Diesel multiple unit

Multiple unit trains
Subtypes
Electric multiple unit Diesel multiple unit Push-pull train
Technology
Multiple-unit train control
By Country
Britain (DMU) Britain (EMU) Ireland

DMU, type SA108 of Great Poland Voivodship in Poznań, Poland

The Transwa Prospector DEMU capable of up to 200 km/h provides a passenger service between Perth, Western Australia and the mining town of Kalgoorlie

A diesel multiple unit or DMU is a multiple unit train consisting of multiple carriages powered by one or more on-board diesel engines. They may also be referred to as a railcar or railmotor, depending on country.

Transmission

The diesel engine drives the train through a transmission system. The transmission system may be:

Mechanical, using a gearbox (diesel-mechanical)
Hydraulic, using a torque converter (diesel-hydraulic)
Electric, using a generator to power traction motors (diesel-electric)

Diesel Multiple Unit Media

A JNR Class KiHa40 in use for Erimo Express service, Hokkaido, Japan
An IE 29000 Class diesel multiple unit on a western commuter service at Dublin Connolly Rail station, Ireland
A British Rail Class 185 diesel hydraulic multiple unit operated by TransPennine Express at Manchester Piccadilly station, United Kingdom
One of the underfloor diesel engines with hydraulic transmission under a car of JR Shikoku 2700 series DMU
DMU 7023 at Zagreb Central Station
Motorový vůz 810, oblast stanice Libuň
ČD Class 814, Mladějov, Jičín District
Iarnród Éireann DMU 2751 at Limerick Colbert station, 2006
Romanian Class 77 Malaxa DMU in Câmpulung Moldovenesc, 2006

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