Gas-duct with a sound absorbing component
AssigneeZephyros, Inc.
InventorsChristophe Chaut, Greg Thompson, Marc Engel
Life of this patent
Estimating the term…
Abstract
The present teachings relate generally to a gas-duct whose channel body is manufactured from a plastic material, wherein the channel body has at least one region replaced by a sound absorbing component being made at least partially from at least one non-woven layer. The present invention further relates to a HVAC- and Battery- and/or battery-charge-system and to a method of producing a gas-duct.
Claims20
A gas-duct having a channel body manufactured from a plastic material, wherein the channel body has at least one region replaced by a sound absorbing component having an inner surface and a generally opposing outer surface, the sound absorbing component made at least partially from a non-woven air permeable or porous material made from non-woven layers including a needle punched layer and a short fiber layer, wherein fibers of the short fiber layer have an average length of about 5 mm or less, and the non-woven layers having different levels of specific air flow resistance;
- wherein a circumference of the sound absorbing component is connected to the channel body by an adhesive bond between the sound absorbing component and the plastic material of the channel body;
- wherein the adhesive bond is a connection due to overmold of the plastic material over a portion of the inner surface and/or generally opposing outer surface, but not both, penetrating the air permeable or porous material and solidifying there, resulting in an over-mold area at the sound absorbing component.
Dependencies are inferred from the claim text.