Add The Drive (opens in a new tab) Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results The rotary engine is ...

Rotary engines such as the Wankel have strange shapes that can be difficult to machine (as evidenced by the specialized production machines and patents in the 70s), which means it lends itself well to ...

There's been a lot of development activity around flying vehicles recently, but the Air Force wants a shortcut to an unmanned electric vertical takeoff and landing (eVTOL) concept for urban transport.

Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

The developer of a line of advanced rotary diesel and multi-fuel internal combustion engines is expanding into the renewable energy game. LiquidPiston's X-Engine, which we've covered previously and is ...

The supercharged 25-hp XTS-210 rotary engine is intended to fill a gap on the mobile power market. Credit: LiquidPiston LiquidPiston has launched a 25-hp heavy-fuel rotary engine that could power ...

Not every engine has a set of pistons that move up and down in a cylinder. The Wankel, or rotary engine, delivers its power with rotational force rather than a reciprocating mass that hammers out ...

When I wrote about Mazda’s attempt to create the perfect range extender, I mentioned I wanted to examine the ideas that seem to be closer to that goal. Unfortunately, the Japanese company’s attempt ...

LiquidPiston is to study the application of its rotary diesel engine technology to hybrid-electric propulsion systems for unmanned aircraft and advanced air mobility vehicles under a contract from the ...