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| length = {{convert|20.8|m|ftin|abbr=on}}
| length = {{convert|20.8|m|ftin|abbr=on}}
| locoweight = {{convert|120|t|abbr=on}}
| locoweight = {{convert|120|t|abbr=on}}
| uicclass = [[Co-Co locomotives|Co'Co']]
| uicclass = [[Co′Co′]]
| minimumcurve =
| minimumcurve =
| maxspeed = {{convert|140|km/h|abbr=on}}
| maxspeed = {{convert|140|km/h|abbr=on}}
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| buildmodel =
| buildmodel =
| totalproduction =
| totalproduction =
| aarwheels =
| gauge = {{track gauge|1435mm}}
| gauge = {{track gauge|1435mm}}
| trucks =
| trucks =
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__TOC__
__TOC__

==History==
==History==
[[File:NSB Di 4 Saltfjell.jpg|thumb|left|Di 4 hauling a passenger train over [[Saltfjellet]]]]
[[File:NSB Di 4 Saltfjell.jpg|thumb|left|Di 4 hauling a passenger train over [[Saltfjellet]]]]
During the 1950s and 1960s, NSB took delivery of thirty-five [[NSB Di 3|Di 3]] locomotives. The long term plan during the 1960s called for an additional orders of Di 3s during the early 1970s, but this was never carried through. Instead, the state railways started planning of a new class.<ref name=n54>Næss: 54</ref> Construction was conducted by [[Kassel]], Germany–based Henschel. The electric components were delivered by [[Brown, Boveri & Cie]] of [[Mannheim]], Germany, while the [[engine-generator]] was delivered by [[General Motors]].<ref name=johnsern>{{cite web |url=http://www.johnsern.com/materiell/di4/di4.html |title=Di 6 |publisher=Johnsern |language=Norwegian |accessdate=22 January 2012}}</ref> The Di 4 is technically similar to the Denmark's DSB Class ME.<ref name=jernbanenet>{{cite web |url=http://www.jernbane.net/norge/di/di4/index.asp |title=NSBs diesellokomotiver type Di. 4 |publisher=Jernbane.net |language=Norwegian |accessdate=22 January 2012 |archivedate=22 January 2012 |archiveurl=https://www.webcitation.org/64t4rW1gM}}</ref> Di 4 was the first NSB locomotive to have [[three-phase]] and [[asynchronous motor]]s,<ref>Hartmark: 22</ref> and the world's first asynchronous locomotive in revenue service.<ref>Hartmark: 24</ref> Henschel was also building the [[NSB El 17]]; the two types were planned to use the same [[traction motor]]s and [[rectifier]]s to increase [[commonality]]. This was however was discarded because the Di 4's components were too heavy for the El 17.<ref>Aspenberg: 119</ref>
During the 1950s and 1960s, NSB took delivery of thirty-five [[NSB Di 3|Di 3]] locomotives. The long term plan during the 1960s called for an additional orders of Di 3s during the early 1970s, but this was never carried through. Instead, the state railways started planning of a new class.{{sfn|Næss|page=54}} Construction was conducted by [[Kassel]], Germany–based Henschel. The electric components were delivered by [[Brown, Boveri & Cie]] of [[Mannheim]], Germany, while the [[engine-generator]] was delivered by [[General Motors]].<ref name=johnsern >{{cite web
|url=http://www.johnsern.com/materiell/di4/di4.html |title=Di 6 |publisher=Johnsern |language=Norwegian |accessdate=22 January 2012
}}</ref> The Di 4 is technically similar to the Denmark's DSB Class ME.<ref name=jernbanenet>{{cite web |url=http://www.jernbane.net/norge/di/di4/index.asp |title=NSBs diesellokomotiver type Di. 4 |publisher=Jernbane.net |language=Norwegian |accessdate=22 January 2012 |archivedate=22 January 2012 |archiveurl=https://www.webcitation.org/64t4rW1gM}}</ref> Di 4 was the first NSB locomotive to have [[three-phase]] and [[asynchronous motor]]s,{{sfn|Hartmark|page=22}} and the world's first asynchronous locomotive in revenue service.{{sfn|Hartmark|page=24}} Henschel was also building the [[NSB El 17]]; the two types were planned to use the same [[traction motor]]s and [[rectifier]]s to increase [[commonality]]. This was however was discarded because the Di 4's components were too heavy for the El 17.{{sfn|Aspenberg|page=119}}


