Patent · US Active

Method for operating an injector

US8082903B2 · kind B2 · utility

4Cited by

7References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Hans-Peter Lehr · Stuttgart, DE
Erik Tonner · Mehring, DE

Key dates

Filing date	Nov 12, 2007
Grant date	Dec 27, 2011
Priority date	—
Expiry date	Sep 25, 2028

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/2051
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method is for operating an injector, in particular a fuel injector of an internal combustion engine in a motor vehicle, the injector having a piezoelectric actuator for driving a valve needle coupled, preferably hydraulically, to the actuator. Starting from a starting voltage corresponding to a first operating state of the injector, the actuator is recharged, i.e., charged or discharged, by a predefinable voltage swing to a target voltage corresponding to a second operating state of the injector.

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