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MAN Truck & Bus presents the new Euro VI technology for construction vehicles at bauma 2013
"Consistently efficient" is the motto of MAN's stand at bauma, where the new Euro-VI-compliant vehicles for the construction industry and off-road operation are the center of attraction.
Striking design for MAN series with Euro VI engines
The interplay of the new lion in the chrome-plated panel of the radiator grille and the wide-open wind deflectors results in a new, dynamic design for the front end of the vehicles. Moving the upper edge of the front flap further down has now exposed the windscreen wiper cover for better visibility. In this way, the windscreen wiper cover's design in black serves to visually enlarge the windscreen surface. This change to the proportions of the front view contributes significantly to differentiating MAN's Euro VI truck. At the same time, however, the recognition value of MAN trucks has been preserved.
New lion dominates MAN radiator grille
Whether it's in distribution transport, on long hauls or on the construction site, across the board from Euro II to Euro VI engines, the new MAN lion has its prominent place on the chrome trim of the radiator grille. The lion, a traditional figure of world renown and symbol of MAN's strength, has undergone a significant revaluation. It now radiates even more agility and power. The three famous letters, MAN, also gain by the new design of the logo: they are slightly bigger and stand out more visibly from the center of the radiator grille.
In addition to being visually appealing, the new design of the vehicle front also takes the requirements of the Euro VI standard into account. The cooling-air inlets at the vehicle's front have a larger surface area in order to maximise the incoming air flow cross-section and hence to increase engine-cooling performance. The aerodynamic optimisations conducted on the A posts, wind deflectors and bumpers all contribute to improved routing of cooling air.
In the course of the new vehicle design, the rugged steel bumper - a typical feature of the equipment on vehicles operated by municipalities and in the construction industry - has also been given a new form. An integrated step makes it easier for the driver to climb up and clean the windscreen. The radiator screen has been optimised so that it ends flush with the steel bumper. Steel bumpers in all MAN series are in three parts so as to keep down the cost of repair incurred by replacing individual parts. The big cooling-air intakes ensure the cooling of the engine under all operating conditions. In the TGS and TGX ranges, the number plate covers the front coupling jaw, preventing it from becoming dirty. When required, the number plate holder can be folded downwards.
Construction vehicles with Euro VI engines from MAN
Euro-VI-compliant engines are being introduced for MAN's entire range of products from TGL to TGS as well as TGX. MAN relies on an efficient concept comprising electronically regulated exhaust-gas recirculation (EGR) and exhaust-gas aftertreatment employing a CRT soot filter system and selective catalytic reduction (SCR). To this end, MAN combines sophisticated technologies, matching them optimally to each other. The key technologies necessary for Euro VI - common-rail injection system, exhaust-gas recirculation, two-stage turbocharging with intercooling, diesel particulate filter and SCR system - have for years successfully been proving their suitability for practical operation in MAN vehicles. Cooled exhaust-gas recirculation has been standard on trucks since 2000, SCR technology since 2005. The developers' primary goal was to keep fuel consumption down to the recognised low levels of Euro V without loss of power or torque. This means that MAN can continue to offer its customers efficient and reliable vehicles for daily operation.
By comparison with the Euro V standard, Euro VI requires a reduction of 80 percent in NOx emissions (from 2 g/kWh to 0.4 g/kWh) and a reduction of 66 percent in particulate mass (from 0.03 g/kWh to 0.01 g/kWh) with effect from 2014. This is why exhaust-gas aftertreatment consists of an oxidation catalytic converter in conjunction with a closed diesel particulate filter as well as SCR catalytic converters and associated sensors. MAN positions this entire system, known as SCRT (Selective Catalytic Reduction Technology), compactly on the right side of the vehicle behind the front mudguard in the exhaust silencer.
Euro VI engines with outputs of 220 hp (162 kW) up to the current maximum of 480 hp (353 kW) employ a combination of two-stage turbocharging with primary cooling and cooling and intercooling of the boost air. MAN consciously bases its strategy on two separate rugged and reliable turbochargers that share the job of increasing boost-air pressure instead of a single more complex turbocharger with variable turbine geometry. The result is a very high degree of efficiency with input power delivered fast across the whole engine-speed range and a longer service life for the system.
The maximum torque of MAN's new Euro VI engines is available at low engine speeds across a wider speed range than Euro V engines. In the heavy-duty series, the 320-hp (235-kW) engine outputs a maximum torque of 1,600 Nm at an engine speed as low as 930 rpm and maintains it up to 1,400 rpm. The same applies to the 360-hp (265-kW) engine with 1,800 Nm, the 400-hp (294-kW) engine with 1,900 Nm, the 440-hp (324-kW) engine with 2,100 Nm and the 480-hp (353-kW) engine with 2,300 Nm. The Euro VI vehicles can thus show their teeth off-road while being economical in on-road operation. These two aspects are demonstrated in a particularly impressive manner at 440 hp, which in Euro VI is now delivered by the engine with the largest capacity, 12.6 litres.
In formulating its regeneration strategy for the diesel particulate filter, MAN also paid special attention to maximum operational reliability. Regeneration in normal operation takes place independently and automatically. This enables almost all the particles that have been collected in the filter to be broken down while the vehicle is being driven. The particularly large surface of the ceramic filter elements enables long filter service lives. The oil-ash residue that collects in the diesel particulate filter after several hundred thousand kilometres is removed by replacing the filter element during servicing. The vehicle's service interval calculator recommends the intervals between cleaning, taking into account the operating conditions and the continually monitored exhaust-gas backpressure.
MAN positions the Euro VI exhaust silencer on the right side of the vehicle. This means that the well-known ease of mounting bodies on MAN chassis is retained because, as in the past, no parts protrude above the top edge of the frame.As industry-specific equipment, at bauma 2013 MAN is presenting upswept exhaust pipes at the rear of the cab. This is important primarily for vehicles that run the power take-off while stationary as it considerably reduces the exposure of an operator next to or behind the vehicle to exhaust emissions. MAN stays light - the weight of the system increases by only around 150 kg for the MAN TGL with a four-cylinder engine and by around 200 kg for TGL and TGM vehicles equipped with six-cylinder engines. The Euro VI exhaust-gas cleaning components similarly add only around 200 kg to the unladen weight of the TGS and TGX.
The Transport Efficiency Program from MAN Truck & Bus
The amount of transport and traffic on Europe's roads continues to rise. At the same time, the long-term dwindling of energy resources is making transport increasingly more expensive.As one of the world's leading manufacturers of buses and trucks, MAN Truck & Bus makes an important contribution to the continued improvement of transport efficiency. MAN offers a comprehensive efficiency program to reduce total cost of ownership. Transport efficiency, consolidated in the fields of technology, service, the driver and future expertise protects the environment and is added value for our customers.
The MAN Group is one of Europe’s leading industrial players in transport-related engineering, with revenue of approximately €15.8 billion in 2012. As a supplier of trucks, buses, diesel engines, turbo machinery, and special gear units, MAN employs approximately 54,300 people worldwide. Its business areas hold leading positions in their respective markets.
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