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This Metra EMD F40PHM-2 locomotive uses a diesel–electric transmission designed by Electro-Motive Diesel. A diesel–electric transmission, or diesel–electric powertrain, is a transmission system powered by diesel engines for vehicles in road, rail, and marine transport.
Diagram of Priestman oil engine from The Steam engine and gas and oil engines (1900) by John Perry Petrol–electric Weitzer railmotor, first 1903, series 1906. The earliest recorded example of the use of an internal combustion engine in a railway locomotive is the prototype designed by William Dent Priestman, which was examined by William Thomson, 1st Baron Kelvin in 1888 who described it as ...
OPE1A [ru; uk] industrial electro-diesel locomotive for quarry railways with primary electric locomotive and two diesel B–units. An electro-diesel locomotive (also referred to as a dual-mode or bi-mode locomotive) is a type of locomotive that can be powered either from an electricity supply (like an electric locomotive) or by using the onboard diesel engine (like a diesel-electric locomotive).
A battery–electric locomotive (or battery locomotive) is powered by onboard batteries; a kind of battery electric vehicle. Such locomotives are used where a diesel or conventional electric locomotive would be unsuitable. An example is maintenance trains on electrified lines when the electricity supply is turned off.
In a diesel–electric multiple unit (DEMU), a diesel engine drives an electrical generator or an alternator which produces electrical energy. The generated current is then fed to electric traction motors on the wheels or bogies in the same way as a conventional diesel–electric locomotive. [1]
Electro-Motive Diesel (abbreviated EMD) is a brand of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. Formerly a division of General Motors , EMD has been owned by Progress Rail since 2010.
An EMD 12-645E3 turbocharged two-stroke diesel engine, installed in an Irish 071 class locomotive. In engineering, a prime mover is an engine that converts chemical energy of a fuel into useful work. [1] In a locomotive, the prime mover is thus the source of power for its propulsion. [2]
Electro-diesel locomotives which can operate as an electric locomotive on electrified lines but have an on-board diesel engine for non-electrified sections or sidings have been used in several countries; examples are the British Class 73 from the 1960s and the last mile concept from around 2011, where an electric freight locomotive can work ...