Patent · US Active

Method for enriching the exhaust gas of an internal combustion engine with reducing agent and internal combustion engine for performing such a method

US9169754B2 · kind B2 · utility

1Cited by

1References

10Claims

0Family size

Assignee

Ford Global Technologies, LLC · US

Inventors

Matthew Allen Schneider · Aachen, DE
Kim Ford · Basildon, GB
Javier Castellano · Romford, GB
Dirk Roemer · Cologne, DE
Frank Linzen · Aachen, DE
Yasser Mohamed sayed Yacoub · Cologne, DE

Key dates

Filing date	Jul 16, 2013
Grant date	Oct 27, 2015
Priority date	—
Expiry date	Sep 20, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A method for enriching the exhaust gas of an internal combustion engine with a reducing agent is provided, the internal combustion engine including at least one cylinder and having an intake system for admission of charge air, an exhaust gas discharge system for discharging exhaust gases, and at least one exhaust gas aftertreatment system for reducing nitrogen oxides arranged in the exhaust gas discharge system and which is periodically provided with a supply of reducing agent. The method comprises enriching the exhaust gas with the reducing agent in the exhaust gas discharge system upstream of at least the one exhaust gas aftertreatment system when a fuel supply of the at least one cylinder of the internal combustion engine is deactivated due to an absence of load demand.

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