How It Works: The Working Principle of Elmo Rietschle 2BH1 Series Side Channel Blowers
The Elmo Rietschle 2BH1 series by Gardner Denver is essentially a high-pressure regenerative blower. Its operational efficiency stems from the synergy between centrifugal force and vortex intensification. Here is the step-by-step process:
Centrifugal Acceleration: The electric motor drives the impeller to rotate at high speeds. The multiple blades on the impeller force the air inside the pump housing to rotate, generating powerful centrifugal force.
Vortex Formation: As air is pushed into the annular side channel, the unique spiral geometry of the housing creates a helical vortex flow. The air is repeatedly accelerated and compressed, merging with incoming air streams for continuous pressure buildup.
Dual Functionality (Blow & Vacuum): The pressure is amplified stage-by-stage until it is discharged as high-pressure airflow. Conversely, in suction mode, the negative pressure created by the impeller rotation draws air in through the inlet, enabling both blowing and vacuum functions.
Clean & Oil-Free: The entire process is 100% oil-free. Pressure intensification relies on the precision clearance between the impeller and the housing, ensuring the delivered air remains clean and uncontaminated.