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装用5Д49型柴油机的2ΤЭ116型内燃机车,从1972年开始运用并配属斯维尔德洛夫斯克、东南、顿聂茨、南方、中亚细亚和北方等五个铁路局的20个机务段。10多年来,2ТЭ116型内燃机车及其主要机组和部件,不管是制造厂,还是机务段,都对它不止一次地进行了改进。在5Д49型柴油机上,已解决了下述问题:提高了曲轴强度、平衡、减振和耐磨性,保证了机体主轴承同轴度,改进了主轴瓦、连杆瓦的承载能力以及辅助电机和配气机构传动装置的工作能力,增加了气缸盖、气缸套及其水套
The 2TE116 diesel locomotive with a 5Д49 diesel engine has been used since 1972 and is equipped with 20 locomotive depots for five railways such as Sverdlovsk, Southeastern, Donetsk, Southern, Central Asia and Northern China. For more than 10 years, the 2ТЭ116 diesel locomotive and its main units and components, both at the manufacturing plant and the depot, have been modified more than once. On the 5Д49 diesel engine, the following problems have been solved: improved crankshaft strength, balance, vibration damping and wear resistance, ensuring the coaxiality of the main bearing of the main body, improving the carrying capacity of the main bearing bush and the connecting rod bush, and the auxiliary motor And with the work of the transmission gear mechanism, an increase of cylinder head, cylinder liner and water jacket