Patent · US Active

Plastic muffler with Helmholtz chamber

US8800713B2 · kind B2 · utility

7Cited by

12References

20Claims

0Family size

Assignee

Faurecia Emissions Control Technologies, USA, LLC · US

Inventors

Thorsten Keesser · Augsburg, DE
Robin Willats · Columbus, US
Dennis Boennen · Augsburg, DE
Joseph Callahan · Greenwood, US

Key dates

Filing date	Jan 12, 2011
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Jan 12, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2530/18
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A muffler for a vehicle exhaust system includes a plastic outer shell that defines an internal cavity. A metal pipe extends through the internal cavity from an inlet to an outlet. A Helmholtz chamber is formed within the plastic outer shell to attenuate a desired frequency.

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