Tractors and Agricultural MachineryTractors and Agricultural Machinery0321-44432782-425XEco-Vector6948310.17816/0321-4443-69483Improving the methods of experimental research of friction units of cylinder-piston groupKochenovV ANizhny Novgorod State Agricultural Academy-GoyevaV VNizhny Novgorod State Engineering-Economic Institute-GrishinN YeNizhny Novgorod State Engineering-Economic Institute-KazakovS SNizhny Novgorod State Engineering-Economic Institutecheriraida@mail.ruNizhny Novgorod State Agricultural AcademyNizhny Novgorod State Engineering-Economic Institute15082012798404130042021Copyright © 2012, Kochenov V.A., Goyeva V.V., Grishin N.Y., Kazakov S.S.2012Results of study of internal cylinder gas pressure change in internal combustion engines are given. An improved method for the measuring of diesel engines' compression is presented.compressionlubricationrotation frequency of crankshaftcarbon deposits in combustion chambercompression ratioкомпрессиясмазываниечастота вращения коленчатого валанагар в камере сгораниястепень сжатия