"Tiny Cooling Fan" is to rely on the input of mechanical energy, improve the feed side gas pressure of a gas driven fluid machine. Right-handed and left-handed can be made of two types, a front wheel clockwise rotation from the motor side, known as the right rotation fan, counter-clockwise rotation, called L. "Tiny Cooling Fan" works with turbine compressor is basically the same, but due to the low gas flow rate, pressure changes little, generally do not need to consider changes in specific volume of gas that the gas as in compressible fluid handling. Newly installed cooling fan air flow will be too large, occurs in the "Tiny Cooling Fan" new installation starts formal operation, or use of too large or too small, can eliminate one of the following methods: Change the cooling fan speed to regulate the flow . By adjusting the degree of opening and closing the door to regulate the flow. Change the pipe network resistance coefficient adjust the flow. Higher or lower exchange pressure regulate the flow of cooling fans.