Improved Acoustics of Heatshields
Upcoming stricter pass-by noise regulations in Europe and the desire for higher acoustic comfort increase the need for acoustic heatshields to be applied in the engine bay and underbody.
The RIMIC™ technology, which absorbs noise thanks to a specifically designed partial micro-perforation, is mainly combined with single-walled heatshields made of aluminum. This technology allows the acoustic properties of the heatshield to be tuned in a targeted way, reducing packaging requirements to the minimum. The partial distribution of the micro-perforation is key for ensuring fatigue performance at the attachment points.
When used in combination with double-walled acoustic heatshields, RIMIC™ offers good acoustic performance at a competitive cost compared to state-of-the-art multi-layer heatshields.
- Maximum acoustic absorption for single-walled heatshields, asking for minimum packaging space.
- Maximum stability for lifetime fatigue thanks to the partial distribution of the micro-perforation.
- Good acoustic performance of multi-layer acoustic heatshields.
Beside standard body-mounted heatshield applications, RIMIC™ is used in areas such as engine encapsulation or largely closed underbodies.