SYSTEM FOR PREVENTING THE ACCUMULATION OF UNBURNED HYDROCARBONS IN A LINE OF EXHAUST GAS AFTER TREATMENT SYSTEM OF AN INTERNAL COMBUSTION ENGINE
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United States of America Patent
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Aug 27, 2015
app pub date -
Feb 25, 2015
filing date -
Feb 26, 2014
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Abstract
A system for preventing the accumulation of unburned hydrocarbons in a line of exhaust gas after-treatment system of an internal combustion engine comprising at least one devise for the reduction of pollutant emissions, wherein the exhaust gas after treatment system is devoid of any pre-catalyst and a procedure is envisioned for the continuous estimation of a mass of unburned hydrocarbons stored at least in the device for the reduction of pollutant emissions, so as to activate a strategy for accelerating the heating of the exhaust line, when the mass of unburned hydrocarbons exceeds a predefined threshold.
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