TY JOUR TI Increasing energy efficiency and environmental safety of reciprocating engines KW energy efficiency KW ecological safety KW thermodynamic cycle KW working process KW heat energy KW cylinder pressure KW heat insulation JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Kargin, S.. AU Dorokhov, A.F. PY 2019 IS PB Astrakhan State Technical University