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:
Jan. 29, 2002
Filed:
Oct. 26, 2000
Applicant:
Inventors:
Thomas Jessberger, Rutesheim, DE;
Armin Ludmann, Gerlingen, DE;
Helmut Neuschwander, Ludwigsburg, DE;
Assignee:
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/510 ;
U.S. Cl.
CPC ...
F02M 3/510 ;
Abstract
A switching unit for closing inlet passages in an air intake system having a plurality of inlet passages arranged side by side in an internal combustion engine. The switching unit comprises one switched and one unswitched flow cross section for each cylinder of the internal combustion engine, flap valves and a shaft The switched flow cross sections can be closed and opened by flap valves which are operated with the shaft which is outside of the unswitched flow cross sections.