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 ...

Wondering if rotary engines need oil changes? Learn how their lubrication works and why regular oil maintenance is still ...

Part of this is to avoid confusion with an aviation rotary engine that has its cylinders arranged outwardly from the crankshaft in a circular pattern ... Otto-cycle four-stroke engine, just ...

Connecticut-based company LiquidPiston is developing a high-powered generator for the US Army that uses the company’s own rotary x-engine ... are all four-stroke engines.

The Alpha Otto Rev Force features forced induction, rotary exhaust valves and can run on a variety of different fuels.

Felix Wankel’s rotary engine design is best ... and thirst for fuel attributed to a two-stroke-esque combustion cycle. A model-scale engine was modified by YouTube user Warped Perception ...

Essentially the rotary engine operates with the same basic principles as the common piston engine, with the four-stroke sequence of inlet, compression, combustion and exhaust strokes producing the ...

The genius of the rotary is that one rotation means three separate power strokes, as opposed to four-stroke piston-engines, which – as the name suggests – only make power on one movement out ...

How It Works The X Mini is a take on the rotary engine. In ordinary piston-based diesel engines, air and fuel are injected into the cylinder during the expansion stroke. The chamber is compressed ...

Rotary engines ... playing with engine shapes—in its own words, it's also trying to reinvent the thermodynamic cycle. "The HEHC [High Efficiency Hybrid Cycle] cycle is a four-stroke cycle.

When I went to school for engine repair in the 1980s, we studied the differences between two- and four-stroke engine cycles ... including the rotary engine used primarily by Mazda and the Scuderi ...