Patent ID: 8857160
Filing Date: 2014-10-14
Classification: B60K,F01N,Y02A,Y02T

Abstract:
1. A dosing system for introducing a reducing agent into the exhaust tract of an internal combustion engine, the dosing system comprising a fuel tank having an outer wall, a collecting sump disposed at least partially within the fuel tank and having a wall of the collecting sump separated from the outer wall of the fuel tank, and a standard reservoir for holding the reducing agent, the standard reservoir being disposed at least partially within the fuel tank and having a wall separated from both the outer wall of the fuel tank and the wall of the collecting sump, the wall of the collecting sump being disposed between the wall of the standard reservoir and the outer wall of the fuel tank, the dosing system further comprising a delivery unit, a level sensor, and a dosing module, wherein the reducing agent held in the standard reservoir is heated by warmed fuel flowing back into the fuel tank, and returning fuel flows along the wall of the standard reservoir and collects in the collecting sump underneath the standard reservoir.