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.

Date of Patent:
Dec. 19, 2023

Filed:

Jun. 17, 2020
Applicant:

Pierburg Gmbh, Neuss, DE;

Inventors:

Kai Sassenrath, Grevenbroich, DE;

Halim Celik, Huerth, DE;

Andreas Wehnemann, Neuss, DE;

Berthold Herrmann, Neuss, DE;

Assignee:

PIERBURG GMBH, Neuss, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/22 (2006.01); F16K 15/18 (2006.01); F16K 31/126 (2006.01);
U.S. Cl.
CPC ...
F01N 3/227 (2013.01); F16K 15/182 (2021.08); F16K 31/1262 (2013.01); F16K 31/1268 (2013.01);
Abstract

A valve device for an internal combustion engine. The valve device includes an actuator which moves a valve rod, a housing with an inlet and an outlet, a valve closing member attached to the valve rod which is lowered onto and lifted off of a first valve seat, a non-return plate which is loaded via a spring force in a direction of a second valve seat, and a sealing lip which is formed on the second valve seat or on the non-return plate. The sealing lip extends from the second valve seat in a direction of the non-return plate or from the non-return plate in a direction of the second valve seat. The sealing lip is formed with a free end which is inclined in a direction of a side on which a higher pressure is applied when the non-return plate rests on the second valve seat.


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