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DD51型内燃机车 DD51型内燃机车是一种国产最早的2000马力级干线客、货两用标准型机车。从1962年至1978年的16年里,共生产了649台。DD51型机车装有两台1100马力的DmL61Z型柴油机,配备的液力变速箱是充排油式DW2型变速箱。此外,从驱动轴的布置和维修方便考虑,DD51型机车还在干线机车中最先采用了凸型车体。机车全长18m,轴式为B—2—B,其中“2”表示中央的从动转向架。
DD51 diesel locomotive DD51 diesel locomotive is a kind of domestic earliest 2000 horsepower class passenger, cargo dual-purpose standard locomotive. In the 16 years from 1962 to 1978, a total of 649 units were produced. DD51 locomotive equipped with two 1100 hp DmL61Z diesel engine, equipped with a hydraulic transmission is filled with oil-type DW2 gearbox. In addition, from the drive shaft layout and maintenance considerations, DD51 locomotives are also the first in the trunk locomotive with convex body. The locomotive is 18m long and the axle type is B-2-B, where “2” indicates the central driven bogie.