EP0153157A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Catalytic converter
Assignee: Honda Motor Co Ltd
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Filing: 1985-02-14
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Granted: —
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Expires: 2005-02-14
Abstract
Abstract A catalytic converter for an internal combustion engine, wherein first and second filters S1 and S2 and a catalyst carrier Ca are mounted in a casing C in series, the first filter being adapted to remove solid catalyst-poisoning substances, the second filter adapted to remove gaseous catalyst-poisoning substances, and the thus filtered exhaust gas then being catalytically converted by the catalyst carrier which has an extended useful life by reason of the removal of catalyst-poisoning substances by the first and second filters. The filters are honeycomb type monolithic ceramic units.
Inventors
- 👤 Youichi Goryozono
- 👤 Hiroaki Hishida
- 👤 Sakuji Arai
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/24; F01N3/28; F01N3/2839; F01N3/2853; F01N13/00; F01N13/009; F01N13/0097; F01N3/02; F01N3/021; F01N3/0211; F01N3/2857; F01N3/2867; F01N3/2875; F01N3/2882; F01N2250/00; F01N2250/02; F01N2330/00; F01N2330/06; F01N2350/00; F01N2350/02; F01N2350/06; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
A catalytic converter having a casing with an inlet and an outlet for exhaust gas, a first filter mounted in said casing for receiving exhaust gas from said inlet and having means for removing at least a substantial portion of any catalyst-contaminating solid particles in the exhaust gas, a second filter mounted in said casing for receiving the exhaust gas after it has passed through said first filter and having means for removing a substantial portion of any catalyst-contaminating gases in the exhaust gas, and a catalyst carrier mounted in said casing between said second filter and said outlet for receiving the exhaust gas from said second filter and having means for catalytically converting noxious gases in the exhaust gas before the exhaust gas passes to said outlet.
Claim 2
Dependent Claim
128 words
A catalytic converter having a casing with an inlet and an outlet for exhaust gas, a first filter mounted in said casing for receiving exhaust gas from said inlet and having means for removing at least a substantial portion of any catalyst-contaminating solid particles in the exhaust gas, a second filter mounted in said casing for receiving the exhaust gas after it has passed through said first filter and having means for removing a substantial portion of any catalyst-contaminating gases in the exhaust gas, and a catalyst carrier mounted in said casing between said second filter and said outlet for receiving the exhaust gas from said second filter and having means for catalytically converting noxious gases in the exhaust gas before the exhaust gas passes to said outlet.
Claim 3
Dependent Claim
20 words
A catalytic converter as claimed in claim 1, wherein the said first filter is a honeycomb type monolithic ceramic unit.
Claim 4
Dependent Claim
22 words
A catalytic converter as claimed in claim 1 or 2, wherein the said second filter is a honeycomb type monolithic ceramic unit.
Claim 5
Dependent Claim
26 words
A catalytic converter as claimed in any of claims 1 to 3, wherein the said first filter has larger openings therethrough than the said second filter.
References Cited (Backward Citations)
No citation records indexed.
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