The China Railways DFH1 was a type of 4-axle B'B' single-cab diesel-hydraulic locomotive used on mainline passenger services; the DFH3 was a later development of a similar design but with two driving cabs.
The first prototype unit (NY1) (neiran yeli chuandong meaning diesel-hydraulic transmission)[4] was produced in 1959 at Sifang locomotive works, and given the name 'Weixing'.
내연923, ex-China Railways DFH3 in service in North Korea.
Wikimedia Commons has media related to China Railways DFH3.
Locomotive design was similar to German diesel-hydraulic machines such as the DB Class V 200 - the machine had a pair of high-speed diesel engines, each driving a separate hydraulic torque converter based transmission resulting in low mass compared to contemporary diesel-electric machines.
Series production began in 1964. The locomotive was used for passenger trains.[1] The locomotives could be worked in multiple, and were often used in this way, with a cab at each end. They operated on the Beijing Shenyang passenger trains.[5]
China Railways DFH3
The DFH3 shares the same twin engine and twin hydraulic transmission as the DFH1 but is a two-cab design.
The production of the DFH3 follows on from the DFH1. The class were used on passenger trains in northeast China, by 2010 most had been displaced, and some are believed to being used in industrial service.[6]
North Korea
Between 2000 and 2002, thirty second-hand DFH3 were imported by the Korean State Railway for operation in North Korea,[7] numbered 내연901 to 내연930, although 내연903 is a Beijing class locomotive.[8] Many are still in their original Chinese livery of blue and white, but some have been repainted into several different liveries, including the standard North Korean light blue over dark green, along with non-standard schemes of white over green, green with a yellow stripe, and green with a white stripe.
China Railways DFH4
The Qishuyan Ziyang Diesel locomotive works manufactured six locomotives of type DFH4 between 1969 and 1981. The first unit was produced in 1969 with an overall 5,000 hp (3,700 kW) machine with twin engine and hydraulic transmission.[1] Two 4,500 hp (3,400 kW) machines were produced in 1971 and 1974. Between 1975 and 1981 the Ziyang plant investigated the manufacture of further locomotives using the 12V200ZJ engine.[2]
One unit, locomotive number DFH1 4290 is an exhibit at the Beijing China Railway Museum, all other units have been destroyed[9] except DFH1 4222 which is believed to be at the locomotive museum in Shenyang.[10] The Beijing museum also stores DFH3 0009.[10]
^东方红1型机车安家铁博 Archived 2013-04-07 at archive.today (information on the preservation of DFH1 4290), www.tieliu.com.cn
^ abPreserved Locomotives 2011-07-15 at the Wayback Machine, www.railwaysofchina.com
December 28, 2022
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The China Railways DFH1 was a type of 4 axle B B single cab diesel hydraulic locomotive used on mainline passenger services the DFH3 was a later development of a similar design but with two driving cabs DFH1 DFH3 DFH4DFH3 0009 at Beijing Railway Museum 2010 Type and originPower typeDiesel hydraulicBuilderDFH1 SifangDFH3 SifangDFH4 Sifang Ziyang Qishuyan ChinaBuild dateDFH1 1959 1 1964 1972 series DFH3 1976 87 1 DFH4 1969 81 2 Total producedDFH1 109 1 DFH3 268DFH4 6 2 SpecificationsConfiguration UICDFH1 DFH3 B B DFH4 6 axleGauge1 435 mm 4 ft 8 1 2 in Wheel diameterDF1 DF3 1 050 mm 41 34 in DF4 Minimum curveDF1 DF3 145 m 476 ft DF4 LengthDFH1 16 550 m 54 ft 3 6 in 1 DFH3 17 970 m 58 ft 11 5 in 1 WidthDFH1 3 106 m 10 ft 2 28 in DFH3 3 279 m 10 ft 9 09 in HeightDFH1 4 516 m 14 ft 9 80 in DFH3 4 450 m 14 ft 7 20 in Loco weightDFH1 84 t 83 long tons 93 short tons DFH3 92tPrime moverDFH1 2 of 12V175Z 12V180Z or 12V175ZLDFH3 12V180JZDFH4 2 of 12V200ZL later 12V200ZJ 2 TransmissionDFH1 hydraulic 12175Z 2 of 3 Performance figuresMaximum speedDFH1 140 km h 87 mph 1 120 km h 75 mph 1 DFH3 120 km h 75 mph 1 Power outputDFH1 1 060 kW 1 420 hp 1 1 220 kW 1 640 hp 1 DFH3 2 730 kW 980 hp 2 