I believe Atkinson would roll over in his grave if knew that we are using his name on that engine. It is much closer to Miller cycle, but calling it a 100 year old design solves lots of possible patent issues.
I completely agree - I was calling it an “Atkinson” because Toyota does.
But I completely agree that it is much closer to a Miller Cycle.
And if GM/Ford/Dodge could pull their heads out of their nether regions, they could be using a similar engine and improving their fuel mileage. As it is, only the Japanese have used these American inventions (that I know of) in production cars.
Of course, if Detroit really got their heads out, they’d start doing some small, highly efficient diesels. But that’s like asking a duck to sing an opera.