We all know diesel engines produce Earth-moving torque to ... it will stop "running away" if you cut off the air supply, which is easier said than done when you're dealing with a semi, a diesel ...

ANY one who has seen a large triple expansion marine engine ... heated air, and continues ;o burn until the oil is cut off at about one-quarter to one-third of the down stroke of the piston.

But it also means that mixing the fuel and air can be tricky, which is why diesel engines have specially-shaped pistons. A diesel engine's piston head looks like someone took a scoop out of the top.

We’re introduced to the traditional two-stroke diesel engine as ... The free piston engine, a design with opposed pistons working against compressed air springs and combining both compression ...