Method for supplying reductant to an aftertreatment system
AssigneeGM Global Technology Operations LLC
InventorsKevin L. Perry, Thompson M. Sloane, Jong H. Lee
Life of this patent
Estimating the term…
Abstract
A method for supplying reductant into an exhaust gas feedstream for an internal combustion engine includes storing a fuel/reductant blend in the fuel storage and delivery system, separating the reductant from the fuel/reductant blend, storing the reductant in a reductant storage tank, and injecting the reductant into the exhaust gas feedstream upstream of the aftertreatment device.
Claims19
Method for supplying a reductant into an exhaust gas feedstream upstream of an aftertreatment device for an internal combustion engine including a fuel storage and delivery system, the method comprising:
- storing a fuel/reductant blend in the fuel storage and delivery system;
- separating the reductant from the fuel/reductant blend;
- storing the reductant in a reductant storage tank;
- and
- injecting the reductant into the exhaust gas feedstream upstream of the aftertreatment device.
Method for supplying a reductant into an exhaust gas feedstream upstream of an aftertreatment device for an internal combustion engine including a fuel storage and delivery system, the method comprising:
- separating the reductant from the fuel/reductant blend with a reductant separation system;
- storing a fuel/reductant blend in the fuel storage and delivery system;
- and
- injecting the separated reductant in the exhaust gas feedstream upstream of the aftertreatment device.
System for supplying a reductant into an exhaust gas feedstream upstream of an aftertreatment system for an internal combustion engine including a fuel storage and delivery system, the system including:
- a reductant separation system for separating reductant from the fuel/reductant blend and fluidly connected to the fuel storage and delivery system;
- a reductant storage tank fluidly connected to the reductant separation system;
- and
- a reductant injection device fluidly connected to the reductant storage tank and configured to inject the reductant into the exhaust gas feedstream upstream of the aftertreatment device.
Dependencies are inferred from the claim text.