China Railways DF9
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The DF9 (Chinese: 东风9) was the first Chinese semi-high-speed diesel locomotive with a top speed of 160 km/h (99.4 mph), which was successfully developed by Qishuyan Locomotive and Rolling Stock Works in 1990. As part of China's Eighth Five-Year Plan scientific and technological project, the DF9 diesel locomotive adopts wheel-to-hollow shaft traction motor full suspension drive system, high-flexibility second-series round springs, lightweight body and other technologies. Although the only two DF9s produced were scrapped in 2011, it laid the foundation for the development of DF11 diesel locomotives.
Overview
The two locomotives were part of China's Eighth Five-Year Plan, one of the key national science and technology projects. They were not only the second locomotive equipped with a 280/285 series diesel engine after the DF8 diesel locomotive, but was also the electric transmission diesel locomotive with the highest single-machine power in China's railways at that time. The power unit of the DF9 diesel locomotive is a 16V280ZJA diesel engine with an installed power of 3,610 kW (4,840 hp).
DF9-0001, with a top speed of 140 km/h (87.0 mph), was completed in October 1990. In April 1991, in order to cooperate with the Guangzhou–Shenzhen Railway scientific and technological project test, Qishuyan Locomotive and Rolling Stock Factory trial-produced DF9-0002 locomotive with a structural speed of 160 km/h (99.4 mph). In March 1992, DF9-0002 set a speed record of 161 km/h (100.0 mph) on the National Railway Test Center, Beijing.
Gallery
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DF9 0001
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DF9 in Guangzhou
See also
References
Bibliography
- Su, Zhaozu (2015). 中國鐵道火車百科 I [China Railway Train Encyclopedia I] (in 中文). Renren Publishing Co., Ltd. ISBN 9789864610273. Search this book on
- Me, Zhang (9 August 2022). "Past Glories and Compromises". China Rail Stories. Retrieved 25 December 2024.
External links
- DF9型内燃机车 Trainnets.com.
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