Engine Bay

Engine Encapsulations and Engine Covers

Innovative engine encapsulations help to store heat in the engine bay for longer periods so that less fuel is used for cold starts, thereby reducing vehicles’ emissions. They also minimize the engine noise emitted to the interior and the exterior of the vehicle.

Autoneum is a pioneer in the development of engine encapsulations and offers a key technology here with Theta-FiberCell. Theta-FiberCell is a lightweight fiber-foam-material and is mounted directly onto the engine or vehicle. In addition to its noise reduction and thermal insulation properties and associated high temperature stability up to 200°C, Theta-FiberCell is barely inflammable and highly resistant to engine vibrations.

The pioneering Theta-FiberCell technology is also used for the development and manufacture of engine top covers. These products are mounted onto the vehicle where they partially or fully cover the engine. Conventional covers are made of plastic and provide a screen for individual components of the engine for aesthetic reasons. By comparison, engine covers based on Theta-FiberCell are not only lightweight but also multifunctional: They reduce engine noise inside and outside cars and provide heat protection.

Brochure Engine Bay (1 MB) | PDF

Autoneum Offers the Following Products for Application in the Engine Bay:

  • Engine Encapsulations
  • Hoodliners
  • Outer dashes and other body-mounted absorbers
  • Engine top covers
  • Battery covers
  • Fender insulators
  • Water box shields
Hybrid-Acoustics PET

Hybrid-Acoustics PET
Sustainable noise protection in the engine bay

With Hybrid-Acoustics PET, Autoneum has adapted its textile interior technology Hybrid-Acoustics for use in the engine compartment. The patented innovation is based on a unique fiber material that acts as an insulator and absorber at the same time. Among others, Hybrid-Acoustics PET is used to encapsulate electric motors, thereby reducing noise directly at the source and particularly attenuating high-frequency sounds of the electric drive unit. This key technology accordingly ensures optimum noise protection in the passenger cabin and greater driving comfort.

At the same time, components made of Hybrid-Acoustics PET convince with their low weight. Compared to conventional insulators, they are up to 40 percent lighter and thereby contributing to a greater driving range. They are also flameproof and find application as powertrain-mounted insulators for combustion engines thanks to their temperature resistance of up to 180°C.

The parts, which consist to a large extent of recycled PET fibers, are produced waste-free and are completely recyclable – an outstanding life cycle assessment compared to equivalent components in the engine bay.