The Autopian on MSN

One of GM’s most complicated engines had no crankshaft, four pistons, two cylinders, a turbine, and could run on whale oil

Automotive history is full of dead ends that eventually get lost to time. Seventy years ago, the free-piston engine was ...
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Piston rings & blowby - explained

How do piston rings work? What is blowby? Why are there three piston rings? What do each of the piston rings do? Typically there are three piston rings, and they serve three major purposes. They keep ...