Eminox wins exhaust contract
Emissions technology specialist, Eminox, is to supply exhaust systems to Liebherr Machines Bulle SA, the Liebherr group engine manufacturer, to achieve Stage four emissions standards.
The systems, which are based on selective catalytic reduction (SCR) technology, are to be fitted to the complete range of Liebherr on and off road machines, comprising some 10,000 machines per year.
“This has been a real development partnership between the two companies, with each complementing the other in perfecting these systems,” said Paul Canwell, project manager, Eminox.
One of the main aims in developing the systems was to keep the number of exhaust system variants to a minimum while working within the limited space available for mounting the systems on many of the machines.
Eminox achieved this by using novel system geometry and innovative urea injection points, along with advanced mixing.
System development was supported by Computer Aided Design (CAD), Computational Fluid Dynamics (CFD) simulations, acoustic modelling and back pressure calculations.
Eminox’s fast prototyping capabilities meant that prototypes could be produced at each stage of development.
This allowed Liebherr to test the performance of the systems on their own engine beds.
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