The state of piston lubrication-has been determined with reference to piston friction force measured by our developed single-cylinder supercharged small bore diesel engine with a boost pressure of up to 150kPa. The result is that the state of lubrication deteriorates markedly immediately before the compression top dead center due to increased boost pressure and immediately after the compression top dead center due to increased engine load. Moreover, the crankshaft offset, piston pin offset and multi-grade oil further deteriorate piston lubrication with a boost pressure.
Volume Subject Area:
Lubrication and Friction
Topics:
Diesel engines,
Lubrication,
Pistons,
Pressure,
Compression,
Cylinders,
Engines,
Friction,
Stress
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Copyright © 2006
by ASME
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