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Rail vehicle having an improved cooling system and method for its internal combustion engine

A technology for rail vehicles and cooling systems, which is applied to locomotives with internal combustion engines, locomotives with gas turbines, and engine cooling.

Active Publication Date: 2021-03-05
BOMBARDIER TRANSPORTATION GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it has been found that this type of arrangement may actually result in a significant increase in the temperature of the air within the underfloor, which in turn may impair the operation of other equipment also located under the vehicle floor
In trains with propulsion and diesel engines distributed, heat can even build up in the underfloor towards the rear of the train, exacerbating the problem

Method used

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  • Rail vehicle having an improved cooling system and method for its internal combustion engine
  • Rail vehicle having an improved cooling system and method for its internal combustion engine
  • Rail vehicle having an improved cooling system and method for its internal combustion engine

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Embodiment Construction

[0033] The present invention relates to a rail vehicle having a cooling system and using a cooling method that exhausts hot air from the underfloor space of the rail vehicle to prevent negatively affecting the performance of other equipment located in the underfloor space.

[0034] Also refer to figure 1 with figure 2 . The rail vehicle 10 includes a carbody 12 , side skirts 14 and two bogies 16 supporting different ends of the carbody 12 . The vehicle body 12 has a floor 18 and side walls 20 projecting upward from the floor 18 . Each bogie 16 is provided with a wheel 22 , which is sometimes independent but usually mounted on an axle 24 . Each bogie 16 has an electric motor 26 that powers at least one wheel 22 and typically a single axle 24 . Typically, each bogie 16 is provided with one electric motor 26 for each axle 24 .

[0035] Both side skirts 14 depend from the floor 18 and project at least partially along or substantially along a respective one of the side walls ...

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Abstract

A cooling system for a rail vehicle having an internal combustion engine as a generator of electricity is operative to exchange heat between a cooling fluid circulating in a cooling circuit connectedto the internal combustion engine and air located in an underfloor space of the rail vehicle. A heat exchanger and a fan, located in the underfloor space, are fluidly connected to an exhaust in a sideskirt depending from a floor of the rail vehicle. The fan is operative to force air from the underfloor space through the heat exchanger and through the exhaust to an ambient space located on an external side of the side skirt.

Description

technical field [0001] The present invention relates generally to the field of diesel-electric rail vehicles. More specifically, the present invention relates to an improved cooling system and method for rejecting heat generated by a diesel engine of a diesel-electric rail vehicle. Background technique [0002] Diesel-electric rail vehicles such as locomotives, power cars, or diesel electric multiple units (DEMUs) use diesel engines to generate electricity to power electric motors connected to the wheels of the vehicle. These diesel engines typically have efficiencies in the range of about 40% to 60%, which means that about 40% to 60% is wasted in the large amount of heat that has to be rejected. [0003] The cooling unit for cooling the diesel engine of the rail car is usually arranged under the floor of the rail car, under which fresh air can be drawn from the sides of the vehicle, circulated through the cooling unit and circulated as hot air in the vehicle The interior ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P11/00F01P3/18B60K11/06
CPCF01P11/00F01P3/18B60K11/06B61C17/04B61F1/00B61C5/02Y02T30/00F01P5/04F01P2005/046
Inventor 本·迪德里克斯
Owner BOMBARDIER TRANSPORTATION GMBH