Every internal combustion engine needs oil for lubrication, but two-stroke engines take their oil regularly along with ...

The defining characteristic of a two-stroke engine is to fire (combust) every time the piston is at top dead center. This makes them highly power dense, but also notoriously makes two-stroke engines ...

EcoMotors International, a startup based in Troy, Michigan, has a new approach to an old idea–the two-stroke engine–which it says is up to 50 percent more efficient than most vehicle engines ...

The closed-cycle performance of the engine configurations were compared using ... increased ratio of specific heats because of leaner operating conditions made possible by the two-stroke cycle, and ...

But when it comes to two ... the engine itself. After every combustion stroke, the expansion chamber would suck the cylinder clean of spent exhaust gases. Then, before the next combustion cycle ...

The Omnivore engine concept does not use meat and vegetables to function. It just has a variable compression ratio system and two-stroke operating cycle with direct fuel injection that allows it ...

the piston will travel two times to do the same thing. As described above, a 4 stroke engine only uses the area above the piston to combust air and fuel and expel exhaust. The combustion cycle ...