Vacuum-insulated exhaust treatment devices, such as catalytic converters, with passive controls

A thermally-activated exhaust treatment device, such as a catalytic converter ( 20 ); for vehicles includes a core having an inner housing ( 21 ) and a catalytic material ( 27, 27 '). A jacket includes an outer housing ( 22 ) enclosing the inner housing ( 21 ) but characteristically not contact...

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Bibliographische Detailangaben
Hauptverfasser:	BENSON DAVID K, BIEL, JR. JOHN P, RIGSBY DONALD R, HILL, JR. FREDERICK B, TRACY C. EDWIN, BURCH STEVEN D, MEWS LANCE, KEYSER MATTHEW A
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A thermally-activated exhaust treatment device, such as a catalytic converter ( 20 ); for vehicles includes a core having an inner housing ( 21 ) and a catalytic material ( 27, 27 '). A jacket includes an outer housing ( 22 ) enclosing the inner housing ( 21 ) but characteristically not contacting the inner housing ( 21 ). The inner and outer housings ( 21, 22 ) includes walls ( 30, 31 ) forming a vacuum-drawn scaled insulation cavity ( 26 ) around the inner housing ( 21 ). A temperature-activated variable insulator device is positioned within the outer housing ( 22 ) and includes a hydrogen source ( 32 ) and controls for controlling the variable insulator device. A vacuum-maintenance device is incorporated into the insulation cavity ( 26 ), and includes a small container, getter material positioned in the container, a porous member allowing gas in the insulation cavity ( 26 ) to communicate with the getter material. A multi-layered radiation shield is position in the vacuum space and is loosely coupled to the inner housing ( 21 ). A vacuum detector includes a visible indicator of the vacuum in the insulation cavity ( 26 ).