Delivery of the five locomotives took place in 1981. It was often run in multiple with Di 3.<ref name=n54 /> Di 4 has a higher [[axle load]] than Di 3, so from the delivery they could not be used north of [[Mo i Rana]] on the Nordland Line.<ref name=n72>Næss: 72</ref> By 1987, NSB was planning on an additional order of the class, with delivery in 1989 and 1990, but the order was never placed.<ref name=n72 /> The proposed order would have consisted of six to ten units, which would have received a modified ventilation system and a more powerful engine.<ref name=johnsern /> Because of the time that had passed before a new order would have been placed, NSB was already looking for a more modern class, and placed an order for twelve [[NSB Di 6|Di 6]] in 1992.<ref name=n100>Næss: 100</ref> The Di 6 proved too unreliable, and was returned to the manufacturer.<ref name=n139>Næss: 139</ref> With the retirement of the Di 3 in 2001, Di 4 remains NSB's only revenue diesel locomotives.<ref name=sando>{{cite web |url=http://sando.co/index.php?aut=&nid=2&eng=1&vis=252 |last=Sando |first=Svein |title=Di 3 - The most important locomotive on the non-electrified railways of Norwegian State Railways (NSB) |accessdate=6 May 2013}}</ref>
Delivery of the five locomotives took place in 1981. It was often run in multiple with Di 3.{{sfn|Næss|page=54}} Di 4 has a higher [[axle load]] than Di 3, so from the delivery they could not be used north of [[Mo i Rana]] on the Nordland Line.{{sfn|Næss|page=72}} By 1987, NSB was planning on an additional order of the class, with delivery in 1989 and 1990, but the order was never placed.{{sfn|Næss|page=72}} The proposed order would have consisted of six to ten units, which would have received a modified ventilation system and a more powerful engine.<ref name=johnsern /> Because of the time that had passed before a new order would have been placed, NSB was already looking for a more modern class, and placed an order for twelve [[NSB Di 6|Di 6]] in 1992.<ref name=n100>Næss: 100</ref> The Di 6 proved too unreliable, and was returned to the manufacturer.{{sfn|Næss|page=139}} With the retirement of the Di 3 in 2001, Di 4 remains NSB's only revenue diesel locomotives.<ref name=sando>{{cite web
|url=http://sando.co/index.php?aut=&nid=2&eng=1&vis=252
|last=Sando |first=Svein |title=Di 3 - The most important locomotive on the non-electrified railways of Norwegian State Railways (NSB) |accessdate=6 May 2013
}}</ref>


==Specifications==
==Specifications==
[[File:Togmedvogner-29694-471.jpg|thumb|upright|Di 4 train in [[Malvik]]]]
[[File:Togmedvogner-29694-471.jpg|thumb|upright|Di 4 train in [[Malvik]]]]
The locomotives are equipped with a [[V16 engine|V16]] General Motors [[Electro-Motive Division]] [[EMD 645|16-645E]] [[prime mover (locomotive)|prime mover]] and an EMD AR7-D14B generator which offers a power output of {{convert|2450|kW}} at 900 [[revolutions per minute]]. The prime mover has a [[engine displacement|displacement]] of
The locomotives are equipped with a [[V16 engine|V16]] General Motors [[Electro-Motive Division]] [[EMD 645|16-645E]] [[prime mover (locomotive)|prime mover]] and an EMD AR7-D14B generator which offers a power output of {{convert|2450|kW}} at 900 [[revolutions per minute]]. The prime mover has a [[engine displacement|displacement]] of
{{convert|10.570|l|cuin}} per cylinder, a [[stroke (engine)|stroke]] of {{convert|254|mm|sp=us}} and a diameter of {{convert|230.2|mm|sp=us}}. This gives a starting [[tractive effort]] of {{convert|360|kN}}. The locomotives have a [[Co'Co']] wheel arrangement, with six [[Norsk Elektrisk & Brown Boveri]] QD 335N4A [[traction motor]]s.<ref name=n54 /><!--n54 cites kW--><ref name=johnsern /><ref name=jernbanenet />
{{convert|10.570|l|cuin}} per cylinder, a [[stroke (engine)|stroke]] of {{convert|254|mm|sp=us}} and a diameter of {{convert|230.2|mm|sp=us}}. This gives a starting [[tractive effort]] of {{convert|360|kN}}. The locomotives have a [[Co′Co′]] wheel arrangement, with six [[Norsk Elektrisk & Brown Boveri]] QD 335N4A [[traction motor]]s.{{sfn|Næss|page=54}}<!--n54 cites kW--><ref name=johnsern /><ref name=jernbanenet />


