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Draft:China Railways DF9

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Dongfeng 9
东风9
DF9 0001
Type and origin
Power typeDiesel-electric
BuilderQishuyan Locomotive and Rolling Stock Works
Build date1990-1991
Total produced2
Specifications
Configuration:
 • UICCo′Co′
Gauge1,435 mm (4 ft 8+12 in)
Length20,150 mm (66 ft 1 in)
Width3,288 mm (10 ft 9.4 in)
Height4,736 mm (15 ft 6.5 in)
Axle load23 t (51,000 lb)
Loco weight138 t (304,000 lb)
Fuel typeDiesel
Fuel capacity6,500 L (1,700 US gal)
Water cap.1,200 L (320 US gal)
Prime mover16V280ZJA
GeneratorTQFR-3000C-1
Traction motorsZD106
Transmissionelectric (AC/DC)
Performance figures
Maximum speed140 km/h (87 mph)(0001)
160 km/h (99 mph)(0002)
Power output3,040 kW (4,080 hp)
Tractive effort:
 • Starting245 kN (55,000 lbf)
 • Continuous179.1 kN (40,300 lbf)(0001)
161.3 kN (36,300 lbf)(0002)
Career
OperatorsChina China Railway
Scrapped2011

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 a 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

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It belongs to the China's Eighth Five-Year Plan one of the key national science and technology projects, it was not only the second locomotive equipped with a 280/285 series diesel engine after the DF8 diesel locomotive, it 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).

A DF9-0001 with a construction 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.

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See also

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References

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