TRANSPORT FACILITY Russian patent published in 2012 - IPC B62D25/10 B60R13/08 

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to wheeled transport facilities with bearing body faced on the side of passenger cabin by multifunctional linings. Transport facility comprises bearing body. Body roof face panel supports flat sheet noise absorbing panels and multifunctional lining attached thereon by adhesive or thermosetting coat, mechanical fasteners and/or appropriate mounts. Lining comprises bearing perforated substrate from porous noise-absorbing material, face decorative layer from air-permeable material made up of solid non-perforated structure cross-linked to substrate face surface by adhesive or thermosetting coat. This invention differs from known designs in that perforations of said roof multifunctional lining substrate feature diameter d₁=(0.7…2.0)×h₁, and distance between centers t₁=(0.7…2.0)×h₁. Air gap between multifunctional lining rear side and face surface of noise-absorbing panels makes 0.005 to 0.02 m while projection of face surface of said noise-absorbing panels features rectangular shape. Width of air gaps b₂, formed between opposite faces of adjacent noise-absorbing panels makes at least thickness h₂ of said panels. In compliance with another version, instead of flat sheet noise-absorbing panels, used are flat sheet two-layer noise-and-vibration damping panels containing viscoelastic vibration damping layer and porous noise-absorbing layer.

EFFECT: improved noise-absorbing properties.

22 cl, 24 dwg