Patent · US Active

System for influencing exhaust noise in a multi-flow exhaust system

US9706295B2 · kind B2 · utility

3Cited by

9References

20Claims

0Family size

Assignee

Eberspächer Exhaust Technology GmbH · DE

Inventors

Michael Pommerer · Uhingen, DE
Juergen Kobe · Jeffery Road, DE
Ralf Hoelsch · Epfendorf, DE
Peter Wink · Eppingen, DE

Key dates

Filing date	Jun 24, 2014
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Aug 1, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N13/04
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An anti-noise system for influencing exhaust noises propagating through a multi-flow exhaust system includes a controller 80 and at least one actuator. The at least one actuator is disposed in a sound generator 20; 21; 23; 25; 27, connected to the controller 80 for receiving control signals, and adapted to generate sound inside the sound generator 20; 21; 23; 25; 27. The sound generator 20; 21; 23; 25; 27 is connectable to at least two exhaust tracts 60, 61 of the multi-flow exhaust system of the vehicle simultaneously. The controller 80 is configured to generate a control signal that prompts the at least one actuator disposed in the sound generator 20; 21; 23; 25; 27 to cancel sound inside the at least two exhaust tracts 60, 61 of the vehicle's multi-flow exhaust system at least in part and preferably completely.

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