Lightweight valve

US6354258B1 · kind B1 · utility

Assignee

• Mahle Ventiltrieb GmbH · DE

Inventors

• Marcus Abele · Gerlingen, DE
• Thomas GLAS · Winnenden, DE
• Andreas Von Känel · Waiblingen, DE
• Walter Krepulat · Stuttgart, DE
• Martin Lechner · Lindlar, DE
• Christoph Steinmetz · Ludwigsburg, DE
• Frank Sticher · Bad Homburg vor der Höhe, DE

Key dates

• Filing date: Aug 1, 2000
• Grant date: Mar 12, 2002
• Expiry date: Aug 1, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49307
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

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.