空压机全称空气压缩机（英文为：air compressor），是气源装置中的主体，它是将原动机（通常是电动机）的机械能转换成气体压力能的装置，是压缩空气的气压发生装置。
The full name of air compressor is air compressor. It is the main body of air source device. It is a device that converts the mechanical energy of prime mover (usually motor) into gas pressure energy. It is the air pressure generator of compressed air.
空气压缩机的种类很多，按工作原理可分为容积式压缩机、往复式压缩机、离心式压缩机。
There are many kinds of air compressors. According to the working principle, they can be divided into positive displacement compressor, reciprocating compressor and centrifugal compressor.