A gasoline piston engine that can dynamically change its compression ratio —that is, the amount by which the piston squeezes the fuel-air mixture in the cylinder—has long been a holy grail of engine ...

Four-stroke diesel engines operate in a similar fashion to their petrol counterparts, but there are a few major differences worth knowing about... Most conventional automotive diesel engines make use, ...

Apart from the very curious, not many people ask why diesel engines, compared to gasoline, run higher compression ratios. The argument is reasonably straightforward and starts with fuel ...

Detroit Diesel has produced many classic engines, but the "Screaming Jimmy" two-stroke is likely the one with the most ...

Any certified gearhead knows that diesel engines do not use spark plugs. But why not? If power in an engine is created by combustion or explosion of flammable liquids, won't a spark plug in a diesel ...

Compression ignition basically is the term that is used for describing the manner in which diesel engines function. It happens when intake air—which often is combined with recirculating exhaust gas—is ...

October 3, 2005 It has been a sudden realisation - the world is running out of oil and the laws of supply and demand are set to make petrol prohibitively expensive in the very near future. Sonex ...

Four-stroke diesel engines operate in a similar fashion to their petrol counterparts, but there are a few major differences worth knowing about... Most conventional automotive diesel engines make use, ...