Patent · US Active

Method of determining operation of an SCR reductant doser

US10711675B2 · kind B2 · utility

2Cited by

0References

11Claims

0Family size

Assignee

Delphi Technologies IP Limited · BB

Inventors

Martin A. P. Sykes · Rainham, GB
Simon R. Panteny · Ashford, GB

Key dates

Filing date	Dec 6, 2016
Grant date	Jul 14, 2020
Priority date	—
Expiry date	Jul 14, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

In a selective catalytic reductant dosing system including a reductant injector adapted to inject liquid reductant into an exhaust line, a method of analyzing flow of reductant through the injector includes determining a measure of the temperature of the injector prior to activation of the injector. The method also includes activating the injector and determining a measure of the temperature of the injector subsequent to activation of the injector. The method also includes analyzing the flow of reductant through the injector consequential to the activation by analyzing changes in the measure of temperature of the injector prior to activation and the measure of temperature of the injector subsequent to activation.

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