A recently filed patent details a new GM cylinder deactivation system that appears to be heading to the next-gen V8 engines ...

General Motors has filed a new patent that offers a look at how the company may be rethinking cylinder deactivation for its ...

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

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 clock is ticking for trucking manufacturers to meet challenging new emissions requirements in 2024 and 2027. On those two horizons are reductions of NOx by up to 90 percent, CO2 by up to 25 to 30 ...

Manufacturers continue to develop advanced technologies that aid in the improved operational efficiency of heavy-duty commercial vehicles. This effort has been a priority for vehicle suppliers and ...

The cylinder deactivation technology (CDA) from Jacobs Vehicle Systems (Jacobs) has realized "many performance-enhancing benefits in recent independent validation tests carried out on next-generation ...

Cylinder deactivation is a proven solution to improve vehicle fuel economy. This proposal presents Dynamic Cylinder Deactivation (DCD) solution to the conventional automotive engines. DCD is an engine ...