1. Work is divided by type of power: can be divided into DC and AC motors. 1.1 DC motor according to the structure and working principle can be divided into: brushless DC motors and brush DC motors. 1.1.1 Brush DC motor can be divided into: permanent magnet DC motors and electromagnetic DC motor. 1.1.1.1 electromagnetic DC motor division: series DC motors, DC motors and Reed, he excited DC motor and re-excited DC motors. 1.1.1.2 permanent magnet DC motor division: rare earth permanent magnet DC motor, ferrite permanent magnet DC motor and aluminum-nickel-cobalt permanent magnet DC motor. 1.2 AC motor which can be divided: single-phase motors and three-phase motors. 2. According to the structure and working principle of division: can be divided into DC motors, induction motors, synchronous motors. 2.1 synchronous motor can be divided into: a permanent magnet synchronous motor, synchronous reluctance motors and hysteresis synchronous motor. 2.2 asynchronous motors can be divided into: AC induction motor and the motor commutator. 2.2.1 induction motor can be divided: three-phase asynchronous motors, single-phase asynchronous motors and shaded pole induction motors. 2.2.2 AC commutator motors can be divided into: single-phase series motor, AC and DC motors and repulsion motors. 3. Press Start and Run Division: capacitor start single-phase induction motor, capacitor run single phase induction motor, capacitor start single-phase induction motor running and split-phase single-phase induction motor. Screw compressor There are several important parameters, general These parameters determine the use of screw compressor too has his ability to work. Of course Cottle compressor oil, there are some introductory, such as shape size, and weight, etc., which is relatively less important and other parameters related to the ability to work screw compressor, in order to give customers more Learn more aware of good screw compressor, list them on the meaning of its parameters, for reference. 1. One of the parameters of this displacement is ultimately, also known as volumetric capacity, displacement is the called, refers to the volume of gas inside the discharge per unit time, the customer is to buy a screw compressor to use it to compress the gas in order to do some work, so this parameter is relatively important. And different screw compressors have different displacement. 2. The working pressure is called exhaust pressure, its meaning can be seen from the name, is the role of the maximum pressure of the exhaust gas compressor, screw compressor is compressed gases. Generally look at when selecting a machine, according to their own situation, is based on this to select different types of machine. 3. Motor power consumption generally refers to the power of the compressor, is matching the motor. The unit is Kw, general industry people are used to refer to the specific parameters of the machine, is one of the very commonly used parameters. 4. Cooling air compressor when the general working temperature inside the machine are very high-known manufacturer of air compressors, high-speed rotation of the rotor, the naturally generate heat, so they need to cool, otherwise the machine will burn out the compressor, general The cooling method is air-cooled and water-cooled, general minicomputer, air line, and neutral words Cottle air compressor, air can be cooled, large machines, the general is water cooled. 5. This means that the noise screw compressor noise generated when at work, general unit dB (A). 6. screw compressor outlet diameter refers to the size of the trachea, of different sizes with different sized machine will exit diameter Cottle compressor oil, air compressor, air compressor provided by Xianyang Qin Wei Qin Wei Compressor Co., Ltd. . Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) strong, credible, Xianyang in Shaanxi compression, separation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Qin Wei Air and you hand into the brilliant, for a better future!