Variable Volute Turbine

WHAT IS THE VVT?

The VVT is a completely new, patented way of controlling turbine flow. It features a 720° volute that can be unwound by a flexible link system to 360°. The efficiency is stellar—beyond what any multi-vane VGT can do. Conventional multi-vane VGT’s turn into impulse turbines when the vanes start to close and there goes the efficiency.

About the best efficiency an impulse turbine can produce is about 50%, whereas reaction turbines can be as high as 90%. Furthermore, there are no vanes to:

·       cause HCF failure of the turbine wheel,

·       create siren noise,

·       vibrate and wear,

·       flutter and reverse the aero-torque,

·       no wear to cause calibration error with the ECU,

·       no vanes to convert pressure to velocity and spoil the efficiency.

Efficiency is our forte.