Displacement reduced by 1. Decrease in oil displacement has a direct relationship with the lack of oil. Once we compressor rental brand in production, reduced displacement compressor appeared failure, not only can not make the press roller down, and accompanied by some Knocking sound. We first air muffler checked and be cleaned, and then observe the oil level and found that the oil level is lower than 1/3 of the oil standard position, immediately filling the same brand of oil, and then turn on the power switch, test drive, or have percussion. Later, parts of sports bodies crankshaft, connecting rod, piston, cylinder 11 open, it was discovered that the crankshaft had a crack, see fast break, and presumably short of petroleum has been for some time. Due to lack of oil, dry friction occurs moving parts, overload operation so that all parts are damaged to varying degrees. We damage the moving parts cleaning, polishing, serious replacement, re-install, test machine, Knocking sound disappeared, displacement is also normal. It shows that oil is absolutely indispensable, otherwise endless trouble. Compression principle (1) the process of breathing: the motor drives the rotor, Lord, from the red rotor groove space go to the inlet opening in the end wall, the space, which is full of outside air compressor brands, when the intake rotor When the shell-side end face turned away from the inlet, the air between the tooth groove is closed in the main, from between the rotor and the casing, complete the process of breathing. (2) compression process: at the end of inspiration, Lord, enclosed volume peak from the rotor teeth and the casing is formed with the change of angle of the rotor is reduced, according to a spiral movement, this is "the compression process." (3) and the compressed gas injection process: during transfer, decreasing the volume of the gas continue to be compressed, the pressure increase, the temperature increases, at the same time, due to the pressure difference becomes mist lubrication is injected into the compression chamber, whereby achieve compression and reduce the discharge temperature of the seal lubrication effect. (4) Exhaust process: when the tooth peak enclosed rotor is rotated to meet with the cabinet exhaust port, the compressed air begins to discharge until the tooth peaks coincide with the tooth surface grooves to move large air compressor discharge end face brand In this case tooth groove space zero discharge process is complete. At the same time oil-free air compressor brand, the main rotor from the other tooth ditch has been rotated to the intake port formed the largest space to begin the process of breathing, which began a new compression cycle. Lianyungang Qin Wei Air compressor brand _ _ air compressor brand quotes provided by Compressor Co., Ltd. Xianyang Qin Wei. Xianyang Qin Wei Compressor Co. (www.xykyj.cn/) is Xianyang, compression, separation equipment leader, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Qin Wei Pneumatic leadership with the staff warmly welcome all inquiries negotiations to create Qin Wei Pneumatic better future.