New chassis and tanks are Scania Super’s perfect partners
2 MARCH 2022
Smaller, smarter, lighter and more efficient. Alongside Scania Super, a new flexible chassis and tank programme is introduced, making it possible for the truck to reach the same or even greater distances with smaller fuel tanks. Here’s how it all comes together.
When it comes to developing the most energy-efficient truck the transport industry has ever seen, everything counts. Which is why Scania has put considerable resources into developing a new flexible chassis and tank programme, which plays an important part in realising the full potential of the new engine range, aftertreatment system, gearbox and rear axles.
“The new tank programme enables us to maximise the uptake of fuel in the tank. Our philosophy during the development project was: “Why carry extra fuel as dead weight, when you can use it for load capacity instead?” says Aline Ferraz Larsson, a design engineer at Scania R&D.
Scania P 360 PHEV 6x2 rear-steer temperature controlled transport Scania 25 P BEV 6x2 rear-steer, temperature controlled transport
Aline Ferraz Larsson, Senior Development Engineer
Improved flexibility means bigger payload
The new chassis and tank programme features D-shaped fuel tanks made from aluminium. The new tanks are more robust yet also lighter, and their design increases fuel utilisation. New side-mounted SCR tanks are also included. All of this increases the vehicle’s uptime.
At the same time, Scania’s developers have improved the flexibility of the frame and the chassis composition.
“This gives the customer more choice for where to place the tanks on the frame, which is a great improvement for both them and truck body builders, since it creates opportunities for more efficient load distribution,” says Paula Pukk, Scania’s Head of SCR System Installation.
Ultrasound pressure sensors optimise fuel supply
One of the keys enablers of Scania Super’s unmatched efficiency is the clever new fuel optimisation unit. This unit is attached to the primary tank and works as a catch tank.
“The way that the catch tank is set up with electrical pumps enables the user to have ‘fuel on demand’: we get exactly the amount of fuel the engine needs, and no more. This minimises losses within the system,” says Alex Elofsson Alenius, a development engineer who worked on the project.
Scania P 360 PHEV 6x2 rear-steer temperature controlled transport Scania 25 P BEV 6x2 rear-steer, temperature controlled transport
Alex Elofsson Alenius, Test Engineer
Longer service intervals
The fuel optimisation unit brings a host of other improvements for customers, and for the overall performance of the powertrain. There are now longer service intervals for the two pressurised fuel filters. These service intervals have been aligned with the oil change intervals, which means fewer visits to the workshop and more time on the road.
The water separation process has also been improved. Together with the improved efficiency of the filters, this means better protection of the high-pressure components in the engine, and thus reduced repair and maintenance costs.
Started in two seconds in minus 40 degrees
The teams working on the new tanks and chassis programme all believe that Scania’s customers will be really impressed by the features of Scania Super.
“It’s really inspiring that we are able to improve crucial properties like fuel consumption, range, uptime and repair & maintenance costs,” says Elofsson Alenius.
“Improvements that customers definitely will notice are the minimised automatic air bleed and the improved startability that come with the fuel optimisation unit. I remember when we first tried out the system during the winter tests in Swedish Lapland. It was minus 40 degrees, but the engine started in two seconds. That’s a huge achievement,” he adds.
In short: Scania’s new flexible chassis and tank programme
- Improved flexible layout of the chassis composition improves body adaptability and creates a more efficient load distribution.
- New D-shaped fuel tank range with increased fuel take-up, reduced weight, improved robustness and increased uptime. Available in three cross sections.
- Fuel optimisation unit, which enables better utilisation of the new tank’s fuel potential, reducing the tank’s dead weight.
- Two new side-mounted SCR tanks, ensuring a 1:1 volume ratio between the Scania Super’s increased fuel capacity and AdBlue capacity.
