%0 Journal Article %T Expected economic effect after installing variator for main engine cooling system pump %A Pokusaev, M.. %A Trifonov, A.. %A Ilyina, E.. %K marine converted engines, energy efficiency, cooling system, mounted pumps, pump variator %J Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies %D 2020 %N %P 7 %I Astrakhan State Technical University