Patent · US Expired

Apparatus and method for valve control

US6062533A · kind A · utility

50Cited by

6References

31Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Andreas Kappel · Höhenkirchen-Siegertsbrunn, DE
Randolf Mock · Munich, DE
Hans Meixner · Haar, DE

Key dates

Filing date	May 14, 1999
Grant date	May 16, 2000
Priority date	—
Expiry date	May 14, 2019

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2200/706
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A wall-controllable primary drive, for example a piezo actuator, guided in a first bore transfers its stroke motion-commutated onto a secondary-side lifter element guided in a second bore, transmitting said stroke by a piston-hydraulic stroke transmission on the basis of a hydraulic chamber. The pressure in a valve chamber is controlled via secondary-side lifter element.

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