Engineers have been trying to perfect variable-compression engines for almost as long as engines have existed. So far, though, only Nissan has succeeded in bringing one to production. Its Variable ...

The Porsche-Hilite technology is comparatively simple, and could be offered to every automaker if and when VCR comes to market. Share on Facebook (opens in a new window) Share on X (opens in a new ...

SAE Transactions, Vol. 96, Section 4: RECIPROCATING ENGINES–SPARK IGNITION AND DIESEL (1987), pp. 614-623 (10 pages) A single-cylinder, variable–compression ratio, direct–injection diesel engine was ...

Turbocharging has mostly not lived up to its billing of being the savior of internal-combustion engine technology. Earlier this decade, facing increasing fuel economy requirements, automakers rushed ...

This is a preview. Log in through your library . Abstract In the scope of a research program carried out jointly by Volkswagen AG Research, Wolfsburg, and FEV Motorentechnik, Aachen, an advanced ...

However, not all innovations are equal, and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

GM has filed a patent application for so-called “Multilink Cranktrains with Combined Eccentric Shaft and Camshaft Drive System for Internal Combustion Engines.” The system is designed to provide ...

Nissan brought the first, and only, variable-compression engine to market. But its future doesn't look bright. Complexity in cars is a funny thing. It’s tempting to say that it’s all bad, that more is ...

In a world full of similarly priced compact luxury crossovers, one way to differentiate yourself is with what’s under the hood. That’s the approach Infiniti has taken with the all-new 2019 Infiniti ...

Infiniti's new Variable Compression Turbo is the centerpiece of this crossover. Variable compression engine sounds like something you’d hear from a super villain describing his latest contraption. At ...