FIELD: machine building.
SUBSTANCE: invention relates to propulsion engineering, namely, to supercharging devices of internal combustion engines. Device (1) of supercharging of internal combustion engine (2) comprises air intake (5), electric compressor (6) controlled by appropriate control device and configured to compress air coming from air intake (5), and heat exchanger (14) for cooling of compressed air leaving compressor (6). Cooled compressed air passes into intake manifold (3) of internal combustion engine (2). Supercharging device (1) also contains cooling circuit (41, 42) of electric compressor (6) and/or control device. Cooling circuit (41, 42) comprises pipeline (41) supplying air to electric compressor (6) and/or to control device passing between outlet (47) of heat exchanger (14) and electric compressor (6) and/or control device so to withdraw cooled compressed air. At that, recirculation loop additionally comprises air recirculation pipeline (42) passing between electric compressor (6) and/or control device and place nearby inlet collector (3) inlet (45). Also disclosed are supercharging device control method and motor vehicle.
EFFECT: improving cooling efficiency of electric compressor components.
12 cl, 2 dwg
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