Engineering the Future - since 1758.

MAN Diesel & Turbo has more than 60 years unprecedented experience of producing turbo­ hargers with plain bearings and uncooled hot gas casings. c What would a state-of-the-art diesel engine be without a turbocharger? With speed rates of over 70,000 rpm and circumference speeds faster than the speed of sound, the turbocharger is one of the most important engine components. As it “inhales” air into the engine, which is indispensable for combustion, it is often referred to as the engine’s lung. A modern turbocharger is able to increase the engine output by more than 300%. Following MAN Diesel &...

Turbine New CFD-optimised profiled rotor blades, nozzle ring, inlet and outlet casing Increased efficiency Constant and pulse pressure turbocharging Optional variable turbine geometry Excellent adaption to variable engine conditions Bearings High performance plain bearings Optimised shaft diameter Compact plain bearing concept Minimised mechanical losses, extended service life Increased efficiency Ideal rotor dynamic behaviour Compressor New CFD-optimised compressor wheel, diffuser ring and compressor volute Extended pressure ratio and specific volume flow Optional internal flow recirculation...

Vital components that increase engine power by more than 300% Whispering silencer Compressor volute Compressor wheel Plain Nozzle bearings ring Turbine wheel with shaft

Turbine wheel All the flown-through components of the TCR turbo- New CFD-optimised profiled rotor blades, nozzle charger have been flow and stress optimised by means rings, inlet and outlet casing for increased efficiency of modern 3D-CFD and FEA calculations. Part or full load optimisation is possible by means of a variety of different rotor/nozzle ring flow area combinations. Constant and pulse pressure turbocharging n Variable nozzle ring (optional)

Semi-floating journal bearings with squeeze oil damper The TCR bearing includes tried and tested aspects of This arrangement enabels an extremely space-saving the radial and axial bearing design of the NR series, bearing design. For easy servicing, all bearings are such as the floating radial bearing bushes coupled housed in a bearing body. with new detail solutions like the non-rotating radial bearings. The new “semi-floating” design permits most reliable operation and low wear. Semi-floating bearings with squeeze oil damper n Compact bearing concept with centre thrust bearing n Oil pressure...

By applying up-to-date 3D CFD and FEA calculations,a new compressor wheel geometry has been created with further improved efficiencies. Depending on the application, part-load and full-load optimisation is possible by means of flow area combinations. TCR turbochargers can be optionally equipped with the IRC system (internal recirculation) which is able to provide a larger compressor characteristic map with increased surge margin ability. The compressor wheel is milled from a high resistant aluminium alloy that can withstand intake conditions within a wide temperature spectrum. A new type of compressor...

Compressor pressure ratio π Compressor volume flow VC tot [m3/s] 3.5 3.0 high pressure four-stroke version standard four-stroke version two-stroke version Compressor pressure ratio π Range of Turbocharger efficiency (  TC) high pressure version Turbocharger programme Type Supercharged engine output [kW] 2-stroke

Nozzle Ring TCR nozzle rings are manufactured from an extremely resistant material which ensures a long service life. Optimum adaptation of the turbocharger to the respective engine is achieved by means of individually selected flow areas (matching). A variable nozzle ring is optionally available. The variable nozzle ring permits optimum adaptation of the flow cross-section to the corresponding load conditions of the engine, thus reducing fuel consumption and pollutant emissions as well as improving dynamic load acceptance.

Whispering Silencer The entirely newly developed silencer cast from aluminium reduces sound imission to less than 105 dB(A). The radially arranged silencer segments have a flowoptimised design and contribute to the high efficiency of the turbocharger. The filter mat on the silencer circumference is easy to clean whenever necessary. Whispering silencer with patented radially inserted damping plates

The uncooled casing of the TCR series has been access to the turbine wheel for inspection and cleaning. designed in accordance with the “pipeless engine“ Integrated turbine and compressor washing devices principle. All supply pipelines are integrated in the are optionally available. The DIN flange of the flow-op- casing. The compressor and turbine casings have timised turbine outlet casing allows it to be easily fitted measuring connections for monitoring the pres- to the exhaust gas pipe. Alternatively, a simple and sure and temperature. A speed pick-up is also spacesaving 90° elbow can be supplied....

The best maintenance would be if no maintenance were necessary at all. In this respect the new TCR series features extended maintenance intervals of up to 30,000 operating hours. When designing the turbocharger, great care was taken to ensure that servicing – even though seldom – can be carried out as easily as possible. For example, the compressor wheel can be taken out without dismantling the compressor casing. On the turbine side, the outlet casing comes with a wide inspection hatch that provides good access to the turbine wheel for inspection and cleaning. MAN Diesel & Turbo has also reduced...

World Class Service Around the clock PrimeServ – Peace of mind for life Customer support for turbochargers is vital – MAN Diesel & Turbo provides a worldwide service stations worldwide network for repairs and maintenance. Knowledgeable partners in more than 150 service A one stop service for turbochargers, diesel and gas engines A fast delivery of spare parts is of utmost importance to avoid down times. MAN Diesel & Turbo has an Around the clock after sales service Largest turbocharger ‘license net’ with full allowing parts to be delivered within 24 hours. high availability of spare parts through...