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:
Oct. 20, 2009
Filed:
Jun. 01, 2006
Marcus Abele, Gerlingen, DE;
Marcus Abele, Gerlingen, DE;
Mahle International GmbH, Stuttgart, DE;
Abstract
With a gas exchange valve of an internal combustion engine having a hollow valve shaft () and valve disk (), wherein the valve disk () has a valve tray () and a valve cone () connected to the outer edge thereof, whereby the valve cone () tapers with an increase in distance from the valve tray (); the hollow valve shaft (), passing completely through the space surrounded by the valve cone (), is fixedly connected to the valve tray () at one end and at the other end is fixedly connected to the tapering end of the valve cone (); the valve shaft () has parts telescoping into one another, namely a lower shaft part () facing the valve tray () and an upper shaft part () connected thereto, whereby the lower shaft part () engages in a form-fitting manner in the upper shaft part (); and the upper shaft part () and the lower shaft part () are joined in a shaft connecting area (), in particular by being welded together; coke deposits in the areas of the valve facing away from the combustion chamber, such deposits being promoted there due to interfering edges in the flow, are to be prevented.