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:
Dec. 02, 2003
Filed:
Apr. 30, 2001
Thomas Jessberger, Rutesheim, DE;
Arthur Klotz, Remseck, DE;
Rudolf Leipelt, Marbach, DE;
Stefan Maier, Besigheim, DE;
Holger Paffrath, Ludwigsburg, DE;
Herbert Pietrowski, Pleidelsheim, DE;
Achim Rehmann, Kieselbronn, DE;
Robert Vaculik, Marbach, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
A duct system suitable for use as an intake manifold for an internal combustion engine, including flap valves ( ) for selective opening and closing of the ducts. The positions of the valves are continuously adjustable in order to produce a swirl in the flow of combustion air. To achieve this, a high degree of angular precision is required in the positioning of the valves. Intake manifold manufacturing tolerances need to be compensated during assembly of the valves. A valve adjusting mechanism is provided in mechanical couplings ( ) of the valve linkage between the position adjusting motor ( ) and the flap valves ( ).