Patent · US Expired

Device for measuring the lift of poppet valves

US7121300B2 · kind B2 · utility

2Cited by

1References

7Claims

0Family size

Assignee

Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

Rudolf Kragl · Zolling, DE
Rolf Connert · Munich, DE
Martin Lorscheid · Munich, DE
Till Scheffler · Munich, DE

Key dates

Filing date	May 6, 2005
Grant date	Oct 17, 2006
Priority date	—
Expiry date	May 6, 2025

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/8242
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for measuring the height of lift of poppet valves, in particular for poppet valves installed in internal combustion engines, with the help of inductive pickups, including a coil in a stationary mount and a metal sleeve which is in flush alignment in the valve shaft and is axially movable in the coil, and the sleeve is secured with axial play within the groove.

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