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

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 ...

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

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 ...

However, not all innovations are equal and nor do they follow a constant upward trend. Instead, their evolution takes the form of an S-shaped curve that reflects their typical lifecycle from early ...

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 ...

P. C. Franklin, Performance Development of the Holset Variable Geometry Turbocharger, SAE Transactions, Vol. 98, Section 3: JOURNAL OF ENGINES (1989), pp. 1189-1201 ...

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 ...

Variable Turbine Geometry launch is on Porsche's flagship 2006 911-Turbo (997), and is also slated for several programs in the sub-two-liter class of engines.

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 ...

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

2007 - PACE Award Winner Porsche AG with BorgWarner Turbo and Emissions Systems GmbH What: The BorgWarner Turbo and Emissions Systems Gasoline Turbocharger with Variable Turbine Geometry Judge's ...