At bottom-dead-center (BDC) the inlet valve is closed and the compression stroke (b) starts. Work is done on the air/fuel mixture as the piston moves ... this behavior for a Mitsubishi direct ...

While you may not be using the same amount of gas as you would while driving, piston strokes are ... leave your car's engine idling for a long stretch of time, how much fuel would you waste ...

With a 40:1 fuel/oil mixture the little engine idles and runs as well as a two-stroke can, belching blue smoke and making a ruckus. This answers the question of whether you can build a two-stroke ...

Unlike a four-stroke engine, which musters a single power stroke ... the piston moves up again for the rest of the 118-mm compression stroke, with fuel injected along the way.

But its latest internal combustion creation, in contrast to those racing engines, is designed to burn fuel more frugally: a gas-powered five-stroke with diesel consumption. English engineering ...

And that’s how this “six-stroke” engine achieves power pulses in two ... Emissions: Even without mixing lubricating oil into the fuel, the piston rings will necessarily drag trace amounts ...