It is the use of variable pump speed rotation of the rotor to transfer momentum to the gas molecules variable pump specializing., So as to obtain the orientation variable speed pump, so as to be compressed, is driven towards the exhaust port of the preceding stage is drawn away after a vacuum pump. This pump concrete can be divided into: 1) the traction molecular pump rotor and high-speed movement of gas molecules collide and get momentum variable pump maintenance, is driven to the outlet of the pump. 2) turbo molecular pump by high-speed rotation of the rotor blades and the stationary blade with each other to achieve a given pumping. Such pumps are typically operate at the molecular flow state. 3) It is composed of complex molecular pump turbo molecular pump and traction type two series combination of a complex type of molecular pump variable pump and variable motor speed control loop is often composed of volume used in hydraulic system of open and closed loop in. Volume loop speed control circuit by changing the pump or hydraulic motor to achieve the speed of displacement. Its main advantage is a small power loss (no overflow losses and throttle loss) and the working pressure varies with the load, so that a high efficiency, low temperature of the oil, especially for high-speed, high-power systems. Variable pump specializing |. Jing Chong hydraulic (certified) | Variable pump from Jinan Jing Chong hydraulic machinery Limited. Jinan Jing Chong Hydraulic Machinery Co., Ltd. (www.jnjcyy.com) (www.jnjcyy.com) Shandong Jinan, mining machinery leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. In the crystal to create a hydraulic leadership with the staff warmly welcome all inquiries negotiations to create the crystal to create a better future for the hydraulic.