Invention Grant
- Patent Title: Particulate filter
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Application No.: US17285290Application Date: 2019-10-30
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Publication No.: US11454149B2Publication Date: 2022-09-27
- Inventor: Ryota Onoe , Ryo Tasaki , Momoko Iwai , Yamato Matsushita
- Applicant: CATALER CORPORATION
- Applicant Address: JP Shizuoka
- Assignee: CATALER CORPORATION
- Current Assignee: CATALER CORPORATION
- Current Assignee Address: JP Shizuoka
- Agency: Occhiuti & Rohlicek LLP
- Priority: JPJP2018-215005 20181115
- International Application: PCT/JP2019/042464 WO 20191030
- International Announcement: WO2020/100582 WO 20200522
- Main IPC: F01N3/021
- IPC: F01N3/021 ; B01D46/24 ; B01D53/94 ; B01J23/63 ; B01J35/04 ; F01N3/28 ; F01N3/022 ; F01N3/10 ; F01N3/20

Abstract:
Provided is a particulate filter in which a PM collection rate is stably increased. The particulate filter according to the present invention includes a substrate 10 having a wall flow structure having a porous partition wall 16 that partitions an inlet cell and an outlet cell, and a wash coat layer held on surfaces of internal pores of the partition wall. In addition, average filling rates A, B, and C of the wash coat layer measured for each predetermined pore diameter range in the internal pores satisfy specific relationships. Further, the wash coat layer is formed in a region that occupies 50% or more of a thickness of the partition wall, and an amount of a noble metal catalyst carried by the wash coat layer is 0 g/L or more but 0.2 g/L or less.
Public/Granted literature
- US20210381413A1 PARTICULATE FILTER Public/Granted day:2021-12-09
Information query
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