Pressure detection mechanism for exhaust emission control...

Details Pressure detection mechanism for exhaust emission control... Pressure detection mechanism for exhaust emission control...

2004-09-13

2008-10-07

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

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

C060S282000, C060S295000, C060S301000

Reexamination Certificate

active

07430856

ABSTRACT:
A pressure detection mechanism for a catalyst of an engine, in which the catalyst includes an upstream NSR catalyst and a downstream DPNR catalyst stored in a catalyst casing, which includes a DPNR front pressure detection pipe connected to a space formed by the NSR catalyst, the DPNR catalyst and the catalyst casing, a DPNR rear pressure detection pipe downstream of the DPNR catalyst connected to a space formed by the DPNR catalyst and the catalyst casing, and a pressure difference transducer connected to the DPNR front pressure detection pipe and the DPNR rear pressure detection pipe.

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