General Motors has just been granted a patent by the United States Patent and Trademark office for a two stage turbo setup with variable geometry in an internal ...

ANAHEIM, California—Volvo Trucks North America now has a diesel engine that meets stringent California emissions regulations, the OEM announced during the Advanced Clean Transportation Expo. Volvo ...

PACCAR has filed a patent for a variable geometry turbine (VGT) that includes an adjustable nozzle and a controller. The nozzle is calibrated during normal operation by adjusting it towards a closed ...

Turbochargers are wonderful things, taking waste energy and using it to help an engine to produce more power. The variable-geometry turbocharger is an advanced version of this technology, which brings ...

Variable cycle engine design embodies a transformative approach in aero‐propulsion, enabling engines to adapt their thermodynamic cycle to meet diverse operational demands, from fuel efficiency to ...

Something I've been kicking around for a while, and wanted to get opinions on: Is there a reason we can't use variable intake valve timing to "optimize" engine operation for E85 operation, while still ...