A gasoline piston engine that can dynamically change its compression ratio —that is, the amount by which the piston squeezes the fuel-air mixture in the cylinder—has long been a holy grail of engine ...

Rolls-Royce has completed the preliminary design review (PDR) on its variable-cycle engine for the U.S. Air Force’s Adaptive Versatile Engine Technology (ADVENT) demonstrator program. The project aims ...

In a recent article featured in the Chinese Journal of Aeronautics, considering the strong information extraction ability of deep reinforcement learning and the characteristics of interaction with the ...

Rolls-Royce's Liberty Works is set to start testing the core section of its US Air Force Research Laboratory-sponsored (AFRL) ADaptive Versatile ENgine Technology (ADVENT) engine development effort.

GE Adaptive Cycle Engine (ACE) is the latest in a proud legacy of game-changing propulsion innovations from GE Aviation. It was developed under the U.S. Department of Defense’s Adaptive Versatile ...

The new Infiniti VC-Turbo engine (code-named KR20) is chock-full of interesting details that come with its variable-compression-ratio trick. Click on through to demystify the unique operating ...

As a concept, the internal combustion engine is as old as dirt. To our luck, the ICE is still relevant nowadays thanks to engineering developments such as direct injection, cylinder deactivation, stop ...

Infiniti introduced the world's first variable compression-ratio engine, a technology it claims to have been working on for two decades, at the 2017 Los Angeles Auto Show. A variable compression-ratio ...

"I was drag racing in a Prius. I don't win a lot." While just about every line from a Hollywood movie ends up as a meme today, in the case of Jason Bateman in 2011's Horrible Bosses, the joke's ...

Wayne Cunningham reviews cars and writes about automotive technology for CNET's Roadshow. Prior to the automotive beat, he covered spyware, Web building technologies, and computer hardware. He began ...