Method and device for dosing a liquid reducing agent
AssigneePUReM Abgassysteme GmbH & Co. KG
InventorWerner Overhoff
Life of this patent
Estimating the term…
Abstract
A method and a device for dosing a liquid reducing agent for denoxing the exhaust gases of a diesel engine, wherein the reducing agent is delivered to the exhaust gas system of the diesel engine via a dosing valve. The reducing agent is cooled for the elimination of gas bubbles entrained in the reducing agent present at the input side of the dosing valve.
Claims13
A method for dosing a liquid reducing agent for denoxing the exhaust gases of a diesel engine having a denoxing system, the method comprising:
- delivering a specific quantity of reducing agent by means of a dosing valve for the introduction into an exhaust gas system of the diesel engine;
- and
- cooling the reducing agent supplied to the dosing valve causing the condensation of gaseous reducing agent phases and eliminating any gas bubbles entrained in the reducing agent present at an input side of the dosing valve.
A device for dosing a liquid reducing agent for the supply into the exhaust gas system of a diesel engine having a denoxing system, the device comprising:
- a tank holding the reducing agent;
- a dosing valve having an input side connecting the tank by a first supply line and an output side connecting into a second supply line;
- and
- a cooling device on the first supply line on the input side of the dosing valve for cooling the reducing agent present at an input side of the dosing valve.
Dependencies are inferred from the claim text.