Patent · US Active

Quadruple-tuned silencer apparatus and method for attenuating sound from an engine exhaust

US9874125B2 · kind B2 · utility

0Cited by

13References

25Claims

0Family size

Assignee

MIRATECH GROUP, LLC · US

Inventors

David Alan NELSON · Chilcomb, GB
Adam Merillat · Tulsa, US
Casey Don Tevebaugh · Claremore, US
Francis E. Reder · Tulsa, US

Key dates

Filing date	Oct 10, 2013
Grant date	Jan 23, 2018
Priority date	—
Expiry date	Feb 28, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01N2490/18
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An apparatus and method for attenuating sound from an engine exhaust. The relative lengths of the expansion chambers and other components within the apparatus provide a quadruple tuning effect which attenuates sound over a wide frequency range. Attenuation at higher frequencies is also increased and extended by the use of acoustically lined internal baffle tubes inside the apparatus housing.

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