RUDN Journal of Engineering ResearchRUDN Journal of Engineering Research2312-81432312-8151Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)4758Research ArticleOpportunities to economize of naphtha-diesel fuel by mean of partial replacement it by alternativePatrakhaltsevN NThe Department of Heat Engineering and Heat Enginesferrymanworker@yandex.ruPetrunyaI AThe Department of Heat Engineering and Heat Enginesferrymanworker@yandex.ruKamishnikovR OThe Department of Heat Engineering and Heat Enginesferrymanworker@yandex.ruSavastenkoE AThe Department of Heat Engineering and Heat Enginesferrymanworker@yandex.ruPeoples’ Friendship University of Russia150420144727707092016Copyright © 2014,2014The article dials with usage of such alternative fuels as liquid naphtha gas, alcohol etc. with bad qualities of inflammability, low cetan numbers. The perpose of using some alternative fuels is to minimize the soot in escape gases and to economize the diesel fuel. For rising of a share of alternative fuel in summing injected fuel there used a system of disconnection of cylinders or cycles.dieselregimes of low loadcut-off of cylinders and cyclesalternative fuelsдизельальтернативное топливосжиженный нефтяной газспиртотключение цилиндров или циклов