Patent · US Active

Method of making an outer lever of a switchable finger lever

US7761988B2 · kind B2 · utility

30Cited by

10References

10Claims

0Family size

Assignee

Schaeffler KG · DE

Inventors

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

Key dates

Filing date	Jun 2, 2004
Grant date	Jul 27, 2010
Priority date	—
Expiry date	Nov 13, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49995
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 a cup-shaped base body (16) having an inverse U-shaped cross-section is deep drawn, and opposing running contact surfaces (14, 15) for high-lift cams are created on arms (4, 5) of the outer lever (1) by punching out a bottom (19) of the base body (16). 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.