Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Patent
1994-01-24
1995-08-29
Housel, James C.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing gas sample
422 90, 422 94, 204429, 73 3106, G01N 2700
Patent
active
054457963
ABSTRACT:
A porous alumina coating layer covering an oxide semiconductor type or solid electrolyte type oxygen concentration sensor carrys a catalyst (Pt/Rh) for accelerating equilibration reaction of an unburnt gas in exhaust gas from an automobile engine. The deterioration of the catalyst activity can be prevented by incorporating a thermal stability improving agent into the alumina coating layer.
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Housel James C.
Soderquist Arlen
Toyota Jidosha & Kabushiki Kaisha
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