Air intake and discharge grille for special vehicle

A special vehicle and grille technology, applied in the direction of radiators, etc., can solve the problems of large aerodynamic resistance, heavy weight, complex processing, etc., and achieve the effect of improving capacity, low processing cost, and reducing flow resistance

Inactive Publication Date: 2010-06-02
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of relatively large aerodynamic resistance, complex processing and heavy weight of the intake and exhaust grilles of special vehicles in the prior art,...

Method used

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  • Air intake and discharge grille for special vehicle
  • Air intake and discharge grille for special vehicle
  • Air intake and discharge grille for special vehicle

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Embodiment Construction

[0023] Such as figure 2 As shown, the single arc curved plate intake and exhaust grille of the present invention includes a moving blade 1 and a stationary blade 2, and the blades are mainly composed of four arcs and two straight lines. The positive airflow 3 and the reverse airflow 4 enter and exit from both ends of the blade, such as image 3 As shown, the moving blade can rotate when needed, and is stuck between two stationary blades to enhance the protection function. The specific design process of the blade is as follows:

[0024] Known: the cooling air volume through the air intake grille is 7.87m 3 / s, the air intake grille flow area is about 1.2419m 2 , the thickness of the grid blades is 6mm, and the thickness of the grid structure is 50mm, then:

[0025] (1) Take the average speed of the vehicle as u1=40km / h=11.11m / s, and the vertical inlet speed above the air intake grille V 1 = 7.87 1.2419 = ...

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Abstract

The invention relates to an air intake and discharge grille for a special vehicle, in particular to an intake and discharge grille with good air flow resistance for a special vehicle. The air intake and discharge grille comprises movable vanes and fixed vanes, the vanes of the grille are of the type of a single-arc bent plate, and the radians and the thicknesses of the vanes are scientifically calculated according to the entry angle and the exit angle of air flow, thereby ensuring the protective properties of the grille of a single-arc bent plate, greatly reducing the flow resistance of air flow by improving the vanes of the grille, and improving the capabilities of a cooling system of a vehicle. Besides, the grille of a single-arc bent plate has simple structure, thereby achieving better manufacturability and lower processing cost.

Description

technical field [0001] The invention relates to a vehicle intake and exhaust grille structure, in particular to a special vehicle intake and exhaust grille with good airflow resistance. Background technique [0002] The purpose of the intake and exhaust grilles of special vehicles is to provide maximum protection for the components of the power room, so that they are not attacked by foreign objects such as stones, and at the same time allow a large amount of air to pass through to meet the requirements of combustion and cooling. However, these functional requirements for the grille are contradictory from a design point of view, because for a fluid substance such as air, the larger the flow area provided, the better the circulation, but it is also easy Make stones and other foreign objects enter the power chamber through the grille. Therefore, people have proposed various grille structure types in an attempt to meet the main requirements of the grille, that is, to obtain the...

Claims

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Application Information

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IPC IPC(8): B60R19/52
Inventor 周丽张世同陈韶欣刘建峰李云龙赵春伟张佳卉石军李欣
Owner CHINA NORTH VEHICLE RES INST
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