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Technical Papers
October 2016

VNT Turbo for Gasoline Engine

Author: F. Gerard, N. Morand, G. Agnew

VNT Turbo for Gasoline Miller Engine

• Why Combining Miller + VNT Turbo ?
– Miller Cycle Combustion Benefits
– Variable Nozzle Turbine, VNTTM Turbochargers
• Specific VNT Developments for Gasoline
– Aerodynamics
– Reliability


• Garrett first high volume Gas VNT + Miller cycle with SOP in end 2016
• Specific aerodynamics developed to meet gas engine flow requirements
• Design & Qualification plan complete for 880°C and in progress for 950°C
• Full portfolio of VNT Gas being developed to cover 1.0L to 2.0L


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