Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

Add Yahoo as a preferred source to see more of our stories on Google. The two proposed adaptive engines that might one day power the Next Generation Air Dominance fighter have passed an important ...

Two-stroke engines have steadily fallen out of favor over the last 50 years or so. While they sport great power-to-weight ratios and are often much simpler mechanically than their four-stroke ...

MV Agusta revives a dual-crank engine design with a radical five-cylinder square concept, proving that internal combustion innovation is alive and well. The square engine layout uses dual crankshafts ...

Although reminiscent of the official F-47 renderings, the model in RTX’s video is actually based on a notional design by artist Rodrigo Avella. A new promotional video released by RTX, parent company ...

OHV stands for overhead valve, and these types of powerplants can also be called pushrod engines. OHV engines have the intake and exhaust valves located above the camshaft, which is in the engine ...

Engine manufacturer Pratt & Whitney will use new digital design technology to accelerate its work on the XA103, its submission for the U.S. Air Force’s Next Generation Adaptive Propulsion (NGAP) ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

The advent of turbochargers on road cars began in the mid-1960s, during the muscle car era when the phrase "there is no replacement for displacement" meant more power output was best achieved with ...

At the 2025 World of Concrete international trade venue, Honda introduced a new design concept to expand the company's GX Series engines portfolio. The Honda iGX design concept incorporates two ...

A team of engineers at NASA’s Jet Propulsion Laboratory, Pasadena, Calif, successfully tested a new ion propulsion engine design, one of several candidate propulsion technologies under study by NASA’s ...