The Beijing (Chinese: 北京; pinyin: Běijīng), mostly referred to as BJ, is a diesel-hydraulic locomotive used in the People's Republic of China. It is named after the capital city of China, Beijing.^[1]

This article relies largely or entirely on a single source. (January 2017)

Quick Facts Beijing 北京, Type and origin ...

Beijing 北京
BJ3248 in Nanpiao, Liaoning
Type and origin Power type Diesel-hydraulic Builder February 7th Works  China Model Standard Build date 1970 - 1991 Total produced 346 (standard) 12 (24) (2-unit) 16 (port)
Specifications Configuration: ​  • UIC B-B Gauge 4 ft 8+1⁄2 in (1,435 mm) 1,520 mm (4 ft 11+27⁄32 in) Wheel diameter 1,050 mm (41 in) Minimum curve 125 m (410 ft 1 in) Length 15,045 mm (49 ft 4.3 in) Width 3,285 mm (10 ft 9.3 in) Height 4,512 mm (14 ft 9.6 in) Axle load 23 t (51,000 lb) Loco weight 92 t (203,000 lb) Fuel capacity 5,500 L (1,500 US gal) Water cap. 1,200 L (320 US gal) Prime mover 12V240ZJA RPM range 1100 rpm Engine type V12 diesel Cylinders 12 Cylinder size 240 mm × 260 mm (9.4 in × 10.2 in) Transmission Hydraulic
Performance figures Maximum speed 120 km/h (75 mph) Power output 1,990 kW (2,670 hp) Tractive effort 227 kN (51,000 lbf) (starting) 163 kN (37,000 lbf) (continuous)
Career Operators China Railway Korean State Railway Numbers BJ 1001 - 1012 (port, std g) BJ 1101 - 1104 (port, brd g) BJ 2001A/B - 2012A/B (2-unit) BJ 3001 - 3346 (standard) 내연301 - 내연333

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BJ were made in two different versions, a standard version and a kou'an (port) version. China Railways DF7D, a diesel electric locomotive based on DF7B, has a similar appearance to the Beijing locomotive.

From 2002 the Korean State Railway has received a number of BJ class locomotives second-hand from China. They are used mostly for heavy shunting and on local freight trains around P'yŏngyang.^[2] At least 33 have been delivered, numbered in the 내연301 - 내연333 series (내연 = Naeyŏn, "internal combustion"); most are still painted in their original Chinese blue livery, but a few have been repainted into the standard North Korean scheme of light blue over dark green, and at least one, 내연310, is painted in a scheme identical to the Chinese green livery used on Chinese DF4 locomotives.

• BJ at Beijing Railway Station
• BJ1002 at Manzhouli Railway Station
• BJ3001 at Beijing Erqi Locomotive Factory
• BJ3003 at the China Railway Museum
• BJ2007 at Shidu station in Fangshan District, Beijing