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A hot air backflow prevention device fixed on the cab

A backflow device and cab technology, applied in transportation, packaging, vehicle parts, etc., can solve the problems of increasing air temperature and reducing the working efficiency of the cooling system, and achieve the effects of improving the effect, preventing hot air backflow, and reducing the liquid-air temperature difference

Active Publication Date: 2022-03-08
SHAANXI HEAVY DUTY AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because there is a pressure difference between the front and rear of the fan when it is working, a part of the hot air at the rear end of the fan flows back to the low pressure place at the front end (the front part of the radiator and intercooler) through the surrounding gap, which increases the temperature of the external air passing through the heat dissipation core and reduces the cooling effect. system efficiency

Method used

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  • A hot air backflow prevention device fixed on the cab
  • A hot air backflow prevention device fixed on the cab
  • A hot air backflow prevention device fixed on the cab

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] see Figure 1 to Figure 4 , the present invention includes an elastic cover 3, the elastic cover 3 is fixed between the cab 6 and the chassis part 7, the two sides of the elastic cover 3 are provided with connecting parts 5, and the end of the connecting part 5 is provided with a bottom fixing part 1 , the connection part 5 is a folded structure, and the connection part 5 is provided with a fixed pad cover 2 for fixing with the cab 6 . The top of the elastic cover 3 is provided with a mounting boss 4 for fixing with the driver's cab 6 . The connecting portion 5 has no less than three fold structures, and the fold structures of the connecting portion 5 are arranged in a fan shape. The thickness of the connecting part 5 is smaller than that of the elastic covering part 3 , and the elasticity of the connecting part 5 is greater than that of the elastic covering p...

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Abstract

The invention discloses a hot air backflow prevention device fixed on the cab. The invention fills the gap between the cab and chassis parts through an elastic cover, which can adapt to the complex air leakage space and can be freely expanded and contracted between the cab and the chassis parts. . Effectively cover the air leakage gap inside the cabin, prevent hot air from flowing back, and improve heat dissipation performance. It effectively solves the problem of anti-hot air backflow of the vehicle, improves the cooling system effect, and reduces the liquid-air temperature difference by 2°C‑3°C. It is especially suitable for vehicles that cannot arrange the anti-heat air return plate on the chassis.

Description

technical field [0001] The invention belongs to the field of heavy-duty automobile parts manufacturing, and in particular relates to a hot air backflow prevention device fixed on a driver's cab. Background technique [0002] Because there is a pressure difference between the front and rear of the fan when it is working, a part of the hot air at the rear end of the fan flows back to the low pressure place at the front end (the front part of the radiator and intercooler) through the surrounding gap, which increases the temperature of the external air passing through the heat dissipation core and reduces the cooling effect. system work efficiency. With the increase of engine power and emission upgrades of heavy-duty vehicles, the requirements for the cooling system are becoming more and more stringent. Therefore, reducing the return of hot air, increasing the air intake coefficient of the cooling system, and improving the flow field in the cabin to improve cooling performance a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60R13/08
CPCB60R13/0861
Inventor 李晗李朝勇田杰
Owner SHAANXI HEAVY DUTY AUTOMOBILE