More power, lower fuel consumption
Harmonious engine-power characteristics, reliability and frugality with regard to fuel consumption characterise the new D26 Common Rail engine model series, which will replace the D28 model series that has been successful for many years. With the three power-output levels of 338 kW / 460 bhp (specially designed for buses of the MAN and Neoplan brands), 353 kW / 480 bhp and 397 kW / 540 bhp (specially designed for trucks in the heavy model series), the D26 Common Rail engines extend the offering portfolio of the D20 Common Rail model series, making MAN trucks strong partners for demanding tasks and deployment profiles.
Difficult topographies, high average speeds in long-distance transport and travel, above-average unloading rates or the transport of extremely heavy loads are the ideal conditions for deployment of the new generation of D26 Common Rail engines.
Optimised power characteristics and low running noise
The power and torque characteristics of the supercharged 12.4-litre in-line six-cylinder engine with overhead camshaft and four valves per cylinder are convincing. Even at idle speed, the D26 Common Rail engines provide high torque, which means that low engine speeds are sufficient even for demanding driveaway operations. With a maximum torque of 2100, 2300 or 2500 Nm, available over a wide engine speed range of 1050 to 1400 rpm, there is adequate power in difficult terrain, on long upward inclines or under high load.
Lower fuel consumption and high output-to-weight ratio
A large number of technical refinements on the new D26 Common Rail model series are responsible for achieving a significant amount of additional performance: compared to the previous versions, the new engines consume 2 % less diesel. Low-friction rolling rocker arms instead of bucket tappets for control of the gas exchange or the new, continuously variable controlled exhaust-gas recirculation (EGR) on the Euro 4 version of the D26 CR model series contribute to the economical handling of precious fuel.
Economy is also a factor with regard to the output-to-weight ratio and service costs.
With 70 kilograms less weight than its previous versions and up to 300 kilograms less than comparable engines from competitors, the D26 Common Rail model series sets new standards.
This provides the customer with a higher payload.
Programmed for reliability
With a service life of at least 1.5 million kilometres, low service costs complete the picture of an economical commercial vehicle drive system. In long-distance truck transport and travel, the D26 Common Rail model series can drive up to 120,000 kilometres before it has to seek out a workshop for scheduled service. This applies equally to the euro 4 and Euro 5 variants of the heavy model series. The low-maintenance design of the engines also reduces service times and costs.
Environmentally friendly thanks to smart exhaust-gas management technologies
In the D26 CR model series, engine variants in Euro 4 and Euro 5 versions are available for MAN TGS and TGX. In the case of the Euro 4 variant of the 460 bhp (only bus) and 480 bhp engines, the exhaust gas limit values are undershot by the robust, space-saving and weight-saving as well as maintenance-free system consisting of exhaust-gas recirculation (EGR) and MAN PM-KAT® (PM catalytic converter). A new, continuously variable controlled exhaust-gas recirculation is used here, making yet another contribution to reducing fuel consumption. In the case of the two Euro 5 variants with 480 and 540 bhp, the SCR technology called MAN AdBlue® is used in the truck. Here, MAN engineers have developed an additional primary catalytic converter with mixing section fitted close to the engine. This means that the main muffler can be kept compact, leaving plenty of free space available on the frame for vehicle equipment.
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D26 Common Rail in Euro 4 technology  |
D26 Common Rail in Euro 5 technology |
