A lower working temperature, compared with uni-polar compression, better energy saving isothermal compression with 8% energy could saved theoretically. The compression ratio of every level has been reduced to3:1,less inside leak and the volume efficiency has raised 15%.Be good to the rotor to get to the best line speed of 25m/s-30m/s to obtain the best compression transfer efficiency.
The air end uses a large rotor with a low rotate speed design, which contains two separate compression unit. The rotor adopts a new design of UV patent line type with more than twenty processes, which make sure the accuracy, reliability and effectiveness of the rotor line type. The level one compression rotor and the level two compression rotor are put in a same enclosure and are directly driven by bevel wheel respectively, which lets the rotor of each level reach to the best line speed so that the efficiency of compression transmission can reach to the best. The compression ratio of every compression level has been accurately designed to reduce the load of bearings and gears so that the life of the main engine can be prolonged. A patent lubricating oil system separates the oil supply of compression chamber and bearings, and the compression chamber uses lubricating oil of general cleanliness, while the bearings use lubricating oil of high cleanliness, which ensures the reliability of bearings.
To achieve the use of pressure in the 4bar to the rated pressure between the free conversion, and the corresponding volume of adaptive changes.
The key technology of the injection cooling is adopted to reduce the intake, temperature and reduce the energy consumption.