How does a blower work?

A blower works by increasing the pressure of air or gas through the rotational movement of an impeller or rotor. This rotating component creates a centrifugal force that accelerates the air outward, increasing its speed and volume, which in turn builds up pressure within the blower’s housing. The compressed air or gas is then directed towards a specific outlet, making blowers useful for a variety of applications, including ventilation, air conditioning, and industrial processes.

Here’s a more detailed breakdown:

۱٫ Intake:
The blower draws in air or gas through an inlet.
۲٫ Impeller Rotation:
An impeller (or rotor) spins rapidly, drawing the air or gas into its center and then propelling it outward due to centrifugal force.
۳٫ Pressure Build-up:
As the air or gas moves outward between the impeller blades, its volume expands, and its velocity increases, causing a rise in pressure within the blower’s housing.
۴٫ Discharge:
The pressurized air or gas is then directed out of the blower through an outlet, ready for use.

Different types of blowers, like centrifugal, axial, or positive displacement blowers, utilize slightly different mechanisms to achieve this pressure increase, but the fundamental principle of converting mechanical energy into kinetic energy and then into pressure energy remains the same.

This video explains how the impeller in a leaf blower works to generate airflow and clear debris: