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Design::DR Class 130 family

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Class::convert    Engine::baureihe    Speed::diesel    Daten::power    Class::electric    Freight::'''''

Design

Driving cab of a DBAG Class 232

The locomotives are constructed on a steel frame with attached carbody; units with electric heating are {{safesubst:#invoke:convert|convert}} longer due to the extra space requirements.

The two 3-axle bogies pivot on a central pin, with primary suspension being of the coil spring type with additional dampers. The power transmission is electric. In the original Class 130 a 16-cylinder turbo-charged diesel engine created electric energy for the nose-suspended DC traction motors. (Some rebuilt locomotives have 12-cylinder engines).

Due to construction and the electric power transmission the class 232 locomotives are very heavy. The axle load of 20.3 t allows usage only on main lines.

Side view of 5D49 engine

The power for the unmodified classes is powered by a direct-injection, 16-cylinder, four-stroke, Diesel engine (of type 5D49) delivering when turbocharged {{safesubst:#invoke:convert|convert}} The fuel capacity is 6000 litres, additionally 1100 litres of engine oil is used.

The diesel engine of the V 300 had significant initial problems; the original crankshaft was made from ductile cast iron but was prone to cracking, particularly after the winter. The cast cranks were replaced with forged versions providing running for 20,000 hours, but initially they suffered from low surface hardness; this problem was solved by nitriding the surface, and by locally heating the surface with a CO2 laser (see annealing).

The engine drives an AC generator whose current is rectified by six-way rectification using 240 diodes. Traction motor power control is achieved via the engine (i. e. using the throttle) and by thyristor 'choppers'.


DR Class 130 family sections
Intro   History    Design   Classes   Usage    Variants   See also  References and notes   External links   

Design
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