Principle is a positive displacement blower fan, there are two trefoil relative rotation of the impeller and the casing wall sealed space, due to Shandong Roots blower, each impeller is involute, or Epicycloid envelope impeller and processing lines, three for each of the impeller blades are identical, while the two impellers are also identical, thus greatly reducing the processing difficulty. Impeller in the processing of numerical control equipment to ensure that the two impellers in the center from the same situation next, no matter what position the two impeller rotation, can maintain a certain minimum clearance to ensure the gas leak within the allowable range. How it works: positive displacement blower fan, air volume delivered and the number of revolutions is proportional to the blower, clover-type impeller rotates once every two impellers by three times the suction and discharge, compared with two leaf type, gas pulsation fewer small load changes, high mechanical strength, low noise, vibration small. In the two-phase line shaft flat has two clover-type impeller, and always maintain a slight gap between the wheel and the oval hole in the chassis side and all three impellers, due to uniform rotation of the impeller opposite directions, so that the box and the impeller is surrounded by a certain amount of gas delivered to the suction side of the discharge side. Each branch has always maintained by the synchronization gear wheel correct phase, does not appear to touch each other and, therefore, can be high-speed, no internal lubrication blower manufacturers, wholesale blower and simple structure, stable operation, stable performance, adapt a variety of purposes, has been used in a wide range of fields. Roots blower manufacturers, blower, Zhucheng East Han Machinery Co., Ltd. is provided by the East Han Machinery Co., Ltd. Zhucheng. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) strong, credible, Shandong Weifang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East Han Machinery Co., Ltd. Zhucheng and you hand into the brilliant, for a better future! You can also access (www.dhlcfj.com/supply_details_38548235.html), for more information about the company.