| 摘要 |
railway transport; brake systems. SUBSTANCE: proposed electric air distributor has two-pressure unit, three-pressure unit, check valve, electromagnetic brake valve, electromagnetic release valve and change-over device. Check valve is installed in channel connecting control chamber of two-pressure unit with brake cylinder pressure control channel, between two-pressure unit control chamber and electromagnetic brake valve. EFFECT: prevention of pressure drop in brake cylinder at emergency braking. 2 cl, 1 dwg
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