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. 05, 2013
Filed:
Oct. 26, 2006
Michael Thiery, Korschenbroich, DE;
Max Herrmann, Neuss, DE;
Harald Krause, Grevenbroich, DE;
Heinrich Dismon, Gangelt, DE;
Martin Nowak, Düsseldorf, DE;
Rolf Lappan, Köln, DE;
Michael Thiery, Korschenbroich, DE;
Max Herrmann, Neuss, DE;
Harald Krause, Grevenbroich, DE;
Heinrich Dismon, Gangelt, DE;
Martin Nowak, Düsseldorf, DE;
Rolf Lappan, Köln, DE;
Pierburg GmbH, Neuss, DE;
Abstract
An air control valve for internal combustion engines having a turbocharger, is placed inside a bypass channel between a pressure side and an intake side of a boost pressure pump of the turbocharger, and has a housing which incorporates an electromagnetic drive unit and a valve unit movable in the housing. The valve unit has a valve rod and a valve closing body attached thereto and a circular sealing element. An arrangement is provided to keep the moving valve unit in a closed position when no current is supplied to the valve unit. At least one pressure compensation opening is provided in the moving valve unit, and the valve closing body has a cylindrical lateral surface which is arranged in such a manner that a housing interior is sealed towards the pressure side or the intake side.