Patent · US Active

Hybrid acoustic silencer

US11143071B2 · kind B2 · utility

1Cited by

9References

19Claims

0Family size

Assignee

Cascade Engineering, Inc. · US

Inventors

Andrew R. Skestone · Caledonia, US
Michael T. Campbell · Grand Rapids, US

Key dates

Filing date	Apr 19, 2019
Grant date	Oct 12, 2021
Priority date	—
Expiry date	Mar 26, 2040

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R13/083
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A hybrid acoustic silencer for a motor vehicle includes an insertion loss layer tuned for good insertion loss properties at specific frequencies and an absorption layer tuned for good absorption properties at specific frequencies. The insertion loss layer is configured to be adjacent to a sound radiating surface of the motor vehicle and the absorption layer is configured to face outward from the sound radiating surface of the motor vehicle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.