Diesel-Electric Locomotive
AssigneeAlstom Transport SA
InventorsSebastien Christian Geraud, Pierre Chanal
Life of this patent
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Abstract
The diesel-electric locomotive (10) includes: a diesel engine (12), an alternator (20) mechanically coupled for driving thereof to the diesel engine (12) and connected as output to a direct current bus (26) through a rectifier (22), at least one electric traction motor (14) connected to the bus (26) through a traction inverter (34), at least one piece of auxiliary equipment (16, 18) with a power supply, powered from the diesel engine (12). It includes, to power the or each piece of auxiliary equipment (16, 18), a chain (80) for shaping the current connected as input to the direct current bus (26).
Claims4
A diesel-electric locomotive including:
- a diesel engine
- an alternator mechanically coupled for driving thereof to the diesel engine and connected as output to a direct current bus through a rectifier,
- at least one electric traction motor connected to the bus through a traction inverter,
- at least one piece of auxiliary equipment with a power supply, powered from the diesel engine,
- to power the or each piece of auxiliary equipment, a chain for shaping the current connected as input to the direct current bus, said chain for shaping the current includes an auxiliary inverter the output of which is connected to the input of a step-up transformer,
- characterized in that it includes a back-up switching means able to selectively connect the chain for shaping the current to the output of a traction inverter and the traction inverter includes a piloting means to produce a current identical to that produced normally by the auxiliary inverter.
The diesel-electric locomotive according to any one of the preceding claims, characterized in that the locomotive includes at least one rheostatic braking chopper arranged between the direct current bus and the or each traction inverter.
Dependencies are inferred from the claim text.