FIELD: power engineering; screw engines. SUBSTANCE: proposed sealing device of screw engine rotor has housing cover, and unloading disk installed on driving rotor to form high- pressure space. Sealing spaces are found in housing cover in places of its mating with unloading disk and output end of driving rotor. Sealing spaces are provided with axial cuts non coinciding in axial direction with each other. High-pressure space is formed by housing cover and unloading disk, and is connected by pipe with intermediate pair space formed by driving and driven rotors. EFFECT: provision of high reliability of functioning of screw engine driving rotor sealing device. 3 dwg
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