INTEGRATED NOX TRAP AND PARTICULATE FILTER FOR INTERNAL COMBUSTION ENGINES

Oxides of nitrogen are adsorbed onto the surfaces of, and particulates are trapped in, pores of channels (130, 133, 139-151) in a porous, interdigitated ceramic particulate filter (57, 100) that has relative rotation with respect to a gas inlet distributor (76, 101). The distributor has a baffle (85...

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Bibliographische Detailangaben
Hauptverfasser:	BUGLASS, JOHN, G, LIU, KE, WNUCK, WAYNE, G
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL COMPOUNDS THEREOF 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 HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INORGANIC CHEMISTRY INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	Oxides of nitrogen are adsorbed onto the surfaces of, and particulates are trapped in, pores of channels (130, 133, 139-151) in a porous, interdigitated ceramic particulate filter (57, 100) that has relative rotation with respect to a gas inlet distributor (76, 101). The distributor has a baffle (85) or ribs (121, 122) that causes constantly flowing engine exhaust (53) to enter the filter channels over a large portion of a revolution of the adsorption bed or the distributor, and causes constantly flowing syngas (54) to thereafter pass through those passages during a small portion of each revolution. Either the inlet gas distributor (101) or the filter bed (57) may be rotated to distribute the gases. Dual, alternately regenerated filters (35, 36) may be used. La présente invention a trait à un filtre à particules (57, 100) en céramique poreux interdigité présentant une rotation relative par rapport à un distributeur d'orifice d'admission de gaz (76, 101) dans lequel des oxydes d'azote sont adsorbés sur les surfaces des pores des canaux (130, 133, 139-151), et des particules y sont piégées. Le distributeur comporte une chicane (85) ou des nervures (121, 122) qui entraîne en continu la pénétration des gaz d'échappement de moteur en circulation (56) dans des canaux du filtre sur une grande portion de la révolution du lit d'adsorption ou du distributeur, et ensuite entraîne en continu le passage de gaz de synthèse (54) à travers ces passages pendant une petite portion de chaque révolution. Soit le distributeur de gaz d'admission (101) ou le lit de filtre (57) peut être entraîné en rotation pour la distribution des gaz. On peut utiliser des filtres doubles à régénération alternée (35, 36).