Lubrication of cylinders between liners and rings is one of the crucial factors that affects the efficient operation of diesel engines. Marine diesel engines usually use inferior heavy fuel oil with high sulphur content, and the acidic substances formed by fuel combustion need alkaline cylinder oil to neutralize. For the operational cost to a marine engine, besides fuel oil, cylinder oil also takes a big share. This article first analyses the advantages and disadvantages of existing cylinder lubrication systems with regard to oil injection control. Second, the control parameters and variables such as the oil injection pressure, timing, oil feed rate and reliability are analysed, and the corresponding control schemes formulated. Third, the control strategies are developed in detail. Finally, verification tests are carried out on an actual engine, with the results showing that the control strategies developed in this article provide a stable, cost-effective, creative and excellent solution for cylinder lubrication with reduced cylinder wear. A thin and uniform oil film distribution is retained on the liner surface, with savings in cylinder oil consumption, lower particulate matter emission levels and improved cylinder liner and piston rings running conditions. The experimental results show that the oil consumption could be reduced by up to 50%.
WoodyardD. Introduction: a century of diesel progress. In: WoodyardD (ed.) Pounder’s marine diesel engines and gas turbines. 9th ed.Oxford: Butterworth-Heinemann, 2009, pp.ix–xxvii.
2.
ChenSGZhuGWLiYZShaoZ. The marine engineering manual. Beijing: The People’s Communication Press, 1992, pp.21–32.
3.
ChewFMcGearyT. Study of the relationship between cylinder lubricant drain condition and performance parameters of 2-stroke cross-head engines. Hamburg: CIMAC, 2001.
4.
ZhangXM. An electronically controlled cylinder lubrication system applied to main engine in an actual ship. Chin Ship Surv2010; 8: 54–55.
5.
GaoBZhaoZQ. Application research and development trend analysis of cylinder lubrication technology for marine diesel engine. Energy Conserv Environ Prot Transp2010; 4: 9–12.
6.
ZhengGJCaiZXLiuJH. Analysis of cylinder lubrication technology of marine diesel engine. Tianjin Navig2009; 1: 11–14.
7.
ZhaoJS. Adjustment of cylinder oil for MAN B&W K90MC-C main engine. Mar Tech2008; 1: 53–56.
8.
HeYH. Research on control strategy of electronically controlled cylinder lubrication system for marine diesel engine. J Wuhan Univ Technol2010; 32(15): 114–118.
9.
GaoB. Simulation and driving torque experimental research on the electronically controlled cylinder lubricator. MSc Thesis, Wuhan University of Technology, Wuhan, China, 2009.
10.
ChenZJ. Development and experimental research on new cylinder oil lubrication system for marine large low-speed two-stroke diesel engine. PhD Thesis, Wuhan University of Technology, Wuhan, China, 2015.
11.
ZhengWK. Analysis of cylinder oil management from scavenging box fire in the initial stage of main engine operation. Mar Tech2009; 1: 63–64.
12.
XuGX. A method for reducing the cylinder oil consumption rate for Alpha cylinder lubricator. Mar Tech2016; 5: 42–44.
13.
HeYH. Study on cylinder lubrication technology for marine engine. China Ship Repair2010; 23(4): 5–8.
14.
ZhangCDZhangDZ. Adjustment and analysis of cylinder oil feed rate for Alpha electronically controlled cylinder lubricator. China Water Transp2014; 2: 141–143.
15.
WuQSHanQC. A failure example of a cylinder lubricator for the diesel engine. Mar Tech2016; 2: 50–52.
16.
SuZL. Study on cylinder liner wear and cylinder oil control. Mar Energy Sav2002; 1: 33.
17.
BaoJH. An analysis of the irregular operation of indicating projectile for a main engine cylinder lubricator. Diesel Engine2017; 2: 51–52, 55.
18.
YaoSXuJ. Introduction to the practical use of ALPHA electronically controlled cylinder lubricator. Mar Tech2006; 3: 50–52.
19.
MohamadSALuXZhengQ. Numerical modeling of lubrication of piston ring of two-stroke marine diesel engine considering the effect of multi-scale grooves on the cylinder liner. Proc IMechE, Part J: J Engineering Tribology2015; 229(8): 989–1002.
20.
ChenZ. Fundamentals and management of CLU-4 pulse feed lubrication system. Pearl River Water Transp2014; 12: 8–9.
21.
LingGYDengJX. New generation of electric impulse cylinder lubrication system. Mechanical Electr Equip2013; 30(5): 64–67.
22.
GaoB. Alpha ACC electronically controlled cylinder lubrication system and its application. Mar Tech2012; 4: 48–51.
23.
YangYJLiFH. Analysis of the advantages of an electronically controlled cylinder lubricator refitted on marine diesel engine. J Qingdao Ocean Shipp Mar Coll2013; 3: 13–15, 31.