The [[wheelbase]] is {{convert|1.850|m|ftin|sp=us}} between the outer and center wheels and {{convert|2.000|m|ftin|sp=us}} between the center and inner wheels. The outer axle distance is {{convert|15.600|m|ftin|sp=us}}. The axle load is {{convert|19.1|t}}. The locomotives are {{convert|20.800|m|ftin|sp=us}} long and {{convert|4.350|m|ftin|sp=us}} tall.<ref name=jernbanenet /> The wheel diameter is {{convert|1,100|mm|in|sp=us}} when new.<ref name=johnsern />
The [[wheelbase]] is {{convert|1.850|m|ftin|sp=us}} between the outer and center wheels and {{convert|2.000|m|ftin|sp=us}} between the center and inner wheels. The outer axle distance is {{convert|15.600|m|ftin|sp=us}}. The axle load is {{convert|19.1|t}}. The locomotives are {{convert|20.800|m|ftin|sp=us}} long and {{convert|4.350|m|ftin|sp=us}} tall.<ref name=jernbanenet /> The wheel diameter is {{convert|1,100|mm|in|sp=us}} when new.<ref name=johnsern />
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==References==
==References==
{{commons category|NSB Di 4}}
{{commons category|NSB Di 4}}
⚫
{{reflist}}
;Bibliography
;Bibliography
* {{cite book
* {{cite book |first=Nils Carl |last=Aspenberg |authorlink=Nils Carl Aspenberg |title=Elektrolok i Norge |year=2001 |publisher=Baneforlaget |location=Oslo |language=Norwegian |isbn=82-91448-42-6}}
* {{cite book |title=Norske sivilingeniørers forening jernbaneingeniørenes avdeling: 1891–1991 |last=Hartmark |first=Håkon |last2=Sørlie |first2=Per Harman |last3=Andresen |first3=Jens Kristian |year=1991 |publisher=Norske sivilingeniørers forening |location=Oslo |language=Norwegian |url=http://urn.nb.no/URN:NBN:no-nb_digibok_2007103104029}}
|first=Nils Carl |last=Aspenberg |authorlink=Nils Carl Aspenberg |title=Elektrolok i Norge |year=2001 |publisher=Baneforlaget |location=Oslo |language=Norwegian |isbn=82-91448-42-6
|ref={{harvid|Aspenberg}}
}}
* {{cite book
|title=Norske sivilingeniørers forening jernbaneingeniørenes avdeling: 1891–1991 |last=Hartmark |first=Håkon |last2=Sørlie |first2=Per Harman |last3=Andresen |first3=Jens Kristian |year=1991 |publisher=Norske sivilingeniørers forening |location=Oslo |language=Norwegian |url=http://urn.nb.no/URN:NBN:no-nb_digibok_2007103104029
|ref={{harvid|Hartmark}}
⚫
*{{cite book |title=Di 3: Billedboken om en loklegende |last=Næss |first=Ståle |publisher=BSN Forlag |year=1999 |language=Norwegian |url=http://urn.nb.no/URN:NBN:no-nb_digibok_2010042103014}}
}}

⚫
*{{cite book |title=Di 3: Billedboken om en loklegende |last=Næss |first=Ståle |publisher=BSN Forlag |year=1999 |language=Norwegian |url=http://urn.nb.no/URN:NBN:no-nb_digibok_2010042103014
;Notes
|ref={{harvid|Næss}}
⚫
{{reflist}}
}}


== External links ==
== External links ==
*[http://trainspo.com/class/3240/ NSB Di 4 profile] on Trainspo
*[http://trainspo.com/class/3240/ NSB Di 4 profile] on Trainspo



{{NSB stock}}
{{NSB stock}}
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[[Category:Henschel locomotives]]
[[Category:Henschel locomotives]]
[[Category:Railway locomotives introduced in 1981]]
[[Category:Railway locomotives introduced in 1981]]
[[Category:Co-Co locomotives]]
[[Category:Co′Co′ locomotives]]
[[Category:Nordland Line]]
[[Category:Nordland Line]]
[[Category:Standard gauge locomotives of Norway]]
[[Category:Standard gauge locomotives of Norway]]

Revision as of 15:28, 18 April 2018

NSB Di 4
Type and origin
Power typeDiesel-electric
BuilderHenschel
Build date1980
Specifications
Configuration:
​
 • UICCo′Co′
Gauge1,435 mm (4 ft 8+1⁄2 in)
Wheel diameter1,100 mm (3 ft 7 in)
Wheelbase1,850 mm (6 ft 1 in)+2,000 mm (6 ft 7 in) (bogies
15.600 m (51 ft 2.2 in) (between outer axles)
Length20.8 m (68 ft 3 in)
Height4.35 m (14 ft 3 in)
Axle load20 t (20 long tons; 22 short tons)
Loco weight120 t (120 long tons; 130 short tons)
Prime moverEMD 16-645E
Traction motorsNEBB QD 335N4A
CylindersV16
Cylinder size230.2 mm × 254 mm (9.06 in × 10.00 in)
bore x stroke
TransmissionElectric
Performance figures
Maximum speed140 km/h (87 mph)
Power output2,450 kW (3,290 hp) @ 900 RPM
Tractive effort360 kN (81,000 lbf)
Career
OperatorsNorwegian State Railways
Number in class5
Numbers4.651 – 4.655

NSB Di 4 is a class of five diesel-electric locomotives built by Henschel for the Norwegian State Railways (NSB). Delivered in 1981, the class is used to haul passenger trains on the Nordland Line and are since 2001 the only revenue diesel locomotives used by NSB. The locomotives had electric components from Brown, Boveri & Cie and a General Motors Electro-Motive Division 16-645E prime mover. This gives a power output of 2,450 kilowatts (3,290 hp) and a starting tractive effort of 360 kilonewtons (81,000 lbf).

