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:
Jul. 19, 2016
Filed:
Jul. 23, 2013
Behr Gmbh & Co. KG, Stuttgart, DE;
Michael Paul, Sachsenheim, DE;
Klaus Gruber, Waging, DE;
MAHLE International GmbH, Stuttgart, DE;
Abstract
The invention relates to an air conditioning unit having an air duct, having a fan for conveying an airflow through the air duct, having a heat exchanger for the thermal conditioning of the airflow and having an apparatus for noise reduction, which apparatus has a microphone, a loudspeaker and an evaluation and control unit, the microphone being arranged in a housing indentation of the duct wall of the air duct, the housing indentation having a wall and the loudspeaker being arranged at least partially in an opening of the duct wall of the air duct in a manner which is spaced apart from the microphone in the direction of the noise emission, wherein the wall of the housing indentation is curved at least partially, the housing indentation of the microphone being covered with a porous acoustically transparent material.