Method of making an acoustic automotive HVAC and AIS duct with a particle fiber slurry
US10300762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2017 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Nov 28, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21J1/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a method to form arbitrarily shaped, uniform, lightweight, thermally insulating and acoustically absorptive automotive components with controllable density, thickness, porosity, and surface integrity. The method is based on natural cellulosic fibers such as those found in cardboard and paper and uses a thermoplastic fiber and particle slurry to form fusible components. The method produces components having the benefit of commercially available thermoformed fiber mats or open-cell extruded foam components with excellent acoustical properties, enhanced thermal insulation, and are light weight, which limits engine inefficiency, and the high cost of such products so as to allow large scale implementation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.