TY JOUR TI ABOUT INFLUENCE OF THE WAVE PHENOMENA IN HIGHWAYS TO WORK OF PISTON COMPRESSORS KW piston compressor KW pressure fluctuation KW losses of energy KW jump of pressure KW suction highways KW process of filling KW coefficient of filling JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Kuzmin, A.A. AU Romanov, N.N. PY 2019 IS 2019 PB Saint-Petersburg University of State Fire Service of Emercom of Russia