Rotary Lobe Compressor Aerzen Presents the First Rotary Lobe Compressor

| Editor: Dr. Jörg Kempf

The world of rotary lobe blowers on the one side and the world of screw compressors on the other side, both strictly separated from each other: that’s past history now! The compressed air specialists from Aerzener Maschinenfabrik have been successful in building a bridge beetween both worlds.

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Ceremonial unveiling at IFAT Entsorga (Picture: Kempf)
Ceremonial unveiling at IFAT Entsorga (Picture: Kempf)

Munich, September 13th: “Future has begun today!” Saying this, Stephan Brand, Marketing Manager of Aerzener Maschinenfabrik, has opened the press conference at this year’s IFAT Entsorga trade fair. The highlight of the event was the unveiling of a new benchmarking series of rotary lobe compressors: Delta Hybrid is a synergy of blower and compressor technology. By combining the technical advantages of both concepts, it offers completely new possibilities for generating positive pressure or vacuum in air and neutral gas applications.

Following extensive field tests under harshest operating conditions and after over three years of operation in various applications — such as wastewater treatment plants, in the chemical industry, in power generation plants, or for the pneumatic transport of powders — , the Delta Hybrid packages now are ready for their market introduction.

A total of seven patents or patent applications currently make the Delta Hybrid “one of the most innovative products in compression technology,” Brand is profoundly convinced. The package concept is based on the well known and successful Aerzen Delta design (Delta Blower and Delta Screw) and has been systematically upgraded.

Focus on energy effiency

Over a ten year operating period, energy costs equate to about 90% of the total Life Cycle Costs of a compressor. With this in mind, the Delta Hybrid was developed with the focus on increasing energy efficiency and achieving a significant reduction of energy costs and greenhouse gas emissions. While low pressure applications call for the Roots-principle of isochoric compression, the screw compressor, with its internal compression, becomes the preferred choice for its energy efficiency in higher pressure ranges. The ideal union of both rotary lobe blower and screw compressor technologies resulted in the Delta Hybrid, a future-oriented innovation that reduces the energy consumption by up to 15% compared to usual compressors.

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