Patent · US Expired

Multipart composite valve for an internal combustion engine

US7552911B2 · kind B2 · utility

3Cited by

8References

7Claims

0Family size

Assignee

Daimler AG · DE

Inventors

Holger Stark · Allmersbach im Tal, DE
Martin Schlegl · Weingarten, DE

Key dates

Filing date	Aug 16, 2004
Grant date	Jun 30, 2009
Priority date	—
Expiry date	Nov 1, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7036
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A multipart composite valve for an internal combustion engine, in which a valve shaft (2) and a valve plate (4) are embodied separately while being joined together in an overlapping area (6). The invention is characterized in that at least some parts of the valve shaft (2) are provided with an intermediate layer (8) in the overlapping area (6). Said intermediate layer (8) forms an integral joint with both the valve shaft (2) and the valve plate (4) in the form of a chemical bond, the valve plate (4) being cast onto the valve shaft (2).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.