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. 12, 2002
Filed:
Aug. 01, 2000
Applicant:
Inventors:
Marcus Abele, Marxzell-Burbach, DE;
Thomas Glas, Rheingelden, DE;
Andreas Von Känel, Waiblingen, DE;
Walter Krepulat, Stuttgart, DE;
Martin Lechner, Stuttgart, DE;
Christoph Steinmetz, Ludwigsburg, DE;
Frank Sticher, Bad Homburg, DE;
Assignee:
Mahle Ventiltrieb GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02N 3/00 ;
U.S. Cl.
CPC ...
F02N 3/00 ;
Abstract
The invention relates to a hollow-stem valve for an internal combustion engine. The valve has a ratio of wall thickness to stem diameter of less than 1:3. The aim of the invention is to minimize the deformation of the valve head. To this end, the valve disk rests directly against the stem.