The locomotives were ordered in the late 1970s as a supplement and later replacement of the Di 3. The class is technically similar to Denmark's DSB Class ME; it was planned to have commonalities with NSB's electric El 17 locomotives, but this was scrapped. The Di 4 was world's first asynchronous locomotive in revenue service. A second batch was planned delivered later in the 1980s, but the order was never placed.

History

Di 4 hauling a passenger train over Saltfjellet

During the 1950s and 1960s, NSB took delivery of thirty-five Di 3 locomotives. The long term plan during the 1960s called for an additional orders of Di 3s during the early 1970s, but this was never carried through. Instead, the state railways started planning of a new class.[1] Construction was conducted by Kassel, Germany–based Henschel. The electric components were delivered by Brown, Boveri & Cie of Mannheim, Germany, while the engine-generator was delivered by General Motors.[2] The Di 4 is technically similar to the Denmark's DSB Class ME.[3] Di 4 was the first NSB locomotive to have three-phase and asynchronous motors,[4] and the world's first asynchronous locomotive in revenue service.[5] Henschel was also building the NSB El 17; the two types were planned to use the same traction motors and rectifiers to increase commonality. This was however was discarded because the Di 4's components were too heavy for the El 17.[6]

Delivery of the five locomotives took place in 1981. It was often run in multiple with Di 3.[1] Di 4 has a higher axle load than Di 3, so from the delivery they could not be used north of Mo i Rana on the Nordland Line.[7] By 1987, NSB was planning on an additional order of the class, with delivery in 1989 and 1990, but the order was never placed.[7] The proposed order would have consisted of six to ten units, which would have received a modified ventilation system and a more powerful engine.[2] Because of the time that had passed before a new order would have been placed, NSB was already looking for a more modern class, and placed an order for twelve Di 6 in 1992.[8] The Di 6 proved too unreliable, and was returned to the manufacturer.[9] With the retirement of the Di 3 in 2001, Di 4 remains NSB's only revenue diesel locomotives.[10]

Specifications

Di 4 train in Malvik

The locomotives are equipped with a V16 General Motors Electro-Motive Division 16-645E prime mover and an EMD AR7-D14B generator which offers a power output of 2,450 kilowatts (3,290 hp) at 900 revolutions per minute. The prime mover has a displacement of 10.570 litres (645.0 cu in) per cylinder, a stroke of 254 millimeters (10.0 in) and a diameter of 230.2 millimeters (9.06 in). This gives a starting tractive effort of 360 kilonewtons (81,000 lbf). The locomotives have a Co′Co′ wheel arrangement, with six Norsk Elektrisk & Brown Boveri QD 335N4A traction motors.[1][2][3]

The wheelbase is 1.850 meters (6 ft 0.8 in) between the outer and center wheels and 2.000 meters (6 ft 6.7 in) between the center and inner wheels. The outer axle distance is 15.600 meters (51 ft 2.2 in). The axle load is 19.1 tonnes (18.8 long tons; 21.1 short tons). The locomotives are 20.800 meters (68 ft 2.9 in) long and 4.350 meters (14 ft 3.3 in) tall.[3] The wheel diameter is 1,100 millimeters (43 in) when new.[2]

References

Wikimedia Commons has media related to NSB Di 4.
  1. ^ a b c Næss, p. 54.
  2. ^ a b c d "Di 6" (in Norwegian). Johnsern. Retrieved 22 January 2012.
  3. ^ a b c "NSBs diesellokomotiver type Di. 4" (in Norwegian). Jernbane.net. Archived from the original on 22 January 2012. Retrieved 22 January 2012.
  4. ^ Hartmark, p. 22.
  5. ^ Hartmark, p. 24.
  6. ^ Aspenberg, p. 119.
  7. ^ a b Næss, p. 72.
  8. ^ Næss: 100
  9. ^ Næss, p. 139.
  10. ^ Sando, Svein. "Di 3 - The most important locomotive on the non-electrified railways of Norwegian State Railways (NSB)". Retrieved 6 May 2013.
Bibliography
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