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US4660895A Railway locomotive brake control system 失效
铁路机车制动控制系统

Railway locomotive brake control system
摘要:
A railway locomotive brake control system that substitutes a part of a standard freight car brake control valve and interconnected pilot valves and other readily available components to provide the operating functions of the usual specially designed freight locomotive brake valve at a reduced cost. Systems without and with types I or II dynamic brake interlocks are illustrated.
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