China Railways DFH shunting locomotives
DFH2 , DFH5 , DFH6 , DFH7 , DFH21 东方红2、东方红5、东方红6、东方红7、东方红21 | |||||||||||||||
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The China Railways "Dongfang Hong" diesel-hydraulic locomotive classes DFH2, DFH5, DFH6 and DFH7 built from the 1970s to 1990s were all used as shunters on the Chinese railway network.
The use of diesel-hydraulic shunters has fallen out of favour on the Chinese rail network, with diesel-electric locomotives being used, however diesel-hydraulic machines continued to be produced for industrial railways - mainly the classes.[2]
The DFH21 class is a meter gauge version of the DFH2, and was used on the Yunnan–Vietnam Railway for both passenger and freight services; the same machines are used on the Vietnam Railways where they are known as the D10H.
China Railways standard gauge[]
DFH2[]
The DHF2 was originally designed by Sifang locomotive works in 1966 as a passenger locomotive of rated power 1,470 kW (1,970 hp), the design did not enter mass production, but in 1973 the design was changed at Ziyang locomotive works to a 650 kW (870 hp) power locomotive of top speed 62 km/h (39 mph).[1][img 1]
The mass was 60 t (59.1 long tons; 66.1 short tons) and starting tractive effort 192 kN (43,000 lbf). The locomotive used a 12V180ZL engine and SF2010 transmission.[4]
DFH5[]
In comparison to the DFH2 type a number of changes were made for the DFH5; a twin speed transmission allowing a higher topspeed when running without a heavy load was included, the mass was increased to improve traction.[3]
The DFH5 class was produced in large quantities, the engine was a 12V180ZJ and transmission ZJ2011, producing 278 kN (62,000 lbf) of tractive effort with a mass of 86 t (84.6 long tons; 94.8 short tons) and with a top speed of 40 km/h (25 mph). A higher speed was available with a limit of 80 km/h (50 mph) and tractive effort reduced to approximately half.[2][img 2]
Variants were produced introduced 1985, with modififactions to improve reliability and performance; the DFH5B and DFH5C, in both the rated power was increased to 920 kW (1,230 hp), and the mass by 4 t (3.9 long tons; 4.4 short tons). DFH5C was produced for operations in metalworks.[3]
DFH6[]
One example was produced for shunting in the Chinese port of Huangpu District, Shanghai.[1]
DFH7[]
Four units produced for shunting in mines and industrial environments.[1]
Metre gauge[]
DFH21[]
Locomotives similar in design to the DFH2 type but built to meter gauge and used as universal locomotives.[1][5] The locomotives were used on the Kunming metre gauge railway, including passenger services.[6][img 3]
As of 2012, Kunming rail fans report that DFH21 locos are still used to haul a few passenger trains a day along the metre gauge tracks from Kunming North Railway Station to several nearby stations. In 2014 they still drive these trains.[7]
30 of the locomotives are also used by Vietnam Railways where they are known as the D10H,[8] in 2005 the Vietnam railways had 20 units operational.[9] In 2009 ten of the engines had Caterpillar Inc. 3512B engines fitted as replacements.[10]
Preserved locomotives[]
DFH2 0008 and DFH5 0001 are both preserved at the Beijing China Railway Museum.[11]
References[]
- ^ Jump up to: a b c d e f g h i j k l m n o p q r s t u v w 东方红型内燃机车 , The East is Red Diesel locomotive , www.kepu.net.cn
- ^ Jump up to: a b c d DFH5 东方红5 Archived 2011-01-08 at the Wayback Machine , www.railwaysofchina.com
- ^ Jump up to: a b c 海子铁路网社区 » 中国内燃(干线) » 东方红5型(DFH5)内燃机车 , (DF5 locomotive) , technical drawing and description , bbs.hasea.com
- ^ 中国铁路东方红2型(DFH2)内燃机车 , China Railway "Dongfang Hong" 2 (DFH2) Diesel locomotive , www.hudong.com
- ^ 中国機関車大全 液体式ディーゼル機関車編 : 東方紅21型(DFH21) Archived 2012-01-18 at the Wayback Machine Chinese locomotives : diesel hydraulics , section "DFH21" , www.chinarailway.jp
- ^ South China March 2005 , section "Kunming meter gauge" , Peter Patt, Jan Schirling , 2005 , www.sy-country.co.uk
- ^ 滇越铁路徒步第一程(昆明——宜良) (A walk along the Kunming-Vietnam Railway. Part 1: Kunming-Chenggong)
- ^ Danh sách đầu máy D10H tại Việt nam , Info on D10H in Vietnam, daumaytoaxe.com
- ^ Vietnam Railways: Rolling Stock, Number of locomotives (of the year 2005), archived from the original on 13 January 2011
- ^ Vòng quanh các xí nghiệp đầu máy ở VN , Tour of railway factories in Vietnam , p.16 , daumaytoaxe.com
- ^ Preserved Locomotives Archived 2011-07-15 at the Wayback Machine , www.railwaysofchina.com
Images[]
- ^ 新闻资料:东方红型内燃机车 Archived 2011-07-23 at the Wayback Machine , Dongfang Hong (The east is red) types 2 and 3 museum images , news.workercn.cn
- ^ 新闻资料:东方红型内燃机车 Archived 2011-07-23 at the Wayback Machine , Dongfang Hong (The east is red) type 5 , museum images and technical details , news.workercn.cn
- ^ DFH21 Images via www.flickr.com
External links[]
Wikimedia Commons has media related to China Railways DFH2. |
Wikimedia Commons has media related to China Railways DFH5. |
Wikimedia Commons has media related to China Railways DFH21. |
- ☆中国鉄道博物館 車両図録☆ Railway museum Beijing, diesel hydraulic gallery, www.geocities.jp
- Diesel locomotives of China
- B-B locomotives
- Standard gauge locomotives of China
- Metre gauge diesel locomotives