Patent EP0417412A2 successfully refreshed from Google Patents.
EP0417412A2
Expired / Lapsed
EP
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Exhaust system for multi-cylinder internal combustion engines
Assignee: Dr Ing HCF Porsche AG
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Filing: 1990-06-28
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Granted: —
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Expires: 2010-06-28
Abstract
Abstract In order to reduce the emission of exhaust gases from engines (1) by earlier actuation of the catalytic converters, a starting catalytic converter (6) is inserted into each exhaust gas line (2, 3, 4, 5) leaving the cylinder head. The starting catalytic converters (6) are de-activated by the opening of bypass ducts (8) as soon as the main catalytic converter (16) connected downstream from them has an adequate operating temperature. <IMAGE>
Inventors
- 👤 Dusan Prof. Dipl.-Ing. Gruden
- 👤 Erwin Dipl.-Ing. Rutschmann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 13:55
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/08; F01N3/10; F01N3/18; F01N3/20; F01N3/2053; F01N3/2006; F02; F02D; F02D9/00; F02D9/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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