Invention Grant
- Patent Title: Catalytic converter
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Application No.: US14912967Application Date: 2014-08-12
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Publication No.: US09597660B2Publication Date: 2017-03-21
- Inventor: Yuki Aoki
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Aichi-ken
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Aichi-ken
- Agency: Sughrue Mion, PLLC
- Priority: JP2013-172137 20130822
- International Application: PCT/IB2014/001506 WO 20140812
- International Announcement: WO2015/025200 WO 20150226
- Main IPC: B01J23/00
- IPC: B01J23/00 ; B01J23/10 ; B01D53/94 ; B01J37/02 ; B01J23/63 ; B01J35/04 ; B01J37/00 ; B01J35/00

Abstract:
A catalytic converter (10) includes a base material and a catalyst layer (3). The catalyst layer has a lower catalyst layer (4) and an upper catalyst layer (5). The upper catalyst layer is constituted by a first upper catalyst layer (6) and a second upper catalyst layer (7). The first upper catalyst layer is formed of a first carrier, which is formed of a ceria-containing oxide, and rhodium supported on the first carrier. The second upper catalyst layer is formed of a second carrier and rhodium supported on the second carrier. The second carrier does not contain ceria and is formed of one oxide selected from among zirconia and alumina. A length of the first upper catalyst layer is X % (30 to 70%) of an overall length of the base material. A length of the second upper catalyst layer is 100−X % of the overall length of the base material.
Public/Granted literature
- US20160199812A1 CATALYTIC CONVERTER Public/Granted day:2016-07-14
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