The VTA system consists of a nozzle ring equipped with adjustable vanes which optionally replace the fixed-vane nozzle rings in MAN Diesel & Turbo's standard TCA and TCR turbochargers.

By altering the pitch of the adjustable vanes, the exhaust gas pressure is regulated and thus the air amount can be precisely matched to the quantity of injected fuel at all points in an engine’s load and speed range. The result is reduced specific fuel consumption, reduced emissions HC and CO₂ and improved engine response.

Benefits of VTA

• Up to 5g/kWh lower fuel consumption
• Lower soot and smoke emission
• Lower CO₂ emissions
• Lower particle emissions
• Suitable for TCA and TCR turbochargers
• Retrofit packages
• Short payback time
• VTA cuts fuel consumption and reduces emissions

All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice.