When comparing engine specs for nearly any combustion engine automobile, we see a number of variations available with differing outputs of horsepower and torque. We often have a choice of gasoline or ...

Over the past year, I've driven more than two dozen SUVs and something became immediately apparent: their engines are much smaller than they used to be. Ford kicked off the current wave of engine ...

A schematic illustration of the biochemical heat engine model that achieves maximum power while approaching Carnot efficiency. The left panel shows the two-state engine, where the higher energy state ...

Researchers studying a hydrogen combustion concept built around argon gas say the technology could reach 60% thermal efficiency while matching the power output of a conventional diesel engine. The ...