Like countless other 19th-century inventors, entrepreneurs, and tinkerers, British engineer James Atkinson sought ways to improve on the Otto four-stroke combustion engine, first produced in 1876 ...

The engine combustion cycle used by Toyota engines are simulating the original Atkinson cycle invented by James Atkinson in 1882, through smart variable valve timings.

Toyota is investing heavily in larger-displacement Atkinson-cycle engines in addition to turbocharged engines, but Saga doesn't think the automaker will use turbocharging across many product lines ...

Here's how Atkinson-cycle engines work to save gas The Atkinson cycle has made a comeback thanks to hybrids. But how exactly does it work?

The Atkinson cycle is more efficient than the Otto cycle, so the 2016 Tacoma’s new engine will offer better fuel economy than other conventional V-6 engines without having to resort to ...

The Otto-Atkinson cycle engine operates on the Otto cycle at full load, for good power density, and on the Atkinson cycle at part loads, for reduced fuel consumption. The Atkinson cycle has a larger ...

Toyota has unveiled two fresh fuel-efficient power plants that will underpin 14 new engine variants to be introduced globally through next year.

Toyota has launched two new small-displacement, Atkinson cycle engines that get 78 mpg. Built to power the Japanese-automaker’s Aygo commuter and the 2015 Lexus RC F, respectively, the new ...