My question relates to the lubrication of cylinder walls and piston rings. It is my understanding that pistons in cars consists of 3 rings; two compression rings and the oil/scraper ring.
As far as I've read, the cylinder walls are only lubricated by the jet of oil coming out of the connecting rod holes, and any excess oil is primarily scraped off the walls by the oil ring (consisting of 2 small rings and a center bent shape ring - correct?)
If I'm correct on this, it seems intuitive to me that oil would never reach the compression rings as it is scraped by the oil ring sitting beneath it.
How is the compression ring then lubricated and kept from scoring the walls?