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Perforated metal components for cooling combustion engines and electric motors in buses
Mobility is undergoing a profound change: modern, low-emission electric buses have the potential to make public transport more climate-friendly and efficient. However, it will be several years before all public bus transport whirs through the streets purely electrically. Solvaro is well prepared for the coexistence of combustion and electric buses and offers suitable ventilation grilles for both drive types.
Both drive types – combustion engine and electric motor – generate waste heat during operation. This must be continuously dissipated into the environment so that the drive does not overheat. In the case of electric buses, it is also important to continuously cool the temperature-sensitive batteries. In practice, this is achieved using the principle of convection, the removal of heat through the movement of cooling air.
To ensure that the right amount of cooling air reaches the vehicle interior at all times, Solvaro develops and manufactures flow-optimised, perforated metal components that allow up to 85% air flow and thus ensure a sufficient supply of fresh air at all times. This ensures constant, optimum engine performance. At the same time, the ventilation grilles also act as protection against stone chippings and filter unwanted particles from the supply air.
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TRAPEZOIDAL VENTILATION GRILLES FOR THAT EXTRA PORTION OF AIR
Solvaro has worked closely with Polish bus pioneer Solaris to develop a production-ready ventilation grille that ensures stability and even better ventilation thanks to its advanced trapezoidal geometry with wave-shaped moulding. The ventilation grille with 1.2 mm thick sheet steel scores points for its outstanding stability thanks to its trapezoidal shape, while the Hv 6.5-7.3 perforation also ensures an air flow rate of 80 %. The wave-shaped shaping is particularly clever, further increasing the air-permeable surface and thus optimising the cooling effect even more.
THE PROJECT AT A GLANCE
- Mobility change: electric buses as a climate-friendly option
- Cooling requirements for combustion engines and electric motors
- Convection as a principle for heat dissipation
- Solvaro: manufacturer of perforated metal components for efficient cooling and air supply
- Development of special trapezoidal ventilation grilles for improved ventilation and stability, especially for Solaris buses