Please download the dossier by clicking on the dossier button x
×

Exhaust purification system of internal combustion engine

  • US 10,598,062 B2
  • Filed: 12/14/2017
  • Issued: 03/24/2020
  • Est. Priority Date: 12/27/2016
  • Status: Active Grant
First Claim
Patent Images

1. An exhaust purification system of an internal combustion engine comprising:

  • a filter arranged in an exhaust passage of the internal combustion engine and trapping particulate matter contained in exhaust gas,an oxidation catalyst arranged in the exhaust passage at an upstream side from the filter in a direction of exhaust flow,a fuel feed device comprising one or more of an exhaust fuel injector and a cylinder fuel injector feeding fuel to the oxidation catalyst, anda control device configured to control the feed of fuel by the fuel feed device, wherein the control device is configured to feed liquid state fuel from the fuel feed device to the oxidation catalyst so as to remove particulate matter deposited on the oxidation catalyst when judging that a percentage of soluble organic fractions (SOF) in particulate matter deposited on the oxidation catalyst is a predetermined value or less.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×