Dr. Tony Chen

Turbochargers for Downsized Gasoline Engines.

Outlines

Drivers for Gasoline Turbocharged EngineDrivers for Gasoline Turbocharged Engine

Turbocharger Technical SolutionsTurbocharger Technical SolutionsTurbocharger Technical Solutions

BW New Generation Turbochargers for Otto EngineBW New Generation Turbochargers for Otto EngineBW New Generation Turbochargers for Otto Engine

Downsize (2.0l gasoline engine)

CO2 Reduction

Comparison between Turbo & N.I.

Engine (1.2L Otto)

Vehicle requirements

� Reduced CO2 Emission.

� Reduced NOx Emissions.

� Downsizing,Installation space saved.

� Improved Dynamic Response(esp. low speed).

Europe 2008-2015

European Trend

Outlines

Drivers for Gasoline Turbocharged EngineDrivers for Gasoline Turbocharged EngineDrivers for Gasoline Turbocharged Engine

Turbocharger Technical solutionsTurbocharger Technical solutions

BW New Generation Turbochargers for Otto EngineBW New Generation Turbochargers for Otto EngineBW New Generation Turbochargers for Otto Engine

Turbocharger Solutions

� 1) Twin Turbo

� 2) Gasoline VTG.

� 3) AGI technology.

� 4) Twin Scrolls

� 5) Integrated with manifold.

VW 1.4l gasoline engine (Twin-charger)

� SPEC:

� Rated power: 125kW，，，，

� Max. torque: 240Nm@1750rpm~4500rpm。。。。

� O~100km／／／／h: 7.9S。。。。

� 100Km/l : 7.2L／／／／1OOkm。。。。

New technology Gasoline VTG

VTG model

Resistant temperature:1050℃℃℃℃

Improve efficiency at low end

Actuator Control :Electron or pneumatic

Compressor housing integrated with CRV

Water cooled

Temperature Distribution after Full

Load Accel.

•Most critical case: Maximum

acceleration under full load

• Permanent High Temperatures no

problem even with component

temperature of 1000°°°°C

VTG TC for Porchase 911

VTG TC

Heat resistant up to 1000℃

Emission level: EU 5

3.6l gasoline engine

0-60mph under 4s

Top speed 192mph

615Nm@1950rpm~5000rpm

AGI section

New technology twin scroll

Twinscroll simulation analysis

OPEL 2.0l gasoline engine

� 2.0l DGI

� 192Kw@5500rpm

� 350Nm@1800~4500rpm

AUDI 1.8TSI

K03

Resistant temperature:980℃℃℃℃250Nm@1800rpm~4500rpm

132kW@5500rpm

Turbine housing integrated with manifold

Compressor housing integrated with noise

absorber and E_CRV

Opel 1.6l TCI

Outlines

Drivers for Gasoline Turbocharged EngineDrivers for Gasoline Turbocharged EngineDrivers for Gasoline Turbocharged Engine

Turbocharger Technical solutionsTurbocharger Technical solutionsTurbocharger Technical solutions

BW New Generation Turbochargers for Otto EngineBW New Generation Turbochargers for Otto Engine

Range of Product – TW size

Our Solutions:

• Specially developed range

• High grade materials

• Water-cooled bearing casings

• Further developed systems for high temperature applications up to 1,050°C

• New generation of turbines and impellers

• Different boost concepts depending on engine strategy:

– waste gate and boost pressure control valves – variable turbines – twin flow turbines – eBooster™

• Special design solutions such as integrated exhaust manifolds

Turbocharging Systems for Gasoline Engines

Outlines

Questions?Questions?