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:
Mar. 16, 2004
Filed:
Apr. 24, 2002
Rudolf Leipelt, Hessigheim, DE;
Rolf Fuesser, Bad Herrenalb, DE;
Robert Vaculik, Marbach, DE;
Thomas Haubold, Marbach, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
An air intake system for intake air of an internal combustion engine comprising a filter insert ( ) in a housing ( ) connected to the air conducting system by a plurality of inlets ( ) and an outlet ( ). The air inlets are provided with individual intake nozzles or fittings and lead to a single common air chamber ( ) in the filter housing. The inlets ( ) can be individually opened and closed by flap valves ( ), thereby allowing the acoustics to be influenced favorably and enabling, for example, the respective intake fittings to be connected or disconnected depending on the temperature. The intake system requires only a limited number of components, and the design of the preferably wedge-shaped air chamber minimizes flow losses in the housing, which in turn decreases the intake noise. Shunt resonators ( ) can also be formed using cover elements ( ) and ( ).