Translation and analysis of words by ChatGPT artificial intelligence
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What (who) is hermetic compressor - definition
![refrigerant]]. There is no route for gases to leak, such as around motor shaft seals. On this model, the plastic top section is part of an [[auto-defrost]] system that uses motor heat to evaporate the water.](https://commons.wikimedia.org/wiki/Special:FilePath/Lednička Zanussi ZRA 319 SW, kompresor s odpařovací miskou (002).JPG?width=200 "refrigerant]]. There is no route for gases to leak, such as around motor shaft seals. On this model, the plastic top section is part of an [[auto-defrost]] system that uses motor heat to evaporate the water.")
Wikipedia
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor.
Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. The main distinction is that the focus of a compressor is to change the density or volume of the fluid, which is mostly only achievable on gases. Gases are compressible, while liquids are relatively incompressible, so compressors are rarely used for liquids. The main action of a pump is to pressurize and transport liquids.
Many compressors can be staged, that is, the fluid is compressed several times in steps or stages, to increase discharge pressure. Often, the second stage is physically smaller than the primary stage, to accommodate the already compressed gas without reducing its pressure. Each stage further compresses the gas and increases its pressure and also temperature (if inter cooling between stages is not used).
