Patent · US Expired

Device for adjusting the angle of rotation of a camshaft with regard to the crankshaft of a reciprocating internal combustion engine

US6487996B1 · kind B1 · utility

4Cited by

4References

10Claims

0Family size

Assignee

INA Wälzlager Schaeffler oHG · DE

Inventors

Thomas Motz · Herzogenaurach, DE
Jochen Auchter · Weisendorf, DE
Torsten Keller · Prüm, DE

Key dates

Filing date	Nov 7, 2001
Grant date	Dec 3, 2002
Priority date	—
Expiry date	Nov 7, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2102
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for the angular adjustment of a camshaft relative to a crankshaft of an internal combustion piston engine, particularly a vane-type adjuster comprising a stator and a rotor arranged coaxially to the stator, vanes of the rotor being pivotable by oil pressure in pressure chambers defined by radial walls of the stator. Fabrication work is reduced compared to stators and rotors made by sinter pressing by the fact that the stator and the rotor are comprised respectively of a stack of stator blanks (2, 2′) and a stack of rotor blanks (3, 3′), said blanks are made preferably by punching and are firmly connected to one another.

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