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The Rotary Vane Principle

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HOW IT WORKSFEATURES & BENEFITS

The rotary vane air-end cylinder is the core of Pneumofore’s technology. This enduring and proven design offers a wider range of benefits than other single-stage air compressor and vacuum pump types, such as screw or liquid ring. Pneumofore has optimized its functionality and improved its performance for nearly a century.



HOW IT WORKS


The Pneumofore rotary vane air-end comes in compressor or vacuum pump versions that have only slight differences. The basic principle is the same for both. The air-end consists of several sliding blades set into a rotor which turns on an eccentric axis within a static, air-tight cylinder. When the rotor turns, the centrifugal force causes the blades to slide and extend out of the rotor’s longitudinal grooves. In their extended state, these blades function like vanes that adjust to the cylinder’s shape as they are driven by the rotor.

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Incoming air enters the air-end when the pressure-activated air inlet valve, which is a regulating piston, yields to pressure states in the air circuit. The air is drawn into the cylinder by the rotating vanes, which enclose space hermetically as they course through the compression area. The air is compressed as the volumes between the vanes are reduced due to the eccentricity of the cylinder wall and the rotor. After maximum compression, the air exits through the outlet. In compressors, the intensive injection of coolant reduces the overall temperature of the compression cycle and ensures copious lubrication. The injected coolant also functions as an active sealant to keep the vanes airtight.


FEATURES & BENEFITS


Simple Design With Few Moving Parts

Sturdy, compact construction, easy to access and maintain, easy replacement of parts, extremely reliable and durable.

Single-Stage Compression

The nature of the design produces sufficient compression in a single stage, resulting in a high compression ratio during a single cycle (about 10:1), as well as better energy efficiency, reduced risk of fault, and reduced maintenance requirements.

Direct Axial Coupling to the Motor

Direct coupling is possible because the high compression ratio permits low rotation speeds, eliminating the need for transmission or gears. Fewer parts means lower energy dissipation and simplified maintenance.

Low Rotation Speeds

Lower speeds reduce vibration, thus diminishing noise and wear, lowering temperature and eliminating the need for foundations.

Low Cycle Temperature

Lower temperatures reduce wear, coolant consumption, and leakage caused by distension of parts. Less energy is needed for cooling, and the purity of delivered air is enhanced.

Low Need for Maintenance

With fewer parts suffering little wear, single-stage rotary vane units offer cleaner and more reliable operation, significantly reducing maintenance needs.
ROTARY VANE BY PNEUMOFORE

simple, reliable & durable

Direct coupling means few moving parts, low rotation speed, low temperature. This virtually eliminates repairs and ensure superior reliability and longevity.

high energy savings

Air cooling through vertical layout, direct coupling, and intensive oil injection can result in up to 70% less power usage than other systems.

designed for extremes

Tested and proven for high performance in desert and tropical climates and available for special requirements like explosive gas or food safety.

low cost of operation

Low maintenance, negligible repairs, high energy savings and high reliability (no production downtime) make this the least costly long-term option available today.

easy to install and run

Ready-to-use turnkey system with optional Variable Speed drive. No foundation or water needed. Compact footprint with heat recovery. ISO 9001 and ISO 14001 certified.

first class support

Each unit comes with integration engineering and a 5-years warranty. Extraordinary and regular service by Pneumofore certified professionals is available worldwide.
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