At first glance, the concept of engine compression is simple enough:It's the ratio of the volume of the combustion chamber and bore when thepiston is at bottom dead center (BDC) versus when it is at ...
You might have heard about high compression ratios, but what exactly are they, and what kind of effect do they have on an engine's fuel efficiency?
What makes a diesel engine different to a regular gas engine, and is one better than the other?