scholarly journals Numerical calculation of coolant flow around cylinder liner in heavy duty diesel engine.

1988 ◽  
Vol 8 (30) ◽  
pp. 219-222
Author(s):  
Yoshihide Takenaka ◽  
Yuzo Aoyagi ◽  
Isao Joko
Keyword(s):  
Numerical Calculation ◽  
Diesel Engine ◽  
Cylinder Liner ◽  
Coolant Flow ◽  
Heavy Duty ◽  
Flow Around Cylinder ◽  
Heavy Duty Diesel Engine ◽  
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

Texture-induced effects causing reduction of friction in mixed lubrication for twin land oil control rings

2017 ◽  
Vol 232 (2) ◽  
pp. 166-178 ◽  
Author(s):  
Markus Söderfjäll ◽  
Roland Larsson ◽  
Pär Marklund ◽  
Andreas Almqvist
Keyword(s):  
Numerical Simulation ◽  
Diesel Engine ◽  
Major Part ◽  
Cylinder Liner ◽  
Mixed Lubrication ◽  
Heavy Duty ◽  
Cavitation Model ◽  
Heavy Duty Diesel Engine ◽  
Liner Surface ◽  
Heavy Duty Diesel

Piston rings are responsible for a major part of the frictional losses in a heavy-duty diesel engine. Such losses can be reduced by applying texture, such as dimples, on the cylinder liner surface. This paper investigates the effect of such texture on the friction between a land of the oil control ring and a textured cylinder liner via numerical simulation. A simulation model considering inertia and mixed lubrication together with a mass-conserving cavitation model is developed. The model is used to determine the dimple parameters that yield the lowest amount of friction for a specific oil control ring of a heavy-duty diesel engine.

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