The Eurorunner family of locomotives are a series of medium- to high-power diesel-electric locomotives built by

Siemens Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', '' ...

for the European market. Introduced from 2002 onwards, they share design characteristics with the successful Eurosprinter range of electric locomotives, also built by Siemens. The main initial order for these locomotives was for 100 of the four-axle ER20 for the Austrian Federal Railways (ÖBB) and designated ÖBB type 2016, and commonly called Hercules; further smaller orders from smaller railway companies have also been fulfilled. Later six-axle versions ER20CF were produced for

Lithuanian Railways Lithuanian Railways ( lt, Lietuvos geležinkeliai), abbreviated LTG, is the national state-owned railway company of Lithuania. It operates most of the railway network in the country. During 2020, Lithuanian Railways transported 3.34 m ...

. A higher-power version ER30 is also offered but has not resulted in any orders as of 2010. Production of the Eurorunner ceased by 2012, replaced by

Siemens Vectron The Vectron is a locomotive series made by Siemens Mobility, introduced at the 2010 InnoTrans trade fair in four prototype versions: diesel, multi-system, and both AC and DC electric power. The diesel version has been replaced in 2018 by a dua ...

diesel-engined versions.

Technical

The locomotive is designed to be made of as few parts as possible, and is of modular construction, with separate components (engine, electronics etc.) kept in separately fabricated units and are designed to be easily replaceable.ER 20 BU/BF technical data sheet - includes block diagrams, locomotive schematic image, tractive effort and braking curves etc. Siemens.dk
/ref> Marketing by Siemens has heavily emphasised the locomotive's energy-saving characteristics, as well as the technology used to reduce particulate emissions. The locomotives have a supercharged 16-cylinder diesel engine of the MTU 4000 series developing 2,000 kW of power which drive a three-phase brushless alternator. At

idle Idle generally refers to idleness, a lack of motion or energy. Idle or ''idling'', may also refer to: Technology * Idle (engine), engine running without load ** Idle speed * Idle (CPU), CPU non-utilisation or low-priority mode ** Synchronous ...

8 of the 16 cylinders can be turned off, reducing fuel consumption and emissions. The three-phase electrical supply is rectified to DC to supply a pulse-width modulator, which in turn generates a three-phase electrical supply to the traction motors (which are of the induction type) – the four traction motors are connected in parallel. Electrical taps from the main DC power supply also provide power to other electronically controlled power supplies, including those that power the cooling fans (also known as 'blowers') at 440 V 3-phase 60 Hz. The power supply for passenger operations (coach heating, lighting etc.) is optional and is located separately under the main frame whereas the rest of the electronic equipment is mounted in the body of the vehicle. In addition the electrodynamic brakes can charge both a battery pack, as well as high capacity capacitors – meaning that energy absorbed on deceleration can be reused later on. This feature saves emissions and fuel consumptionLocomotives from Siemens. A clean solution. Siemens.dk p. 11
/ref> – if the batteries and capacitors are full, a roof-mounted set of resistors provides the remainder or additional rheostatic braking. The maximum electrical braking effort is . For additional braking a pneumatic braking system is included. The locomotives are equipped for Push-Pull operation (with Driving van trailer for instance) and for multiple-unit operation (see Multiple-unit train control.)

Eurorunner ER20 C

The six-axled locomotives have a number of changes in addition to the change of bogie type: both mass, tractive effort and braking effort are increased. The modularity concept used in the 4-axle versions remains unchanged. One notable difference between the two is that the ER20 C models have one pulse-width modulator (electronic power supply: generic term 'inverter') per bogie (i.e. 2 ), whereas the ER 20B models have only one pulse-width modulator in total. In addition the arrangement of modular components is changed from the Bo'Bo' versions. This model also sports a water closet.

Eurorunner ER30

Siemens technical documentation mentions an ER30, which appears to be a variant of the ER20 CF model, with the possibility of a higher operating speed – it is described as being suitable for passenger and freight operations.

History and operators

The initial order of the Eurorunner was of 100 units for Austrian Federal Railways ÖBB as locomotive type 2016. Further locomotives were purchased by various companies:EuroRunner classic Railcolor.net
/ref> KCR ER20 8002

Kowloon-Canton Railway Corporation of Hong Kong were an early customer, ordering five locomotives in 2001 for use hauling freight services on the Kowloon-Canton Railway.

Nord-Ostsee-Bahn Nord-Ostsee-Bahn or NOB is a railway company which operates in Schleswig-Holstein, Germany. Based in Kiel, the company was established in 2000 and is owned by Transdev. The company's main route is the Marsh Railway between Hamburg and Wester ...

also operate ER20s as 'DE 2000'. These original locomotives were available in a passenger version; the equipment (such as electric train heat etc.) required for passenger operation was carried under the locomotives frame between the bogies and necessitated a reduction in the size of the fuel tank. Alternatively, it may be said that the freight version has a larger fuel tank. Locomotives based in Germany have been called 'Class 253', but that code has been given to the

Vossloh G2000 The G 2000 BB is a four axle heavy shunting and mainline locomotive, designed by German company Vossloh and built at the former MaK plant in Kiel. At the time of its introduction in 2000 it was the most powerful hydraulic transmission locomotive ...

, and the locomotives now answer to the name 'Class 223'; in Austria the designation is often 'Class 2016' since the original Austrian order for ÖBB had that number, the name 'Hercules' is also commonly used for this class since the original Austrian locomotive carried that name. In 2007 Siemens announced variants available as a six-axle Co'Co' locomotive. The first order for this type came from

(Lietuvos Geležinkeliai or LG) for 34 of a gauge freight-specific version; the new variant was given the reporting name ER 20 CF Higher-powered versions are also offered, designated ER30. The passenger version is labelled ER 20 CU (U is for universal), and retrospectively the two-axle variants have been relabelled ER 20 BU or ER 20 BF for the universal (passenger) and freight versions respectively. (Originally the Bo'Bo' freight version reported as ER 20 F)

References

Literature

External links

Eurorunner @ Trainspo
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