The course starts by explaining diaphragm, single and dual acting the two different types, dynamic and positive displacement and the difference between reciprocating compressor and rotary compressors. Next the ideal compression cycle (PV diagram) is discussed. The course continues with an in depth description of the components that make up a reciprocating compressor. The course moves on to explain suction and discharge pressure, speed and the limitations of each in the context of the forces acting on the components. Finally the lubrication system is explained.