He says that the power-dense rotary four-stroke engine prototype’s basic architecture is pretty much the same as that of the X2, which shows the scalability of the engines. The X Mini has a 4 lb ...

Designed for hand-held equipment, the GX25 mini 4-stroke engine weighs only 6 pounds and features a .29-kW/kg power-to-rate ratio. It replaces the GX22. Mechanical decompression provides easy start-up ...

A four-stroke engine uses four motions of a piston to complete one cycle of combustion. The first stroke of a cycle is the intake. The piston moves down to BDC, making space in the cylinder for ...

The Conley Stinger 609 supercharged four-cycle V8 gasoline engine - 6.09 cubic inches and 9.5 horsepower at 10,000 rpm (Photo: Conley Precision Engines) View 19 Images 1 / 19 ...

The most highly developed four-stroke engines in the world - Formula 1 and motorcycle engines - have rod ratios of more than 2:1. The rod ratio affects several engine dynamics, ...

A four-stroke engine uses four motions of a piston to complete one cycle of combustion. The first stroke of a cycle is the ...