TY JOUR TI PERFORMANCE ROTARY MACHINES WITH VARIABLE SECTION CHAMBER KW processing line KW performance KW camera variable cross-section KW process KW design KW mechanism JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Dubinin, N.N. AU Mihaylichenko, S.. AU Ural'skaya, L.S. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov