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What is the relationship between temperature and the compressor? The degree of hotness or coldness of an object is called temperature (heat). From the law of conservation of energy, we know that work and heat can be converted into one another; the increase in temperature throughout the compressor is resulting from the conversion of mechanical frictional work and compression work. For example, improper assembly of the bearing shells or inadequate lubrication will increase the frictional work, which is then dissipated in the form of heat; as a result, the temperature of the bearing shells rises, and in severe cases they may even burn out. Therefore, the quality of the machine can be determined by examining the temperatures in various parts of the compressor. High and low ambient temperatures as well as oil temperatures have the following effects on the compressor: 1. An excessively high temperature of the intake gas reduces the exhaust volume ； 2. If the gas temperature is too high during compression, it will increase power consumption and reduce productivity ； 3. Excessively high cylinder temperatures can cause the lubricating oil in the valves and piston rings to coking, thereby losing its lubricating effect; this increases the risk of explosion when exposed to sparks. It also leads to poor performance of components such as piston rings, valves, and gaskets, resulting in increased wear and poor sealing ； 4. Excessively high temperatures can damage the bearings, and the bearing shells may even stop functioning ； 5. Overheating of other components can reduce mechanical strength or even cause deformation ； 6. Excessively high lubricant temperature reduces the viscosity of the oil and lowers oil pressure, thereby affecting the lubrication efficiency ； 7. An excessively high cooling water temperature will reduce the cooling effect ； 8. Excessively high temperatures in electric motors and internal combustion engines can also pose a risk of burnout. However, the temperature cannot be too low either; if the temperature of the cooling water drops below 0 degrees, it will freeze, which will disrupt the circulation of the cooling water and may even damage the machine. If the lubricant temperature is too low, the viscosity of the oil increases, which hinders lubrication. If the temperature is too low, it is also difficult to start the internal combustion engine, and so on. Therefore, we determine whether the compressor is operating properly by observing temperature changes, and we keep temperatures within specified ranges to ensure the proper functioning of the equipment; this is an important aspect that compressor operators must master.