Invention Grant
- Patent Title: Exhaust gas purification filter
- Patent Title (中): 废气净化过滤器
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Application No.: US10022414Application Date: 2001-12-20
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Publication No.: US06790248B2Publication Date: 2004-09-14
- Inventor: Mikio Ishihara , Mamoru Nishimura , Hirohumi Yamashita
- Applicant: Mikio Ishihara , Mamoru Nishimura , Hirohumi Yamashita
- Priority: JP2000-393021 20001225; JP2001-326481 20011024
- Main IPC: B01D4600
- IPC: B01D4600

Abstract:
An exhaust gas filter is capable of suppressing the generation of an excessive pressure loss due to the particulates deposited. At least a part of a multiplicity of cells surrounded by partitioning walls of the honeycombed exhaust gas purification filter have plugs on one of their two end portions. At least a part of the cells to be arranged on the downstream side in the fluid path are partial plugs having openings allowing the fluid flow. The pressure loss caused when the fluid entering the cells passes through the partitioning walls is smaller than the pressure loss caused when the exhaust gas passes through the partial plugs.
Public/Granted literature
- US20020078667A1 Exhaust gas purification filter Public/Granted day:2002-06-27
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