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(一)前言为了满足铁路运输的需要,北京二七机车工厂于1981年设计制造了货运重联北京型内燃机车,共四台(重联时两组)。北京型机车的空气制动系统仅安装一台 NPT5型空气压缩机,压风量为2.4米~3/分,当两台机车重联使用时,为了改善列车制动机的充气缓解性能,势必将两台机车的空气压缩机重联,所以在机车端部车钩旁边加装了重联用总风缸管软管,
(1) Preface In order to meet the needs of railway transportation, Beijing Erqi Locomotive Factory designed and manufactured a cargo-bound Beijing-type diesel locomotive in 1981 with a total of 4 sets (two sets when reconnected). Beijing type locomotive air brake system only installs one NPT5 type air compressor, the air pressure volume is 2.4 meters ~ 3 / minute, when two locomotive reconnection use, in order to improve the train brake air inflation performance, is bound to Two locomotive air compressor reconnection, so in the locomotive end of the hook next to install a reconnection with the total cylinder hose,