ELECTRICALLY-HEATED CATALYTIC CONVERTER

ELECTRICALLY-HEATED CATALYTIC CONVERTER

An electrically-heated catalytic converter includes: a substrate made of ceramic, the substrate including a catalyst coated layer; electrode films (2) made of ceramic, the electrode films being disposed on a surface of the substrate; electrode terminals (3) made of ceramic, each of them being secure...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MORI, Rentaro, KAMIYA, Sumio
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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
STEAM ENGINES
THEIR RELEVANT APPARATUS
TRANSPORTING
WEAPONS
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Beschreibung
Zusammenfassung:An electrically-heated catalytic converter includes: a substrate made of ceramic, the substrate including a catalyst coated layer; electrode films (2) made of ceramic, the electrode films being disposed on a surface of the substrate; electrode terminals (3) made of ceramic, each of them being secured to a corresponding one of the electrode films; and external electrodes (5) each attached to a corresponding electrode terminal via brazing filler metal (4). A thermal expansion coefficient of the brazing filler metal is equal to or higher than a thermal expansion coefficient of the electrode terminals, and is equal to or lower than a thermal expansion coefficient of the external electrodes. The thermal expansion coefficient of each of the electrode terminals decreases from a portion at which the electrode terminal is joined to the brazing filler metal toward a portion at which the electrode terminal is joined to the corresponding electrode film.