FIELD: engines and pumps.
SUBSTANCE: invention is designed for application in all types of pneumatic devices, for instance, engines and tools, control of which is realised by means of air or any other gas. Device for pneumatic control of tool comprises closed circuit (2) for fluid medium under pressure, at least, one compressor (5) intended for increase of pressure in fluid medium available in circuit and having inlet (4) and outlet (3), and also tool actuated pressurised fluid medium available in circuit, which is transported in circuit from outlet (3) to inlet (4) of compressor. Pressure created by compressor (5), and load of tool (8) are controlled so that in place located in flow downstream tool (8), return motion in circuit exceeds pressure of environment. Circuit comprises return pipeline (10), at that heat exchanger (17) is used for cooling of fluid medium under pressure available in return pipeline (10).
EFFECT: reduction of heat losses, provision of reduced consumption of air energy using compressor of comparatively low capacity.
4 dwg, 8 cl
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