A typical four-stroke (Otto) engine performs intake, compression, combustion and exhaust. Otto’s modern four-stroke engine ...

Gasoline engines usually run on the Otto cycle, the standard four-stroke and two-stroke combustion process that has been powering humanity for a while now. Although engines typically rely on the "suck ...

Internal combustion engines typically have low efficiency, with modern gasoline engines around 35% and diesel engines ...

It's important to keep in mind that the combustion process occurs in a very brief period of time. Due to a variety of conditions that include mixture density, homogeneity, temperature, fuel ...

When I went to school for engine repair in the 1980s, we studied the differences between two- and four-stroke engine cycles extensively. If you're not familiar with engine strokes, understanding the ...

Ever since 2016, the U.S. Air Force (USAF) has been looking for a new engine to slap into its fifth-generation F-35 fighter plane. The engine didn’t get to be detailed until 2019, and testing didn’t ...

In dirt bike racing, two-stroke and four-stroke engines have their own unique advantages. What's the difference, and which ...

Higher power usually means worse fuel economy, except when it comes to compression ratio. Here is how engines extract more ...

The Lockheed Martin F-35 Lightning II is one of the few fifth-generation military aircraft currently in operation. Compared with all the others still flying in the world, it’s a true junior, having ...

GE Aviation's XA100 adaptive cycle engine has completed U.S. Air Force testing and is ready for development, promising significant F-35 performance boosts like 30% more range and 20% faster ...

Porsche patented a 6-stroke engine Outside of early Saabs, most gas-powered car engines are a 4-stroke Porsche's 6-stroke patent seems to indicate it could eke more power out of an engine Unless you ...