Two-power locomotive

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FL9 the NYNH & HR for Diesel drive and electrical drive means busbar 1968
Series B 82500 SNCF dual-motor multiple unit in Mulhouse-Ville station

A two-motor locomotive or a two-motor multiple unit is a motor vehicle that can be operated with two different energy sources. Mostly these are electrically powered vehicles whose traction current can either be taken from an overhead contact line or conductor rail or alternatively generated on the vehicle itself with a diesel engine that drives a generator ( diesel-electric drive ). Thanks to this technology, the vehicles can be used flexibly, since as vehicles with pantographs they can on the one hand drive on non-electrified railways without having to change locomotives and on the other hand do not have to use their combustion engine on electrified routes. On the other hand, the high mass due to the two drive systems is disadvantageous.

Two-motor vehicles are not hybrid vehicles, as the second energy storage device required for a hybrid drive , usually in the form of a battery, into which braking energy is fed back, is missing. They can be prepared comparatively easily from diesel-electric vehicles if the direct current from the contact line has a voltage similar to that generated by the vehicle's own generator. Two-motor vehicles are often used for work or construction trains , mainly because they can drive even when the overhead line is switched off.

Examples

Locomotives

Two-power locomotive of the Rhaetian Railway in diesel operation (with snow thrower ), clearly recognizable the ironed pantograph
Two-power locomotive 478 601 of the DB in the Berlin Olympiastadion station (1999)
Type LHB ES 500 from RAG Zechenbahn- und Hafenbetriebe Ruhr-Mitte
FEVE twin-power locomotives in 1912 and 1911 in diesel operation in the Cabezón de la Sal station
AMT twin power locomotive ALP-45DP from Bombardier
  • With the early electrification of the Swiss rail network, sidings were also spanned. Thus, most of the shunting tasks could be done with electric shunting locomotives and tractors . To operate non-electrified tracks that were still in place, three tractors were initially equipped with a battery (Tea I). From 1950 diesel engine-generator units were installed instead. This resulted in a total of 93 two-power tractors in three different performance classes: Tem I 251–275 (1950–1957), Tem II 276–298 (1967) and Tem III 321–365 (1954–1962). A few of these vehicles are still in service.
  • With the development of the SBB Cargo delivery concept, more and more diesel locomotives were used so that the freight wagons can be delivered directly to the sidings. Because considerable distances are covered under contact wire, the SBB Eem 923 twin-power locomotives were put into operation from 2012 .
  • New York's Grand Central Terminal and Pennsylvania Station were only allowed to be approached by electric vehicles. Therefore, a total of 60 diesel locomotives of the EMD F series with a supply from the third rail were built between 1956 and 1960 . These five-axle locomotives with the Bo '(A1A) wheel arrangement were designated as FL9 .
  • The FL9s have been partially replaced by "Genesis" P32AC-DM (dual mode) from GE Transportation Systems (see list of locomotives from General Electric ).
  • The Long Island Railroad in New York purchased the DM30AC from EMD Electro-Motive Diesel for its network in 1997/98 .
  • In the south of England (Southern Region, south of London) from 1962 class 73 twin-powered locomotives, later also 74, were used, which normally obtained their current from the third rail on the side. Many of these locomotives are still in use today.
  • The Deutsche Reichsbahn procured nine shunting locomotives, DR series E 80 , which draw their energy from batteries on non-electrified route sections.
  • The German Bahn AG had after the acquisition of the S-Bahn Berlin two of Gmeinder built Zweikraftloks the series 478.6 (diesel and 750 volts DC via power rail). These locomotives were sold to the Havelländische Eisenbahn (hvle) in 2009
  • In 1964, Ewald Kohlen AG procured five ES 500 locomotives from Linke-Hofman-Busch with battery and overhead line operation, which were used by Zechenbahn- und Hafenbetriebe Ruhr-Mitte after the takeover by Ruhrkohle AG . Between 1981 and 1983, the machines were converted to three-phase drive (dual system capability) and auxiliary drive with a diesel engine instead of the batteries to ED 700. They were scrapped in 1993.
  • At Eisenbahn + Häfen in Duisburg , large numbers of two-engine locomotives built by Jung (diesel and 600 volts direct voltage from overhead lines) were used for decades. A more modern successor series built by Henschel was parked in front of the young locomotives after a relatively short period of use.
  • The Hungarian railway company Helyiérdekű Vasút (HÉV) owned two-engine locomotives for passenger transport as early as the 1960s .
  • Two twin-power locomotives of the Gem 4/4 series have been operating on the Rhaetian Railway since 1968 .
  • In 2010, the Chemins de fer du Jura (CJ) converted two De 4/4 I luggage railcars into Gem 4/4 twin- powered locomotives . One machine is used by the CJ, the other came to the Meiringen-Innertkirchen-Bahn (MIB).
  • 17 twin-power locomotives of the 1900 series were purchased in 2003 by the northern Spanish company Ferrocarriles de Vía Estrecha (FEVE).
  • SBB Cargo placed an order with Stadler Rail for 30 type Eem 923 twin-power locomotives for light delivery and shunting services, which were built from 2012 to 2013.
  • New Jersey Transit (NJT) in the USA and Agence métropolitaine de transport (AMT) in Montreal ( Canada ) ordered a total of 46 Bombardier ALP-45DP twin-engine locomotives from Bombardier .
  • In 2008, the freight division of the Czech state railway ČD had a class 210 locomotive converted into a class 218 dual -power locomotive.
  • In March 2019, Siemens presented the prototype 248 001 ( Vectron Dual Mode ). Regardless of the operating mode, the locomotive has an output of 2000 kW on the wheel.
  • Electric steam locomotives were used in shunting operations on the Swiss Federal Railways during World War II .

Railcar

Berlin “Duo S-Bahn” in Oranienburg station
Combino Duo of the Nordhausen tram
Russian DT1 (ДТ1) multiple unit with diesel generators and pantographs

See also

Web links

Individual evidence

  1. ^ Louis A. Marre: Diesel Locomotives: The first 50 years. A guide to diesels built before 1972. (= Railroad reference series. No. 10). Kalmbach Publishing, Waukesha 1995, ISBN 0-89024-258-5 , pp. 98-99.
  2. ↑ DE75 BB . From: gmeinder-lokomotiven.de , accessed on March 3, 2015.
  3. ↑ Shunting diesel accessed on October 13, 2015.
  4. ↑ dual-frequency hybrid locomotive Butler for freight and shunting. (PDF; 992 kB). From: stadlerrail.com , accessed December 18, 2013.
  5. ↑ Siemens presents prototype. In: Lok Magazin. 5/2019, p. 27.
  6. ↑ Les autorails dits "modern" coupables en UM. In: Ferrovissime. No. 98, p. 20 ff.