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:
Oct. 17, 2006
Filed:
Nov. 26, 2002
Christian Prellwitz, Lorch, DE;
Jürgen Stehlig, Neckartailfingen, DE;
Christian Prellwitz, Lorch, DE;
Jürgen Stehlig, Neckartailfingen, DE;
Mahle Filtersysteme GmbH, Stuttgart, DE;
Abstract
An intake air filter () is for an internal combustion engine, especially in a motor vehicle. The filter has a filter housing () having a raw air inlet (), a pure air outlet (), and an annular filter element () which is arranged in the filter housing () and through which air can flow in a radial manner from the outside towards the inside. The filter element has a first end disk () on the axial end thereof, said disk has an opening () by which means the pure air outlet () communicates with the inside () of the annular filter element (). The purpose is to reduce the influence of a secondary air induction on the fresh air supply of the internal combustion engine. To this end, the filter housing () has a secondary air outlet (), on the pure air side, and the annular filter element () has a second end disk () on an axial end opposing the first end disk (). The second end disk has at least one opening () by which the secondary air outlet () communicates with the inside () of the annular filter element ().