Patent · US Expired

Arrangement for rotary angle positioning of a camshaft relative to the crank shaft of an internal combustion engine

US6374785B1 · kind B1 · utility

3Cited by

2References

13Claims

0Family size

Assignee

INA Wälzlager Schaeffler oHG · DE

Inventors

Jens Schafer · Herzogenaurach, DE
Martin Steigerwald · Herzogenaurach, DE
Matthias Kapp · Oak Park, US

Key dates

Filing date	Jul 10, 2000
Grant date	Apr 23, 2002
Priority date	—
Expiry date	Jul 10, 2020

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2001/34479
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

This invention pertains to a vane-cell positioning device with an external rotor (1) driven by the crankshaft of an internal combustion engine and an internal rotor (2) fixed to and turning with a camshaft which has pivoting vanes (15) that fit inside vane mounting notches (16), said vanes being loaded with pressurized oil in hydraulic work spaces (31) of the external rotor (1).The danger of the pivoting vanes (15) lifting off of the radial sealing surfaces is eliminated by loading the bottoms of the pivoting vanes (15) with pressurized oil as the internal combustion engine is running.

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