公开(公告)号：US20180179937A1

公开(公告)日：2018-06-28

申请号：US15809203

申请日：2017-11-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryohei YAMAMOTO ,  Toshihiro MORI

IPC: F01N3/20 ,  F01N3/035 ,  F01N9/00 ,  F01N3/025 ,  F01N11/00

CPC classification number: F01N3/2033 ,  F01N3/021 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/36 ,  F01N9/002 ,  F01N11/002 ,  F01N13/009 ,  F01N2250/02 ,  F01N2260/04 ,  F01N2550/02 ,  F01N2560/06 ,  F01N2610/03 ,  Y02T10/47

Abstract: An exhaust purification system of an internal combustion engine 1 comprises: a filter 29 arranged in an exhaust passage of the internal combustion engine and trapping particulate matter contained in exhaust gas, a catalyst 28 arranged in the exhaust passage at an upstream side from the filter in a direction of exhaust flow or supported on the filter, a fuel feed device 3, 35 feeding fuel to the catalyst, and a control device 80 configured to control the feed of fuel by the fuel feed device. The control device is configured to feed fuel from the fuel feed device to the catalyst so as to burn off particulate matter trapped at the filter as processing for filter regeneration, and feed liquid state fuel from the fuel feed device to the catalyst after the processing for filter regeneration.

公开(公告)号：US20180179934A1

公开(公告)日：2018-06-28

申请号：US15841634

申请日：2017-12-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Ryohei YAMAMOTO ,  Toshihiro MORI

IPC: F01N3/025 ,  F01N3/20 ,  F01N9/00

CPC classification number: F01N3/0253 ,  F01N3/2033 ,  F01N9/002 ,  F01N2260/04 ,  F01N2610/03 ,  F01N2900/1404 ,  F01N2900/1606 ,  Y02T10/26 ,  Y02T10/47

Abstract: The exhaust purification system of an internal combustion engine 1 comprises: a catalyst 28 arranged in an exhaust passage 27 of the internal combustion engine, a fuel feed device 3, 35 feeding fuel to the catalyst, and a control device 80 configured to control the feed of fuel by the fuel feed device. The control device is configured to feed liquid state fuel from the fuel feed device to the catalyst when judging that a ratio of high viscosity components in particulate matter deposited on the catalyst is a predetermined value or less.