Tribometer Investigation of the Frictional Response of Piston Rings when Lubricated with the Separated Phases of Lubricant Contaminated with the Gasoline Engine Biofuel Ethanol and Water

2011 ◽  
Vol 43 (2) ◽  
pp. 107-120 ◽  
Author(s):  
P. R. De Silva ◽  
M. Priest ◽  
P. M. Lee ◽  
R. C. Coy ◽  
R. I. Taylor
Keyword(s):  
Gasoline Engine ◽  
Piston Rings

Improvement of Transient Heat Transfer Models for the Coupled 3-D Moving Piston Assembly-Liner System

2007 ◽  
Author(s):  
Yankun Jiang ◽  
Zhien Liu ◽  
Rolf D. Reitz ◽  
Zheling Dong ◽  
Xiaoming Ye
Keyword(s):  
Heat Transfer ◽  
Gasoline Engine ◽  
Sparse Matrix ◽  
Cylinder Liner ◽  
Heat Transfer Model ◽  
Transient Heat Transfer ◽  
Transfer Model ◽  
Piston Rings ◽  
Liner System ◽  
Piston Assembly

A transient heat transfer model for the coupling 3-D moving piston assembly-liner system has been successfully improved for predicting temperature distributions in the components of internal combustion engine chamber. In the model the effect of the 3-D friction heat generated at the piston ring/cylinder liner interfaces and the multi-dimensional lubricant film thickness between the piston rings and the liner has been taken into account. A directly coupled finite element method (FEM) is employed in the model for establishing the heat transfer relation among the moving piston assembly-cylinder liner components. A 3-D discrete model of the coupling system is formulated, which includes the piston rings, piston, liner and cylinder. Due to the complexity of the temperature stiffness matrix, a sparse matrix data structure is employed in the model to save the memory and calculation time. Finally, the 3-D coupling heat transfer model has been used to analyze heat transfer processes in a gasoline engine.

Wear, Performance and Emissions of a Two-Stroke Engine Running on Palm Oil Methyl Ester Blended Lubricant

1996 ◽  
Vol 210 (4) ◽  
pp. 213-219 ◽  
Author(s):  
H H Masjuki ◽  
M A Maleque
Keyword(s):  
Methyl Ester ◽  
Palm Oil ◽  
Gasoline Engine ◽  
Engine Performance ◽  
Lubricating Oil ◽  
Wear Behaviour ◽  
Exhaust Gas ◽  
Piston Rings ◽  
Gasoline Engines ◽  
Performance And Emissions

Results of study on wear of piston rings, engine performance and exhaust gas emissions of palm oil methyl ester (POME) as a lubricating oil additive in a two-stroke gasoline engine test are presented. Piston ring wear behaviour was monitored as a function of running time. The power output and brake specific fuel consumption of the engine were measured at different speeds. Varnish/lacquer and carbon deposit on the spark plug electrode, cylinder and piston heads as well as exhaust gas (CO2, CO and O2) emission were measured. For comparison purposes, two types of commercial lubricating oils, viz. oil A and oil B were used. The wear resistance of piston rings with POME blending lubrication was found to be greater than the pure commercial oil lubrication. Other results indicate that the POME acts as an additive which improves the engine performance and exhaust emissions of two-stroke gasoline engines.

EXERGY AND EXERGOENVIRONMENTAL ANALYSES OF A SPARK-IGNITION GASOLINE ENGINE

2020 ◽  
Author(s):  
Daniel R. s. Da Silva ◽  
Eduardo José Cidade Cavalcanti ◽  
monica carvalho
Keyword(s):  
Gasoline Engine ◽  
Spark Ignition

PID-LIKE FLC FOR FOUR CYLINDERS MEAN VALUE GASOLINE ENGINE MODEL IN IDLE MODE

2018 ◽  
Vol 09 (02) ◽  
pp. 114-130
Author(s):  
Mohammed Hassan ◽  
◽  
Muslim Abdali ◽  
Keyword(s):  
Gasoline Engine ◽  
Mean Value ◽  
Idle Mode ◽  
Engine Model ◽  
Four Cylinders

COPPER ALLOY No. C92800

Alloy Digest ◽  
1985 ◽  
Vol 34 (1) ◽  
Keyword(s):  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Copper Alloy ◽  
Heat Treating ◽  
Good Resistance ◽  
Piston Rings ◽  
Tin Bronze

Abstract Copper Alloy No. C92800 is a cast bronze containing nominally 16% tin and 5% lead. Former commercial names (not recommended) are (1) 295, (2) Leaded Tin Bronze, (3) Ring Metal and (4) 79-16-5-0. It has excellent machinability, moderate strength and good resistance to corrosion. A typical use is piston rings. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Cu-490. Producer or source: Copper alloy foundries.

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