Patent · US Active

Gas direct injector with reduced leakage

US9453486B1 · kind B1 · utility

2Cited by

6References

19Claims

0Family size

Assignee

Continental Automotive Systems Inc. · US

Inventors

Michael J. Hornby · Williamsburg, US
Klaus Husslein · Regensburg, DE
Harry Schüle · Neunburg vorm Wald, DE
Christopher Heukenroth · Berlin, DE
Wolfram Klemp · Berlin, DE
Thomas Komischke · Berlin, DE
Thomas Gerlach · Neukirchen-Vluyn, DE

Key dates

Filing date	Mar 20, 2015
Grant date	Sep 27, 2016
Priority date	—
Expiry date	Mar 20, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An injector has an inlet and an outlet and an armature tube having passage structure and having a distal end spaced from the outlet. The passage structure communicates with the inlet. A movable, magnetic armature is coupled to the armature tube. An electromagnetic coil is associated with a stator and with the armature. A first spring is constructed and arranged, when the coil is not activated, to bias the armature tube so that the distal end engages in a sealing manner with a first seat to limit leakage of the gaseous fuel from the outlet. A second valve is movable in a valve body. A second spring is constructed and arranged, when the coil is not activated, to bias the second valve so that a seating surface thereof engages a second seat to close the outlet.

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