The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2018
Filed:
Jan. 29, 2016
Honda Motor Co., Ltd., Tokyo, JP;
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Ryosaku Takahara, Wako, JP;
Koichi Inaba, Wako, JP;
Nobuhiro Komatsu, Wako, JP;
Masafumi Sakota, Wako, JP;
Takahiro Kogawa, Ageo, JP;
Michitaka Yamaguchi, Ageo, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
MITSUI MINING & SMELTING CO., LTD., Tokyo, JP;
Abstract
An exhaust gas purification device is equipped with: an NOx purification unit disposed in exhaust gas piping of an engine supporting an NOx storage catalyst (NSC); a catalyzed soot filter (CSF) disposed downstream of the NOx purification unit supporting a particulate combustion catalyst causing captured particulates to combust; and an electronic control unit (ECU) which controls exhaust gas flowing into the NSC to be rich and which, by raising the temperature of the NSC, acts as a regeneration device that causes sulfur components captured in the NSC to be desorbed. The particulate combustion catalyst is provided where Ag and Pd have been alloyed on an AlOcarrier; the quantity of Ag supported by the AlOcarrier is 1.2-2.5 g/L; the quantity of Pd supported by the AlOcarrier is 0.7 g/L or less; and the ratio Ag/Pd of the Ag support quantity to the Pd support quantity is 1.7-8.3.