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. 24, 2002
Filed:
Oct. 26, 2001
Klaus Altmann, Boennigheim, DE;
Andreas Epp, Marbach, DE;
Thomas Haubold, Marbach, DE;
Klaus Lieb, Backnang, DE;
Jochen Linhart, Waiblingen, DE;
Hermann Maurer, Oberstenfeld, DE;
Juergen Werner, Baltmannsweiler, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
An intake system for an internal combustion engine of a motor vehicle which includes a first unfiltered air intake ( ) which is arranged at a location in the vehicle that is favorable for air intake, and a second unfiltered air intake ( ) which is arranged at a location in the vehicle that is protected against road spray and splashes of water. The two unfiltered air intakes ( ) each open into a common line ( ) which communicates with the internal combustion engine. In the first unfiltered air intake ( ) there is a moisture sensor ( ) which emits a signal when water enters the first unfiltered air intake ( ). This signal actuates a drive member which moves a flap between first and second switching positions. In the first switching position, the flap closes the second unfiltered air intake , so that no air can get into line from the second unfiltered air intake . In the second position, the flap closes the first unfiltered air intake , so that air gets into line exclusively through the second unfiltered air intake