The Atkinson-cycle engine is a type of internal combustion engine invented by James Atkinson in 1882. The Atkinson cycle is designed to provide efficiency at the expense of power density.. A variation of this approach is used in some modern automobile engines. While originally seen exclusively in hybrid electric applications such as the earlier-generation Toyota Prius, later …

Atkinson Cycle engines aren’t recognized for their low- and mid-range torque, but Toyota believes it has addressed this issue with a variety of advancements. Although Toyota has utilized Atkinson Cycle engines in its hybrids before, this is the first time the Atkinson design will be employed as a stand-alone unit.

2015年1月14日 · This revelation allowed Toyota to build the world’s first Otto cycle engine with a simulated Atkinson-type valve action to significantly improve fuel efficiency. Known internally as the 1NR-FXE, the 1.5-litre four-cylinder petrol engine was installed in the 1997 Toyota Prius and paired with the fantastic new Toyota Hybrid System (now known as ...

2024年6月20日 · Toyota and Lexus hybrids have become heavily associated with Atkinson cycle engines and they are very economical while still being good to drive. The first car to use the cycle with the modern ...

An Atkinson cycle engine can complete all four strokes with a single rotation of the crankshaft. Read more about Atkinson cycle engines at HowStuffWorks. Science Tech ... This load leveling is why a full hybrid like the Toyota Prius or Ford Escape get better mileage around town than they do on the highway -- exactly the opposite of, like, every ...

2019年3月5日 · The 2GR-FKS — an Atkinson-cycle engine — is part of an engine family found in a range of other Toyota and Lexus vehicles such as the Toyota Highlander and Sienna, and Lexus GX, RX and LS.

2019年1月28日 · Most pickup truck fans probably know the new 2016 Toyota Tacoma will feature a new 3.5-liter V-6 engine, yet that isn’t the whole story. This new engine will use the “Atkinson” cycle, most ...

4 天之前 · Owing to that, there hasn't been much of a case to be made for Atkinson-cycle engines as standalone applications (although some Honda Civics used the technology in the 1980s); which is why Toyota ...

2017年10月9日 · More and more, manufacturers are using engines that take advantage of what's called the Atkinson cycle for engine combustion, especially with hybrids. A great example is the new-for-2017 Toyota ...

The engine kept the architecture and received the last Toyota's advanced technologies in the engine development. The 2GR-FKS can switch from Otto cycle to an Atkinson cycle operation for a better fuel economy. That is achieved by using the VVT-iW on the intake camshafts (Variable Valve Timing - Intelligent Wide). The engine still uses a ...