What is the difference between the impeller of the vacuum cleaner and the impeller of the automobile air conditioner?
The impeller of the dust collector belongs to the centrifugal impeller, and the centrifugal impeller rapidly throws out the fluid on the surface of the impeller by centrifugal force, and has achieved the purpose of accelerating the flow of the fluid. The speed of the centrifugal impeller is higher, the flow direction of the fluid is from the impeller rotating axial, from the impeller radial out. After the fluid is accelerated, the impeller surface will form a "vacuum" (in fact, no vacuum effect is only negative pressure), there will be new fluid to fill. Centrifugal impeller is the biggest feature of the rapid flow of fluid, in a short period of time through the impeller to accelerate the discharge of a large number of fluid. Thus, strong suction can be formed at the inlet portion. In order to play a "vacuum" effect.
Automobile air conditioning fan impeller, is the ordinary fan impeller. The impeller is a flat impeller, the fluid is axial, axial, and out of the direction of the same, change is only fluid speed. This kind of impeller is characterized by low speed, low efficiency, but low cost.
Different.First of all, the surface of all the impeller and blade surface is in accordance with the principle of hydromechanics. The fluid flows along the surface of the blade, and the blade plays a guiding role
