RAIL VEHICLE AIR MAIN COMBINATION COCK Russian patent published in 2001 - IPC

FIELD: railway transport. SUBSTANCE: proposed invention can be used on locomotives for disconnection of air brake valve from brake main line and for emergency braking. Combination cock of rail vehicle has body 1 with inlet and outlet holes, emergency brake valve 11 installed in atmospheric hole 4, shutoff member 6 made in form of ball stopper with through hole installed with hermetically sealed contact on opposite ring seals 7 and arranged in space of body 1 with provision of possibility of forming, when stopper is in open position, a through channel 32. Drive 8 of shutoff member is made in form of spindle connected with shutoff member 6 with handle 10 fitted on spindle and provided with drive 12 of emergency brake valve and stop 39. It has also emergency position stop and closed position stop of shutoff member. EFFECT: increased overhaul period of combination cock, reduced time taken for operation of cock at emergency braking. 10 cl, 5 dwg