters of braking processes. EFFECT: provision of two pressure in air distributor, i.e. freight and passenger braking duties. 1 dwg