Patent · US Active

Exhaust gas treatment apparatus functionality check

US9616387B2 · kind B2 · utility

5Cited by

3References

20Claims

0Family size

Assignee

Perkins Engines Company Limited · GB

Inventor

Antony J. Eager · Peterborough, GB

Key dates

Filing date	Jul 24, 2013
Grant date	Apr 11, 2017
Priority date	—
Expiry date	Oct 12, 2033

Classification

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

Abstract

An exhaust fluid treatment apparatus used to treat exhaust fluid emitted by a combustion engine includes a check of its functionality. A method of monitoring operation of an exhaust fluid treatment apparatus includes comparing a calculated temperature difference with an expected temperature difference associated with combustion of fuel. If the calculated temperature difference is within an acceptable margin of the expected temperature difference, further fuel injection may be permitted. If the calculated temperature difference is outside the acceptable margin of the expected temperature difference, a temperature of the exhaust gas upstream of the exhaust fluid treatment apparatus may be increased.

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