公开(公告)号：US09732648B2

公开(公告)日：2017-08-15

申请号：US14430763

申请日：2014-10-15

Applicant: MAZDA MOTOR CORPORATION

Inventor： Hiroshi Yamada ,  Masahiko Shigetsu ,  Hisaya Kawabata ,  Yasuhiro Matsumura ,  Kazuya Yokota ,  Toshihiko Ohsumi ,  Takeo Yamauchi ,  Yusuke Koike

IPC: F01N3/08 ,  B01J23/63 ,  B01J29/74 ,  B01J35/02 ,  B01J37/02 ,  F01N3/10 ,  F01N3/28 ,  B01D53/94 ,  F01N13/10

CPC classification number: F01N3/0814 ,  B01D53/9468 ,  B01D53/9486 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/20707 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/90 ,  B01D2255/9022 ,  B01D2255/9025 ,  B01J23/10 ,  B01J23/63 ,  B01J29/74 ,  B01J29/7415 ,  B01J35/0006 ,  B01J35/02 ,  B01J37/02 ,  B01J37/0236 ,  B01J37/0244 ,  B01J37/0246 ,  B01J37/0248 ,  B01J37/03 ,  B01J2523/00 ,  F01N3/0835 ,  F01N3/10 ,  F01N3/28 ,  F01N13/102 ,  F01N2510/0684 ,  B01J2523/31 ,  B01J2523/3706 ,  B01J2523/3712 ,  B01J2523/3725 ,  B01J2523/48 ,  B01J2523/824 ,  B01J2523/822 ,  B01J2523/41 ,  B01J2523/828

Abstract: An exhaust gas purification catalytic device 1 contains Pt, Pd, and Rh as catalytic metals. The catalytic metal Pt is loaded on silica-alumina which serves as a support, and Pt-loaded silica-alumina obtained by loading the Pt on the silica-alumina is contained in a catalytic layer with which an exhaust gas contacts first.