820 kW 1 100 hp 1 DFH4 3 308 kW 4 436 hp 1 Tractive effortDFH1250 kN 56 000 lbf 270 kN 61 000 lbf maximum DFH3 271 kN 61 000 lbf maximum CareerOperatorsChina Railway Korean State RailwayFirst 73 units Final 36 units NY1 prototype Two units produced in 1986 of higher power First units produced were of higher power 2 The China Railways DFH4 was a 6 axle high powered freight and passenger locomotive it did not reach mass production Contents 1 China Railways DFH1 2 China Railways DFH3 2 1 North Korea 3 China Railways DFH4 4 See also 5 Preservation 6 ReferencesChina Railways DFH1 Edit Prototype NY1 Weixing The first prototype unit NY1 neiran yeli chuandong meaning diesel hydraulic transmission 4 was produced in 1959 at Sifang locomotive works and given the name Weixing 내연923 ex China Railways DFH3 in service in North Korea Wikimedia Commons has media related to China Railways DFH3 A DFH3 in standard Kukch ŏl livery at Namyang Station on the Hambuk Line Locomotive design was similar to German diesel hydraulic machines such as the DB Class V 200 the machine had a pair of high speed diesel engines each driving a separate hydraulic torque converter based transmission resulting in low mass compared to contemporary diesel electric machines Series production began in 1964 The locomotive was used for passenger trains 1 The locomotives could be worked in multiple and were often used in this way with a cab at each end They operated on the Beijing Shenyang passenger trains 5 China Railways DFH3 EditThe DFH3 shares the same twin engine and twin hydraulic transmission as the DFH1 but is a two cab design The production of the DFH3 follows on from the DFH1 The class were used on passenger trains in northeast China by 2010 most had been displaced and some are believed to being used in industrial service 6 North Korea Edit Between 2000 and 2002 thirty second hand DFH3 were imported by the Korean State Railway for operation in North Korea 7 numbered 내연901 to 내연930 although 내연903 is a Beijing class locomotive 8 Many are still in their original Chinese livery of blue and white but some have been repainted into several different liveries including the standard North Korean light blue over dark green along with non standard schemes of white over green green with a yellow stripe and green with a white stripe China Railways DFH4 EditThe Qishuyan Ziyang Diesel locomotive works manufactured six locomotives of type DFH4 between 1969 and 1981 The first unit was produced in 1969 with an overall 5 000 hp 3 700 kW machine with twin engine and hydraulic transmission 1 Two 4 500 hp 3 400 kW machines were produced in 1971 and 1974 Between 1975 and 1981 the Ziyang plant investigated the manufacture of further locomotives using the 12V200ZJ engine 2 See also EditChina Railways DFH shunting locomotives Contemporary Chinese diesel hydraulic locomotives used primarily for shuntingPreservation EditOne unit locomotive number DFH1 4290 is an exhibit at the Beijing China Railway Museum all other units have been destroyed 9 except DFH1 4222 which is believed to be at the locomotive museum in Shenyang 10 The Beijing museum also stores DFH3 0009 10 References Edit a b c d e f g h i j k l m n 东方红型内燃机车 DFH Diesel locomotives kepu net cn a b c d e 东方红4型 DFH4 内燃机车 Donfang Hong DFH4 Diesel locomotive www fjsen com 新闻资料 东方红型内燃机车 Archived 2011 07 23 at the Wayback Machine DFH locomotive news workercn cn ND and NY prefixes Archived 2009 10 03 at the Wayback Machine www railwaysofchina com DFH1 Class B B Diesel Hydraulics www railography co uk DFH3 Class B B Diesel Hydraulics www railography co uk 朝鲜铁路机车车辆概况一览 Kokubu Hayato 将軍様の鉄道 Shōgun sama no Tetsudō ISBN 978 4 10 303731 6 东方红1型机车安家铁博 Archived 2013 04 07 at archive today information on the preservation of DFH1 4290 www tieliu com cn a b Preserved Locomotives Archived 2011 07 15 at the Wayback Machine www railwaysofchina com Retrieved from https en wikipedia org w index php title China Railways DFH mainline locomotives amp oldid 1098672241, wikipedia, wiki, book, books, library,
