Honda patented an innovative engine back in 2014, and the automaker has now received the rights to it. The patent was then published on Japan’s Patent Office website, but it is no longer accessible.

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 ...

LONDON--(BUSINESS WIRE)--Technavio’s latest report on the global automotive variable displacement engine market provides an analysis of the most important trends expected to impact the market outlook ...

COLUMBUS, Ind. & DENVER, Colo.--(BUSINESS WIRE)--Cummins Inc. (NYSE: CMI) and Liberty Energy Inc. (NYSE: LBRT) (“Liberty”) today announced that the industry’s first natural gas variable speed, large ...

While significant attention is being paid to battery-electric and hydrogen fuel-cell powertrains, carmakers are still trying to wring more efficiency out of internal-combustion engines. Now, Infiniti ...

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 ...

GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

Nelson Ireson March 24, 2009 Comment Now! Multi-displacement system, displacement-on-demand, cylinder deactivation - call it what you will, they're all based around the same principle: turn off some ...

COLUMBUS, Ind. & DENVER--(BUSINESS WIRE)-- Cummins Inc. (NYSE: CMI) and Liberty Energy Inc. (NYSE: LBRT) (“Liberty”) today announced that the industry’s first natural gas variable speed, large ...

The new Infiniti QX50 might not seem the most natural fodder for these pages, but its engine surely is. Just introduced to the world at the Los Angeles Auto Show, the crossover is powered by the world ...

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 ...