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There is a large variation of different types of displacement machines, that is machines which uses volume changes to compress a fluid or to transform a fluid pressure to a rotating movement. Compressors and air engines and pumps are examples of such machines. The small lamellar air compressor, from 2,5 l/s up to 1500 l/s, is one example. The advantages of that type are small dimensions and quite a low level of sound when running. Large piston compressors have still the best energy economy. Between those there are helical- screw- and tooth compressors. Despite the multitude of designs every type has its limited application area. The advantages of the Aucon machine are that they unite the best efficiency of the piston compressor and the flexibility of the small lamellar machines. Therefore the Aucon machine has a larger application area. It has a simple design and geometry and can be developed even by small companies.
Cylinder with vane The Aucon machine is simple in design. It has a cylinder with a vane fixed on its inner annular surface and is surrounded with a lid on each side, where the bearings and transmission gear. All that together is named the rotating house.
The rotating house opened.... The arrows show the cooling air through the machine
....and closed The rotating house surrounds the rotor, with the object to establish channels for the gas flow and together with the vane create volume variations. Rotor This is a unique and internationel patent pending idea. Swedish patent is approved. It is the rotating house which transmit or receive power. Because of those units rotating together the friction becomes minimal. The rotor has the only function to demarcate volumes and to lead the gas flow to and from mentioned volumes.
The advantages of the Aucon machine is: 1. It has a simple geometry and will be inexpensive to manufacture. 2. It has no axial forces as in a screw compressor. 3. It can be used for very high pressure. 4. It has not the “bad space” (between the cylinder top and the piston at TC position) as in a traditional reciprocating piston machine. 5. It has a more cooling efficiency, as the cooling air circulates inside the engine. 6. It has a larger application area. 7. It is easy to apply a reversible use. For instance a compressor can easily be converted to a machine receiving compressed air and become an air engine. There are enterprises (MDI) using compressed air for car engines. See animation (power point 1,3 Mb) |
