For hybrid and electric vehicles in particular, the noises generated by cooling and ventilation of the passenger interior – predominantly at low driving speeds – are perceived as disturbing by the occupants. Conventional principles for noise reduction are not sufficient to meet the latest acoustic requirements specified by automotive manufacturers.
UMFOTEC has developed comprehensive solutions for this: a combination of absorption and damping (using the Helmholtz principle) reduces low frequency (bandpass) noises in a targeted and broadband manner. The manufacturer thus has access to a flow-optimised acoustic component, which can then be used to effectively set the noise profile associated with the brand. In the cooling circuit, the damping elements used formerly (called mufflers) tended to operate over a wide spectrum and less efficiently. Added to this is the high pressure loss of this solution. This is precisely where the strength of our solution lies: we achieve considerably greater noise reduction while reducing the pressure loss by almost a factor of 10.
This is an overview of all cookies used on this website. Please make your individual settings. You can adapt them at any time by using the "Cookie settings" link in the footer of this website.
These cookies are essential to the operation of the website, e.g. by saving your cookie settings.
|Purpose||Saves the visitor's settings|
Tools enhancing the browsing exerience, e.g. maps or videos.
|Purpose||Used to unlock Youtube contents.|
|Identifier||yt-remote-fast-check-period, yt-remote-session-app, yt-remote-session-name|
|Purpose||Used to unlock Google Maps contents.|