VGTs change vane position to reduce lag and optimize power at all speeds. Cummins uses them widely, but not every engine in ...

The variable-geometry turbocharger is an advanced version of this technology, which brings several benefits along with an increase in complexity.

Every turbocharger design—whether it’s single or compound, small or large, with fixed or variable geometry—shares the same function and principles.

Volvo Trucks North America has revealed its new Variable Geometry Turbo engine. This launch is meant to pair with and improve the new Volvo VNR truck. Focusing on fuel efficiency and durability ...

Conventional wastegate equipped turbochargers suffer from narrow effective engine power speed range. Their turbines must be sized for either low speed response or high speed horsepower. Variable ...

All the hand wringing over recirculating exhaust gas through a truck engine's intake to meet October 1 emissions limits may have obscured the advantages of the variable-geometry turbochargers ...

And the flexibility the variable-geometry turbo provides makes this system work in 400hp trucks as well as ones making 800 hp. Thanks to the efficiency of the VTG turbo coupled with EFILive tuning ...

Volvo Trucks North America on March 10 launched the D13 Variable Geometry Turbo engine, promising a 3% fuel efficiency increase compared with prior options.

A new General Motors patent with USPTO outlines a two stage turbo setup with variable geometry for an internal combustion engine.