Customised Solutions Equal More Customer Options

The core of turbocharger performance comes down to aerodynamics: the shapes and dimensions of the turbine and the impeller, and their housings. It is in aerodynamic design that Holset Turbochargers excel. Cummins Turbo Technologies has mastered aerodynamic design, and has done so for far longer than the competition. From a theoretical point of view, any turbocharger manufacturer can apply book knowledge to achieving optimal design for a particular requirement; the problem comes when constraints, such as conflicting requirements, are introduced. The skill lies in matching those requirements and obtaining the best performance for both the compressor and the turbine. This is what Cummins Turbo Technologies has spent 60 years achieving.

Inlet to Outlet Airflow Optimisation

The exceptional aerodynamic design of Holset Turbochargers comes down to understanding the results that extensive analysis provides. Data comes from some of the world’s most powerful 3D Computer Aided Design (CAD) programs, including 3D Computational Fluid Dynamics (CFD) and other methods, allowing engineers to model from inlet to outlet of a compressor or turbine stage, with moving wheels and accurate geometry including applied effects such as thermal energy. From this advanced process comes features such as Cummins Turbo Technologies’ patented Map Width Enhancement (MWE), which gives Holset Turbochargers the widest compressor map width of any turbocharger available.

Advanced Design Technique Leads to Innovative Solutions

Cummins Turbo Technologies uses an inverse design technique, which examines requirements based on aerodynamic performance. In the end, the process produces turbochargers with unusual shapes on the shroud of the impeller blade and other interesting features. For aerodynamic designers, inverse design technique has opened up a whole new set of geometries that have never before been explored.