Double-flow-guiding annular fan with blade type air separator

Abstract

The invention discloses a double-flow-guiding annular fan with a blade type air separator. An inner ring and an outer ring are added at the position of each blade tip of the fan, and separately have aflow guiding effect and a flow distributing effect. The center axis of each inner ring and the center axis of the corresponding outer ring are consistent to the center axis of the fan, and the innerrings are connected with the tops of blades so that the inner rings are fixed on the fan. The diameter and the width of each outer ring are greater than those of the corresponding inner ring, ring baffle plates with the same ring widths are separately arranged at two ends of each outer ring, and the ring width of each ring baffle plate equals to the difference between the radius of the corresponding inner ring and the radius of the corresponding outer ring. Each inner ring and the corresponding outer ring are connected with each other by a plurality of straight blades which are arranged in theperipheral directions of the rings and are distributed at equal intervals, the straight blades divide the inner rings and the outer rings to form air channels with the same sizes, and the air channels have rectification effect. By flow guiding, flow distributing and rectification, unsteady flow in the fan is relieved effectively, and the working stability of the fan is improved.

Description

technical field [0001] The invention relates to an automobile fan, in particular to a double guide annular fan used for a vaned air separator of an automobile engine cooling system. Background technique [0002] The car engine will generate a lot of heat during operation, which will increase the temperature of the engine. When the engine is in a high temperature environment for a long time, it will affect the working characteristics of the engine parts and reduce the life of the parts; affect the engine lubrication and the concentration of the combustible mixture, making the engine work unstable; affect the matching clearance of the various parts of the engine, making the engine work abnormally . Therefore, automobile engines all use a "water cooling system". That is to add water passages around the engine cylinder, through the action of the water pump to make the cooling water flow in these water passages, and introduce the water to the radiator with cooling fins at the f...

AI Technical Summary

Problems solved by technology

Unstable flow will increase the force between the air and the fan blades, aggravate the vibration of the fan blades, and reduce the working life of the fan; the violent vibration of the fan blades will also increase the noise on the blade surface, reducing the noise performance of the vehicle. Performance; the instability of the flow also reduces the pressure difference on both sides of the fan, reduces the air volume of the fan, and affects the performance of the entire engine cooling system

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