China Railways DF8

This article is about the Chinese locomotive. For other uses, see Dongfeng (disambiguation).

DF8 东风8
The first generation of DF8 family
Power type	Diesel-electric
Model	DF8B
Build date	1997 -
Total produced	700+
AAR wheel arr.	C-C
Gauge	1435 mm
Length	22000 mm
Width	3304 mm
Height	4736 mm
Engine type	16V280ZJA
Cylinders	16
Cylinder size	280 x 285 mm
Transmission	electric (AC-DC)
Top speed	100 km/h
Power output	3680 kW
Tractive effort	480 kN starting 340 kN continuous
Locomotive brakes	straight air and dynamic
Locale	People's Republic of China

DF8B at Fengtai Depot, Beijing

The DF8 (Chinese: 东风8; translation: East Wind) is a type of diesel locomotive used in the People's Republic of China. It was in production from 1984 until the middle of the 1990s, with batch production starting in 1989. The revised DF8B is still in production today. DF8 are almost exclusively used for freight services.

Models

DF8

The first generation DF8 was powered by the original 3310 kW 16V280ZJ engine.

DF8B

The second generation DF8, the DF8B, is powered by an updated 16V280ZJA engine with 3680 kW. Production started in 1997 and lasts until today. Qishuyan, Dalian and Ziyang manufacture 0, 3000 and 5000 series of DF8B respectively.

12 DF8Bs were exported to Venezuela and are called DF8Bven, however they are identical to the domestically used DF8B. [1]

Ziyang made a special DF8B which was originally intended to be used on the Qingzang line and was numbered DF8DJ-0001. The special model is powered by a Caterpillar 3516 engine (6,500 hp) and six AC traction motors. The Chinese Ministry of Railways rejected the proposal and it was renamed DF8B-5672. It's now running on Xiyan Line in Shaanxi.

DF8BJ

The DF8BJ, which uses the 16V280ZJG engine (4,000 kW), GTO VVVF inverter and AC traction motors, is produced by Ziyang [2]. It was designed for Qingzang Railway. Before arrival of GE locomotives for Qingzang, it was named NJ2.

DF8CJ

The DF8CJ version is produced by CSR and has a 16V280ZJB engine (maximum power 4.4MW) and AC inverter traction drive.^[1]

DF8DJ

The DF8DJ version has a CAT 3616 engine of rated power 4.8MW and AC asynchronous traction motors.^[2]

Manufacturers

The original DF8 was manufactured in Qishuyan by CSR Qishuyan Locomotive and Rollingstock Co.,Ltd., the DF8B is also manufactured in Qishuyan by CSR Qishuyan Locomotive and Rollingstock Co.,Ltd. and in Ziyang by CSR Ziyang Locomotive Works.

References

1. ^ 东风8CJ型交流传动重载货运内燃机车 (Dongfeng 8CJ Heavy Freight Diesel Locomotive AC drive) , www.csrgc.com.cn
2. ^ 东风8DJ型大功率交流传动货运内燃机车 (Dongfeng 8DJ High Power AC Drive Freight Diesel Locomotive) , www.zyloco.com

• "Ziyang Locomotive Works". http://www.zyloco.com/english/cpsj/df8b.htm. 
• "Railways of China". http://www.railwaysofchina.com/df8.htm. 
• "Railography". http://www.railography.co.uk/info/cn_diesels/p09.htm.