scholarly journals Simulation Study for Engine Friction Reduction through the Enhancement of Temperature Distribution along Cylinder Liner in a Heavy Duty Diesel Engine

2012 ◽  
Vol 16 (6) ◽  
pp. 11-18
Author(s):  
S.Y. Park
Keyword(s):  
Diesel Engine ◽  
Temperature Distribution ◽  
Simulation Study ◽  
Cylinder Liner ◽  
Friction Reduction ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Engine Friction ◽  
Heavy Duty Diesel

Tribological assessment of NiCr, Al2O3/TiO2, and Cr3C2/NiCr coatings applied on a cylinder liner of a heavy-duty diesel engine

2020 ◽  
pp. 146808742093016
Author(s):  
Onur Biyiklioğlu ◽  
Mustafa Ertunc Tat
Keyword(s):  
Cast Iron ◽  
Diesel Engine ◽  
Wear Rate ◽  
Gray Cast Iron ◽  
Cylinder Liner ◽  
Gray Cast ◽  
Economic Evaluations ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Internal combustion engines consume about 90% of fuel refined from crude oil which supplies 30% of the annual global flow of energy. Heavy-duty diesel engines are the primary source of power used in highways, marine, railroads, and power stations. The right coating can improve the tribological properties of cylinder liners and increase the mechanical efficiency of an engine. Also, it can help to extend the maintenance periods, and enhance the reliability of the vehicles. In this research, tribological and economic evaluations were performed for coated and uncoated substrates from a cylinder liner of a heavy-duty diesel engine, aiming to lower friction, wear rate, and maintenance cost. A reciprocating friction test was conducted under dry condition using Wolfram carbide (tungsten carbide) ball applied a 10 N normal load on a ball on disk geometry. The cylinder liner was made of gray cast iron, and the substrates obtained were coated with three different coating materials (Cr3C2/NiCr, NiCr, and Al2O3/TiO2) through the thermal spray and high-velocity oxy-fuel coating process. Tribological evaluations showed that the substrates coded with Al2O3/TiO2 and Cr3C2/NiCr had the lowest friction coefficient and wear rate. The most economical coating was Al2O3/TiO2, being able to supply about 61% lower coefficient of friction and 94% less wear rate relative to the uncoated sample, for the price of one-third of the Cr3C2/NiCr coating and one half of a new gray cast iron cylinder liner.

Diesel Fuel Sulfur and Cylinder Liner Wear of a Heavy-Duty Diesel Engine

1987 ◽  
Author(s):  
E. K. J. Weiss ◽  
B. B. Busenthuer ◽  
H. O. Hardenberg
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Cylinder Liner ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Numerical Simulation Study of Carbon Build-up and Oil Consumption in a Heavy Duty Diesel Engine

2012 ◽  
Vol 5 (3) ◽  
pp. 1477-1486 ◽  
Author(s):  
Walter Zottin ◽  
Pedro Vitor Bacchin ◽  
André Ferraro Garcia
Keyword(s):  
Numerical Simulation ◽  
Diesel Engine ◽  
Simulation Study ◽  
Heavy Duty ◽  
Oil Consumption ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

Accurate Specific Fuel Consumption Measurement and its Application on Piston Friction Reduction for a Heavy-Duty Diesel Engine

2011 ◽  
Author(s):  
Yu Chen ◽  
Carol Lynn Deck
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Fuel Economy ◽  
Combustion Engine ◽  
Specific Fuel Consumption ◽  
Friction Reduction ◽  
Heavy Duty ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel ◽  
High Level

In recent years the attention of the internal combustion engine industry has been on improving fuel economy. These changes not only decrease the amount of fuel used and improve the efficiency of the engine, but also save the end-user on fuel costs, reduce engine emissions, and aid in the achievement of future government fuel economy regulations. An approach to decreasing fuel consumption is through improvements to engine mechanical and thermal efficiency. MAHLE has developed a testing method to accurately measure engine specific fuel consumption (SFC). SFC is an indicator of engine efficiency, hence it is directly effected by a reduction in friction. Since changes in SFC are small, considerable precision was required to measure it. To achieve this high level of accuracy key engine parameters were controlled along with boundary parameters. This study utilized a firing heavy-duty diesel engine running on a dynamometer. Results are presented to depict the repeatability of the technique over speed and load.

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