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:
May. 03, 2005
Filed:
Dec. 03, 2002
Jochen Linhart, Waiblingen, DE;
Michael Fasold, Leutenbach, DE;
Jochen Linhart, Waiblingen, DE;
Michael Fasold, Leutenbach, DE;
Filterwerk Mann & Hummel GmbH, Ludwigsburg, DE;
Abstract
An intake head device for an internal combustion engine, which is suitable for impulse charging and/or residual exhaust gas purging, including a pressure accumulator () which may apply overpressure to the pressure passage via a pressure passage, so that this produces residual exhaust gas purging of the cylinder () when the inlet valve () is open and the impulse flap () is closed. The impulse charging is performed by a partial vacuum which is generated in the accumulator passage () by the air intake of the cylinder (). The pressure accumulator arrangement of the invention has the advantage that the closing time of the flap () may be longer.