This section provides overview, applications, and principles of compressors. Also, please take a look at the list of 46 compressor manufacturers and their company rankings.
A compressor is a machine that compresses and pumps gas through the rotary motion of a rotor or the reciprocating motion of a piston.
Typical compressed gases include air, hydrogen, and refrigerants. Several methods have been developed to compress air, and selection is based on factors such as compression pressure and flow rate. When the compression pressure is ultra-high, the risk is extremely high, so it is important to pay close attention to safety.
Compressors are used in a wide range of applications, from home appliances to industrial equipment. The following are examples of applications.
When air is stored in compressors during times when electricity is low and used during times when it is high, it contributes to electricity cost savings.
Compressors can be broadly classified into "turbo type" and "positive displacement type.
The turbo type compresses air by giving it kinetic energy. It is further divided into centrifugal and axial flow types.
The positive displacement type compressor compresses by volume change. They are further divided into reciprocating and rotary types.
Compressors are often used to compress air. In addition, automatic tools are sometimes driven by compressed air from air compressors at construction sites. These automatic tools are called air tools. Depending on the air tool installed, multiple tasks can be automated with air.
Generally, modern compressors automatically control the pressure, but the procedure is as follows
A compressor is a piece of equipment that compresses and pumps air or process gas. Compressor oil (lubricating oil) is used to prevent wear and leakage of gases due to contact with the metal piston and screw. Oil should be selected according to the type of compressor.
The oil used in power machinery is specified by the international standard of viscosity ISO VG, according to the application, and the greater or lesser of this value indicates the degree of viscosity. Compressor oil for reciprocating compressors has a viscosity of about VG68, which is slightly high viscosity.
On the other hand, screw type compressors use low viscosity oil to reduce the load on the rotor. There are two main types of oil: mineral oil and synthetic oil. Synthetic oil is used in many compressors because it is less prone to deterioration than mineral oil. Compressor oil must also have excellent resistance to high temperature loading during compression, high temperature oxidation, and sludge derived from fine particles in the air.
*Including some distributors, etc.
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