Principle is a positive displacement blower fan, there are two trefoil relative rotation of the impeller and the casing wall sealed space, due to Jinan 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. Roots blower structural characteristics: 1, blower case of the use of volumetric rotary blowers, as the pressure of change, the flow rate conversion is very small, but with the speed of the flow field and thus transform Shandong Roots blower, the pressure of the resolution. very wide, the resolution can be obtained by resolution flow speed and the need to reach. 2, the impeller in the body to run without friction, does not require smooth, so the gas is not oil strife. is the chemical Henan blower, food, transport and other industrial ideal strength steam source. 3, high blower speed, small errors in the rotor and the rotor, the rotor and between the body, so little leak, the higher volume effect. I told the assembly plant processing skills and strength, to guarantee fair errors, symmetry, both reach a higher volume effect also does not cause thermal expansion of the four internal body structure blower resolution mechanical friction and consume very little friction. Since only an institution bearing contact with the gear pair in the selection, rotors, ring gear housing with sufficient mechanical strength. run insurance, long life is a major feature of the factory blower products. Henan Roots blower, Zhucheng East Han Machinery Co., Ltd. (certified), Roots Fans are provided by Zhucheng East Han Machinery Co. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) is an industry leader in Shandong Weifang, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Zhucheng East Han Machinery Co. led the staff warmly welcome all inquiries negotiations to create Zhucheng East Han Machinery Co., a better future.