TPR turbocharger

Most recently, the TPR platform been successfully combined with ABB’s VTG. VTG allows precise control of boost pressure from the TPR 56 and TPR 61, improving the diesel combustion process in order to better address the typical demands on turbocharging systems for rail applications.

With the ability to greatly enhance the adaptation of charge air delivery to engine operating conditions, including enhanced response to load impositions, TPR turbochargers with VTG enable locomotives to cope better with the constant operating variations typical of rail traction applications, such as load modulation and, in particular, ambient conditions. 

Using the VTG option, engine performance can be more closely adapted to operating conditions, leading to a useful saving of up to 4% on fuel costs in a typical heavy-haul rail application.
Learn more about VTG.

• Compact, robust, rigid construction
• Uncooled gas casings
• Integral axial turbine without damping wire
• Single-piece boreless radial compressor wheel
• High pressure ratios at high performance levels
• Plain bearings with squeeze oil film damper
• Gas outlet casing with integrated foot and drain
• Variable Turbine Geometry (VTG) as drop-in option with actuator and control logic (boost-pressure monitoring)

• Withstands high mechanical loads
• No water connections; no corrosion, no leakage
• High turbocharger efficiencies at all loads
• Compliance with strict engine emission regulations
• High fuel savings
• Increased rotor stability
• Reduced friction, longer lifetime
• Small space demand and footprint; optional drainage points
• Easy removal and replacement of complete turbocharger

• Enhances operational flexibility
• Extends locomotive’s range of operation
• Lower engine thermal load; increases reliability and durability
• Reduces fuel consumption
• Increases locomotive load dynamics
• Mediates the effects of ambient temperature and altitude on engine operating conditions
• Provides new options for optimizing engine power pack specifically for traction