Orenburg: GOU OGU IPC, 2007. - 123 s. The lecture-practical course contains 5 sections, in which theoretical material and examples of calculations of injection machines (compressors) are presented. The first section presents the classification of compressor units, the second presents compressors and their place in the technological lines of chemical industries , in the third theory and examples of calculations of reciprocating compressors , In the fourth, the equipment of the compressor station is presented , the Fifth Operation of Compressor Stations . The methodological manual is intended for mastering the lecture-practical course in disciplines : "Ventilation plants and pneumatic transport", "Refrigeration equipment", "Extrusion machines" for students of the specialty "Machines and apparatuses of chemical industries", as well as "Machines and apparatuses of chemical industries" and "Food engineering of small enterprises" of all forms of training.