Patent · US Active

Fuel injector, method for ascertaining the position of a movable armature, and motor control

US10920728B2 · kind B2 · utility

0Cited by

2References

19Claims

0Family size

Assignee

VITESCO TECHNOLOGIES GMBH · DE

Inventors

Hong Zhang · Schwieberdingen, DE
Nikolay Belyaev · Regensburg, DE
Anatoliy Lyubar · Regensburg, DE
Gerd Rösel · Dresden, DE
Markus Stutika · Regensburg, DE

Key dates

Filing date	Mar 9, 2018
Grant date	Feb 16, 2021
Priority date	—
Expiry date	Sep 17, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2007/1676
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A fuel injector for an internal combustion engine of a motor vehicle. The fuel injector including the following: (a) a pole piece, (b) an armature which can be moved along a movement axis, (c) a coil and (d) a permanent magnet, wherein the movable armature has at least one electrically insulating element which is designed to reduce eddy currents in the armature, and wherein the permanent magnet is fitted such that it generates a magnetic field which produces a force which acts on the armature in the direction of the pole piece. The invention also describes a method for ascertaining a position of a movable armature in a fuel injector and also an engine controller.

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