COMPOSITION FOR CLEANING DPF FILTERS FOR DIESEL ENGINE EXHAUST GASES AND METHOD FOR CLEANING THE SAME
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United States of America Patent
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Issued Date -
Nov 10, 2022
app pub date -
May 18, 2020
filing date -
Jul 1, 2019
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Abstract
The present invention relates to a chemical composition that removes accumulated impurities from a DPF in an easy and fast manner. The filter does not need to be removed from the vehicle, as cleaning is done by injecting the liquid through the temperature probe opening, and the chemical composition used is completely biodegradable. Cleaning with the chemical composition of the invention is not time consuming, is easy to perform and, results in completely purified DPF. Presented chemical composition for cleaning DPFs comprises alkyl sulfonic acid and distilled water, wherein the alkyl sulfonic acid is a short alkyl chain sulfonic acid with up to 4 carbon atoms (methane sulfonic acid, ethane sulfonic acid, propane sulfonic acid or butane sulfonic acid), with methane sulfonic acid being preferred due to its properties and availability.
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