空气压缩机（空压机）的种类很多。
There are many kinds of air compressors.
1、按工作原理可分为三大类：容积型、动力型（速度型或透平型）、热力型压缩机。
1. According to the working principle, it can be divided into three categories: volumetric type, dynamic type (speed type or turbine type) and thermal type compressor.
空压机分类
Classification of air compressor
空压机分类
Classification of air compressor
2、按润滑方式可分为无油空压机和机油润滑空压机。
2. According to the lubrication mode, it can be divided into oil-free air compressor and oil lubricated air compressor.
3、按性能可分为：低噪音、可变频、防爆等空压机。
3. According to the performance can be divided into: low noise, variable frequency, explosion-proof air compressor.
4、按用途可分为：冰箱压缩机、空调压保定平面设计培训 保定空调维修 保定管道通风 包装盒定做 化粪池模具 废旧电缆回收 不锈钢铸件 缩机、制冷压缩机、油田用压缩机、天然气加气站用、凿岩机用、风动工具、车辆制动用、门窗启闭用、纺织机械用、轮胎充气用、塑料机械用压缩机、矿用压缩机、船用压缩机、医用压缩机、喷砂喷漆用。
4. It can be divided into refrigerator compressor, air conditioning compressor, refrigeration compressor, oil field compressor, natural gas filling station, rock drill, pneumatic tool, vehicle brake, door and window opening and closing, textile machinery, tire inflation, plastic machinery compressor, mining compressor, marine compressor, medical compressor, sand blasting and painting.
5、按型式可分为：固定式、移动式、封闭式。
5. According to the type, it can be divided into fixed type, mobile type and closed type.
容积式压缩机——直接依靠改变气体容积来提高气体压力的压缩机。
Positive displacement compressor -- a compressor that directly depends on changing the gas volume to increase the gas pressure.