METHOD FOR INCREASING THE EFFICIENCY OF A CATALYST IN A DIESEL ENGINE

PCT No. PCT/IT95/00123 Sec. 371 Date Jan. 22, 1997 Sec. 102(e) Date Jan. 22, 1997 PCT Filed Jul. 21, 1995 PCT Pub. No. WO96/03572 PCT Pub. Date Feb. 8, 1996An injection method applicable to engines featuring a Denox catalyst for reducing the nitric oxide content of exhaust gas. In addition to the ma...

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Hauptverfasser:	ROSSI SEBASTIANO, GIOVANNI, MARIA, CANALE, SILVIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES 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 HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Zusammenfassung:	PCT No. PCT/IT95/00123 Sec. 371 Date Jan. 22, 1997 Sec. 102(e) Date Jan. 22, 1997 PCT Filed Jul. 21, 1995 PCT Pub. No. WO96/03572 PCT Pub. Date Feb. 8, 1996An injection method applicable to engines featuring a Denox catalyst for reducing the nitric oxide content of exhaust gas. In addition to the main injection phase, the method presents a post-injection phase predominantly performed during the exhaust stroke of the engine, so that the diesel fuel injected does not contribute-or only to a very limited extent-towards combusion, but is supplied directly to the Denox catalyst to increase its efficiency. The method involves no alterations to the injection system, by virtue of post-injection being controlled and optimized by the central unit controlling injection as a whole.