Study on the Tribology of the Cylinder and Piston Ring of the Vehicle Diesel with Surface Roughness and Lubrication Oil

The friction and abrasion of the cylinder and piston ring of the vehicle diesel has been carried on experimentation research using oil analysis technology in order to improve the diesel running-in quality and shorten the diesel running-in time, and analyze the deferent lubrication oil and surface roughness of the diesel piston ring in order to find a way to reducing abrasion of them. The experiment proves that the machining precision of the piston ring will affect evidently the oil film formed of between the piston ring and cylinder. The critical load forming oil film is inverse ratio Ra of the piston ring. It has been proved that it is a effective method to monitor the friction and abrasion of diesel piston ring.