Device and method for reduction of a gas component in an...

Details Device and method for reduction of a gas component in an... Device and method for reduction of a gas component in an...

2002-11-04

2011-11-29

Nguyen, Tu (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S278000, C060S280000, C060S286000, C095S011000, C095S273000

Reexamination Certificate

active

08065870

ABSTRACT:
Method and device for reduction of a gas component in an exhaust gas flow of a combustion engine (1) that is adapted for operation by a lean air/fuel mixture. An exhaust pipe (21) is included for transport of the exhaust gas flow from the engine (1). A separation unit (22) is also included that is arranged along the exhaust pipe (21), which separation unit (22) has a wall structure (32) of a material which provides separation of the gas component from the exhaust gas flow by means of a selective passage of the gas component before other gas components in the exhaust gas flow. The method provides for a reduction and a separation unit that is intended to be utilized during such a reduction. An improved reduction of in particular NOxcompounds from a so-called “lean-burn” engine is also provided.

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Tavolaro, Adalgisa and Driolo, Enrico,Zeolite Membranes, Advanced Materials 1999, 11, No. 12, pp. 975-996, © Wiley-VCH Verlag GmbH, D-69469 Weinheim, 1999.
Office Action issued in JP App. No. 2001-579952; May 31, 2010.

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