Invention and Engineering

China Railways DF4

The Dongfeng 4 (Chinese: 东风4) is a type of diesel–electric locomotive which is used in the People's Republic of China. The DF4 began trial production in 1969 at the Dalian Locomotive and Rolling Stock Works (CRRC Dalian), before entering batch production in July 1974. The DF4 is part of a larger series of Dongfeng electric-drive diesel locomotives, which began with the Dongfeng in 1958, and includes the subsequent models numbered DF2 through DF11. The Dongfeng type locomotive was the first domestically manufactured AC-DC electric transmission diesel locomotive in China. According to a statement by the National Railway Administration of China in 2024, the DF4 is set to operate on China Railways until 2035.

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See also

• ▸Elevator
• ▸Himarë
• ▸Electric generator

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