The upsides of cylinder deactivation systems are obvious: Estimates from the U.S. Department of Energy say they can improve fuel economy by about 7.5 percent. (Many manufacturers offering cylinder ...

Jacobs Vehicle Systems provides a closer look at how Cylinder Deactivation (CDA) and Active Decompression Technology (ADT) improves emissions, fuel economy and driver comfort in an International LT625 ...

The automotive industry continues to be a hotbed of innovation, with activity driven by the demand for improved engine performance, higher fuel efficiency and the need to comply with government ...

Jacobs invited editors to a demonstration of cylinder deactivation (CDA) and active decompression technology (ADT) in action on an in-cab display while driving on a test track. Engine makers will have ...

Eaton announced its Vehicle Group has demonstrated cylinder deactivation (CDA) as an effective technology for meeting future global emissions requirements for diesel-engine powered commercial vehicles ...

General Motors’ Active Fuel Management system has been around long enough to earn both fans and vocal critics, and that split has created a simple but urgent question for buyers: which GM engines ...

How does cylinder deactivation work? When not needed, the system shuts down fuel supply to the cylinders not being used and closes the valves. There are two ways to accomplish this: 1) rocker arm ...

Cummins reports that its Jacobs cyinder deactivation system boosts heavy truck fuel economy by almost 3% in on-highway testing. Cummins Valvetrain Technologies reports positive results from further on ...

Want to slash your monthly fuel bills? Discover the latest car technologies like mild hybrids and cylinder deactivation that ...

Way back in 1981, Cadillac, reacting to the same pressure to maximize fuel economy automakers face today, came up with America's first mass-produced, variable-displacement, gasoline, V8 engine. Known ...