Patent · US Active

Reciprocating piston internal combustion engine and method for determining the wear of a transmission element arranged between a crankshaft and a camshaft

US8132549B2 · kind B2 · utility

5Cited by

3References

10Claims

0Family size

Assignee

Schaeffler Technologies AG & Co. KG · DE

Inventors

Heiko Dell · Bühl, DE
Jens Schafer · Herzogenaurach, DE
Thomas Pfund · Leiberstung, DE

Key dates

Filing date	Jul 8, 2006
Grant date	Mar 13, 2012
Priority date	—
Expiry date	Jun 22, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/001
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for determining a wear value of a transmission element between a crankshaft and a camshaft of a reciprocating piston internal combustion engine, in particular a timing chain or toothed belt, is provided. The camshaft is driven by the transmission element via a drive part, for example a camshaft gearwheel. In each case, at least one measurement value for the phase position of the drive part relative to the crankshaft is determined at time intervals during which the crankshaft drives the camshaft, and the wear value is determined from the difference between the measurement values.

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