Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
Pressure detection mechanism for exhaust emission control device of internal combustion engine
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.
Toyota Jidosha Kabushiki Kaisha Kabushiki Kaisha Toyota Jidoshokki
F F F F F F F F F Y F
F01N F01N F01N F01N F01N F01N F01N F01N F02B Y02T F01N
inventional additional inventional additional inventional inventional additional inventional additional additional inventional
Kazutaka Hiroaki Masataka
Fujii Ito Miyazaki