Patent · US Active

Method of making an outer lever of a switchable finger lever

US7797830B2 · kind B2 · utility

0Cited by

11References

8Claims

0Family size

Assignee

Schaeffler KG · DE

Inventors

Bodo Rorig · Herzogenaurach, DE
Peter Spitzer · Emskirchen, DE

Key dates

Filing date	Jun 2, 2004
Grant date	Sep 21, 2010
Priority date	—
Expiry date	Feb 12, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49295
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

According to the present invention, an outer lever (1) of a finger lever (2) that can be switched to different lifts for at least one gas exchange valve is made by a deep drawing method. A salient feature of the invention is that through a special trimming operation of the cup-shaped base body (16) that is formed in a first step of the method, running contact surfaces (14, 15) for cams, preferably high-lift cams, are generated on upper sides (12, 13) of arms (4, 5) of the outer lever (1). Through the deep drawing method of the invention, only relatively low fabrication costs are to be expected.

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