Invention Application
- Patent Title: EXHAUST PURIFICATION FILTER
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Application No.: US17599540Application Date: 2019-03-29
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Publication No.: US20220170397A1Publication Date: 2022-06-02
- Inventor: Chiaki SEKI , Yusuke IMAI , Atsushi FURUKAWA , Yuichi MATSUO , Naohiro SATO
- Applicant: HONDA MOTOR CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: HONDA MOTOR CO., LTD.
- Current Assignee: HONDA MOTOR CO., LTD.
- Current Assignee Address: JP Tokyo
- International Application: PCT/JP2019/014004 WO 20190329
- Main IPC: F01N3/035
- IPC: F01N3/035 ; F01N3/022 ; F01N3/10

Abstract:
The present invention provides an exhaust purification filter with which pressure loss can be reduced, the filter having high exhaust purification performance and granular-substance-filtering performance. The exhaust purification filter comprises a filter base material having a wall flow structure, and an exhaust purification catalyst supported on a dividing wall of the filter base material, the exhaust purification filter being such that: a median pore diameter (D50) of the filter base material according to a volumetric basis is 15 μm or greater; and the exhaust purification catalyst is unevenly supported on a high-density layer, in which the density of the exhaust purification catalyst is relatively high, and a low-density layer, in which the density of the exhaust purification catalyst is relatively low.
Public/Granted literature
- US12152518B2 Exhaust purification filter Public/Granted day:2024-11-26
Information query
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