The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2025
Filed:
Jul. 03, 2020
Volvo Truck Corporation, Gothenburg, SE;
Hans Rönnings, Gothenburg, SE;
Carl Löwstedt, Onsala, SE;
Mikael Karlsson, Gothenburg, SE;
Sophie Girolami, Gothenburg, SE;
VOLVO TRUCK CORPORATION, Gothenburg, SE;
Abstract
An air filter housing includes an inner housing space adapted to receive an air filter element. The air filter housing includes a first end and a second end located axially opposite the first end in relation to the inner housing space, and an outlet channel path extending from the inner housing space and out from the second end, the outlet channel path having a length X m, the length X m being adapted to stabilize a noise having a wavelength of Y m travelling through the outlet channel path towards the inner housing space, wherein the length X m is related to the wavelength Y m according to the following relationship: Y/16<X<Y/8.