Invention Grant
- Patent Title: Exhaust gas purification apparatus
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Application No.: US15518086Application Date: 2015-10-06
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Publication No.: US10201805B2Publication Date: 2019-02-12
- Inventor: Tatsuya Ohashi , Shingo Sakagami , Tsuyoshi Ito , Ryota Onoe , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
- Applicant: CATALER CORPORATION
- Applicant Address: JP Kakegawa
- Assignee: CATALER CORPORATION
- Current Assignee: CATALER CORPORATION
- Current Assignee Address: JP Kakegawa
- Agency: Oliff PLC
- Priority: JP2014-213110 20141017
- International Application: PCT/JP2015/078408 WO 20151006
- International Announcement: WO2016/060029 WO 20160421
- Main IPC: B01J23/00
- IPC: B01J23/00 ; B01J23/10 ; B01J23/63 ; B01D53/94 ; B01J35/04 ; F01N3/10 ; F01N3/28 ; F01N3/02 ; F01N3/022 ; F01N3/023 ; F01N3/035 ; B01J35/00 ; B01J35/10 ; B01J37/02 ; F01N3/08

Abstract:
A exhaust gas purification apparatus is provided with; a substrate having a wall-flow structure and including entry-side cells, exit-side cells, and a porous partition; a first catalyst region formed in small diameter pores having relatively small pore diameters among internal pores in the partition; and a second catalyst region formed in large diameter pores having relatively large pore diameters among the internal pores in the partition. The first catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support, while the second catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support and other than at least the precious metal present in the first catalyst region.
Public/Granted literature
- US20180001308A1 EXHAUST GAS PURIFICATION APPARATUS Public/Granted day:2018-01-04
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