Title:
FILTER AND EXHAUST-GAS PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO2008059726
Kind Code:
A8
Abstract:
A filter (10) for removing harmful substances contained in a discharge gas is constituted so as to have, upstream in a discharge gas passage, a first region where a harmful substance is removed by the effect of blocking inertial movement and further have, downstream therein, a second region where a harmful substance is removed by adsorption. A metallic catalyst (13) including a hydrocarbon adsorbent is deposited in the first region, and a metallic catalyst (14) including a material having the ability to occlude oxygen is deposited in the second region. Thus, a system for filtration and discharge-gas purification is provided which combines the collecting function of a filter with the oxidizing function of a catalyst and has a high collection efficiency, low-temperature activity, and low pressure loss.
Inventors:
OOSUMI KAZUO (JP)
Application Number:
PCT/JP2007/071495
Publication Date:
August 21, 2008
Filing Date:
November 05, 2007
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
OOSUMI KAZUO (JP)
OOSUMI KAZUO (JP)
International Classes:
F01N3/02; B01D53/94; B01J23/63; B01J29/068; F01N3/10; F01N3/24; F01N3/28
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