but only a bit about how engines work. This one inspires us to throw ourselves into the field with reckless abandon. [Huib Visser] built this glass cylinder four-stroke engine and he took great ...

The power stroke extracts work from these gases as they expand and force the piston to BDC. In the exhaust stroke, the exhaust valve is open and the combustion products are expelled from the cylinder.

In case you didn't know, each movement between TDC and BDC is referred to as an engine stroke. However, it sometimes gets confusing when people use different terms like 2-cycle and 4-cycle when ...

Basically, this thing is a mashup of four-stroke and a two-stroke engine designs (here's how an engine works, by the way), ...