EXHAUST APPARATUS AND SADDLE RIDE TYPE VEHICLE

To provide an exhaust device capable of improving production efficiency. An exhaust device (10) includes: an upstream catalyst (21), into which exhaust gas richer than a stoichiometric mixture flows from an engine; a secondary-air supply pipe (23), via which secondary air is added to the exhaust gas...

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Bibliographic Details
Main Authors TAKII, OSAMU, NISHIMURA, HIDEHIRO
Format Patent
LanguageEnglish
French
German
Published 15.06.2011
Subjects
BLASTING
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
STEAM ENGINES
THEIR RELEVANT APPARATUS
TRANSPORTING
WEAPONS
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Summary:To provide an exhaust device capable of improving production efficiency. An exhaust device (10) includes: an upstream catalyst (21), into which exhaust gas richer than a stoichiometric mixture flows from an engine; a secondary-air supply pipe (23), via which secondary air is added to the exhaust gas; and a downstream catalyst (22) provided at a location downstream from the secondary-air supply pipe (23). A component having a highest content among components of a catalyst material of the upstream catalyst (21) is the same as a component having a highest content among components of a catalyst material of the downstream catalyst (22).
Bibliography:Application Number: EP20080776995