RV45 Centrifugal Fans

ebm-papst’s remarkably quiet and powerful RV45 DC centrifugal fan is ideal for applications requiring rapidly changing airflow and high pressures, including respirators/ventilators, extraction systems, and packaging machines, to name a few. The RV45’s aerodynamics and motor are optimized for rapid speed changes, while its compact size and innovative design keep it lightweight and virtually silent.

RV45 in Medical Applications

Fans used in the medical field, especially those found in sleep apnea or breathing devices, have to meet rigorous standards in regard to dynamics, smooth operation, reliability, acoustics, and size. ebm-papst’s RV45 centrifugal fan passes every test with flying colors. Its extremely dynamic EC internal rotor motor supports flexible adaptation to the breathing sequence, switching both quickly and reliably between a high inflation pressure for inhalation and a considerably lower pressure for unobstructed exhalation. The high speed of up to 50,000 rpm produces the exact power required, assisted by the low moment of inertia of the rotor. Vibration-absorbing materials and ideal aerodynamics deliver quiet operation while maintenance-free ball bearings ensure years of optimal operation, as both characteristics are vital for breathing equipment. Designed with external control in mind, users can employ their systems or work with the ebm-papst RV45 power module (part number 992.0640.004), which enables the RV45 to be used in a wide range of industrial applications as well.

RV45 in Industrial Applications

The RV45 centrifugal fan can deliver pressures up to 5,000 Pa and vary its speed between 5,000 rpm and 50,000 rpm with an acceleration of 50 rpm per millisecond. Such a range of speeds is important for devices such as respirators and vacuum-lifting units, but the fan is still extremely quiet. Its airflow of up to 540 l/min enables focused ventilation or cooling. The control electronics monitor the maximum permissible power consumption during quick bursts of speed to ensure that the unit’s responsiveness is not impacted. In addition, the integration of active braking functionality enables an additional increase in responsiveness during phases of negative acceleration.

With its big performance and all features designed into a 64 mm x 69.5 mm x 54.5 mm package smaller than a tennis ball, the RV45 is the ideal solution for any number of demanding tasks in the medical or industrial markets.

RV45 Whitepaper