Patent · US Active

Method and device for detecting the commencement of opening of a nozzle needle

US10174701B2 · kind B2 · utility

0Cited by

5References

8Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Frank Denk · Obertraubling, DE
Nikolay Belyaev · Regensburg, DE
Christian Hauser · Lappersdorf, DE
Anatoliy Lyubar · Regensburg, DE
Gerd Roesel · Regensburg, DE
Markus Stutika · Regensburg, DE

Key dates

Filing date	Mar 5, 2015
Grant date	Jan 8, 2019
Priority date	—
Expiry date	Mar 5, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2041/2058
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for detecting the commencement of opening of the nozzle needle of an injector of an injection system. In the detection method, the coil of the solenoid injector has a voltage applied to it which is so low that the armature is moved toward the nozzle needle at such a low speed that the abutment causes a stoppage of the armature movement, without the nozzle needle being opened. In this case, the idle travel is overcome, but no injection process is initiated. The abutment of the armature against the nozzle needle is detected, in the current profile, as the commencement of opening of the nozzle needle.

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