24.
LuLGaoB. Study on the control mechanism of electronic cylinder lubricator oil injection frequency modulation. Ship Ocean Eng2010; 39(1): 78–79, 83.
25.
HeYHLiMWangQP. Study on optimal design and practical use of an electronically-controlled cylinder lubricating system. Chin Intern Combust Engine Eng2016; 37(4): 234–240.
26.
HeYH. Research on new electro-controlled cylinder lubrication system for large low-speed marine diesel engine. Chin Intern Combust Engine Eng2010; 31(4): 63–68.
27.
HeYH. Research on calibration tests of an electronically controlled cylinder lubrication system for a large low-speed marine diesel engine. J Harbin Eng Univ2011; 32(4): 411–416.
28.
ChenZJWuDW. Development of electronic control system for cylinder lubricator. Navig China2012; 2: 20–23, 28.
29.
ChenZJ. Design of electronic control system of cylinder lubricator for marine two-stroke engine. J Wuhan Univ Technol2010; 32(15): 95–98.
30.
MAN B&W Diesel A/S. Alpha adaptive cylinder-oil control Alpha ACC. Hamburg: CIMAC Circle SMM, 2002.
31.
CaiGH. Abnormal wear analysis of the piston rings and cylinder liner caused by improper oil-injection quantity. Mar Technol2012; 5: 55–57.
32.
ShiQHShanGY. A failure analysis of ALPHA electronically controlled cylinder lubrication system. Mar Technol2012; 3: 54–58.
33.
WangWF. An important parameter that cannot be ignored in ALPHA electronic lubricator. Mar Tech2011; 1: 52–53.
34.
LiGW. A brief fault analysis of ALPHA electronically controlled cylinder lubrication system for marine engine. Navigation2012; 5: 67–69.
35.
RenBK. Analysis and disposal measures for several minor faults in the newly installed Alpha ACC cylinder lubrication system. China Water Transp2010; 11: 121–122.
36.
HuG. Management and improvement of Alpha electronic lubricator. J Qingdao Ocean Shipp Mar Coll2016; 2: 46–49.
37.
YangXMLuYJ. A failure case of ALPHA electronically controlled cylinder lubricator. Mar Technol2015; 3: 50–51.
38.
WangLHWangWLLiangH. Analysis of no-flow alarm failure for an electronically controlled cylinder lubricator. Mar Tech2014; 5: 47–48.
39.
XiongSFGaoB. Common fault diagnosis and troubleshooting of ALPHA electronically controlled cylinder lubricator. Mar Tech2014; 5: 56–60.
40.
YanWZhuYX. Management and troubleshooting of Alpha cylinder lubrication system. J Nantong Shipp Coll2010; 4: 26–28.
41.
QiWZ. Fault analysis of an electronically controlled cylinder lubrication system with low oil pressure and high oil temperature. Mar Tech2014; 2: 57–61.
42.
ZhouJDongJ. Analysis of an alarm failure of the high temperature for ALPHA electronically controlled cylinder lubrication system. Mar Tech2012; 3: 50–51.
43.
UsmanAParkCW. Modeling and simulation of frictional energy loss in mixed lubrication of a textured piston compression ring during warm-up of spark ignition engine. Int J Engine Res2017; 18(4): 293–307.
44.
MengXHGuCXXieYBLiWX. A two-dimensional starved lubrication analysis method for textured surfaces. Int J Engine Res2016; 17(10): 1062–1076.
45.
GuCXMengXHXieYBZhangD. The influence of surface texturing on the transition of the lubrication regimes between a piston ring and a cylinder liner. Int J Engine Res2017; 18(8): 785–796.
46.
MAN B&W Diesel A/S. Cylinder lubrication update/guiding ACC feed rate for Alpha lubricator and ME lube. Service Letter SL09-507/HRR, April2009. Copenhagen: MAN Diesel.
47.
MAN B&W Diesel A/S. Cylinder lubrication/new ACC guidelines for all MC, MC-C and ME type engines with Alpha ACC system. Service Letter SL07-479/HRR, June2007. Copenhagen: MAN Diesel.
48.
MAN B&W Diesel A/S. Replacement of transparent polycarbonate covers. Service Letter SL2012-558/CHL, March2012. Copenhagen: MAN Diesel.
49.
LinC-Y. Reduction of particulate matter and gaseous emission from marine diesel engines using a catalyzed particulate filter. Ocean Eng2002; 29(11): 1327–1341.
50.
ShuGQDongLHLiangXY. A review of experimental studies on deposits in the combustion chambers of internal combustion engines. Int J Engine Res2011; 13(4): 357–369.
51.
StolarskiTAZhouQSmartMGreenDAllenRW. Temperature-friction characteristics of cylinder lubrication in large, slow, cross-head marine diesel engines under boundary lubrication conditions. Lubr Sci2004; 16(4): 337–346.
