Open AccessBench experimental research of cylinder oil on large marine diesel engines
Author(s) -
Jin Lin,
B X Wang,
Lijiang Wei
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1777/1/012040
Subject(s) - cylinder , diesel fuel , piston (optics) , test bench , oil analysis , piston ring , diesel engine , automotive engineering , marine engineering , position sensing hydraulic cylinder , fuel oil , piston rod , petroleum engineering , engineering , four stroke engine , cylinder head , environmental science , mechanical engineering , internal combustion engine , waste management , hydraulic cylinder , chemistry , combustion , ring (chemistry) , combustion chamber , physics , organic chemistry , wavefront , optics
To lower the risks of the real ship test of the cylinder oil of large marine low-speed two-stroke marine diesel engine, A 6S50ME marine diesel engine was selected to do bench test about cylinder oil. In the calibration condition, the test cylinder oil and the reference cylinder oil were compared. The test results show that the wear amount of cylinder liners, piston rings and piston-ring-grooves is consistent with the wear condition judged by the metal element content detected by the residual oil of the cylinder. At the same time, combined with the evaluation result of the detergency and dispersibility of the cylinder oil, it can effectively judge whether the oil product can be tested on the ship. Since wear volume of element Cr and Fe tends to the stabilization after 60 hours, so it is feasible to set the diesel engine bench test at 100 hours. In addition, special attention should be paid to the control of water outlet temperature and exhaust gas temperature in the test. The cylinder oil evaluated in the above way meets the requirements of OEM after the actual ship test. Thus, the assessment method of cylinder oil based on the bench test is feasible, and can greatly shorten the test time and reduce the test cost.