Device for disturbing the air flow circulating beneath the chassis of a railway vehicle

A technology for rail vehicles and chassis, applied in the field of rail vehicles, which can solve the problems of optimizing sound absorption, increasing the mass of rail vehicles, and facilitating maintenance operations of bogies and components

Active Publication Date: 2010-01-13
ALSTOM TRANSPORT TECH SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of this material did not provide optimal sound absorption and instead significantly increased the mass of the rail vehicle
Also, those materials are expensive and complicate the construction of the chassis by adding production steps
In addition, various pollutants, such as dust from brake linings, for example, tend to accumulate in bogie cavities and reduce the effectiveness of this type of material after a certain time
In conclusion, the presence of this type of material does not facilitate maintenance operations on bogies and elements placed in cavities

Method used

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  • Device for disturbing the air flow circulating beneath the chassis of a railway vehicle
  • Device for disturbing the air flow circulating beneath the chassis of a railway vehicle

Examples

Experimental program
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Embodiment Construction

[0020] In the description, the terms "longitudinal", "lateral", "upper", "lower", etc. are defined according to the customary direction of the rail vehicle installed on the track, and the terms "upstream" and "downstream" are defined according to the rail vehicle As defined by the direction of travel.

[0021] Reference figure 1 , Which describes a rail vehicle 1 which includes a chassis 2 which forms the lower part of the rail vehicle. The chassis has a substantially horizontal lower surface 4 configured to extend facing the track on which the rail vehicle 1 runs.

[0022] The chassis 2 includes a cavity 6 at the longitudinal end of the rail vehicle 1, and the cavity 6 is formed by the lower surface 4. The cavity 6 receives the bogie 8 supporting the chassis 2. A similar cavity is also provided at the other longitudinal end of the rail vehicle to receive another bogie. For reasons of simplification, only one cavity 6 is described here. Install one shaft or multiple shafts to r...

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PUM

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Abstract

The railroad car 1 is equipped with the chassis 2 having at least one cavity 6 to support a supporting bogie 8 of the car 1, wherein the bogie 8 is extended approximately in the intersecting direction within the cavity 6. The chassis is equipped with at least one splitting device for correcting the shape of the cavity 6 or the shape of its neighboring area, in which the splitting device is to correct the turbulence of the air formed in the cavity 6 when the car moves, as well as a device for interrupting turbulence under railroad car chassis.

Description

Technical field [0001] The present invention relates to a type of rail vehicle that includes at least one cavity for receiving a support bogie for the rail vehicle, the bogie being configured to be substantially in the cavity Extend laterally. Background technique [0002] The rail vehicle is supported by at least two bogies which are arranged in two cavities which are arranged at each end of the chassis of the rail vehicle. [0003] When the vehicle is moving, especially at high speed, such cavities interrupt the airflow flowing under the rail vehicle. The interruption that occurs when the air rushes into the cavity creates acoustic interference and makes people outside the rail vehicle uncomfortable. This problem becomes particularly prominent when rail vehicles are moving in urban environments or residential areas. [0004] In order to overcome this shortcoming, the sound-absorbing material is usually placed in the cavity for receiving the bogie. However, adding this material ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61F5/00
CPCB61D17/02B61F1/10Y02T30/32Y02T30/00
Inventor E·吉约托B·苏
Owner ALSTOM TRANSPORT TECH SAS
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