Honda Motor Co., Ltd.

Hitachi, Ltd.

Nippon Steel Materials Co., Ltd.

Hiroki Hosoe

Takeshi Mori

Tetsuo Endo

Hidehiro Iizuka

Masato Kaneeda

Yuichi Matsuo

Norihiko Suzuki

Masahiro Sakanushi

Masafumi Taki

Takahiro Matsuoka

Norihiro Shinotsuka

Tatsuya Okayama

Shinya Ishimaru

Osami Yamamoto

Satoshi Ino

Keita Ishizaki

Toshio Iwasaki

Akira Murakami

Kengo Takamizawa

Masayuki Kasuya

Shogo Konya

Kimihiro Tokushima

Yusuke Marui

Norihiro Hitachi Ltd IntPropGr Shinotsuka

Masato Hitachi Ltd Int Prop Group Kaneeda

Shogo Nippon Steel Materials Co Ltd Konya

Masahiro Sakansuhi

Hidehiro Hitachi Ltd Int Prop Gr Iizuka

An exhaust gas cleaner which can attain an improvement in the efficiency of particulate filter regeneration and has excellent durability. The exhaust gas cleaner, which purifies an exhaust gas discharged from an internal combustion engine, comprises: a gas channel through which the exhaust gas flows; and a DPF () disposed in the gas channel and having many pores. The DPF () has an introduction surface () which comes into contact with the exhaust gas, the surface () having been almost wholly coated with a microporous material () having micropores with a smaller pore diameter than the pores. This microporous material () comprises a support made of an oxygen-storing/releasing oxide having one or more elements selected from the group consisting of alkaline earth metal elements, transition metal elements, Group-12 elements, and Group-13 elements and a silver-containing catalyst deposited on the support.

Exhaust gas cleaner

A Cr trapping agent is disposed so that it contacts with constituting components of the substrate containing Cr. As the Cr trapping agent, an element or Ag is used, wherein the element is stronger in basicity than alkali metals or alkaline earth metals. Since the Cr trapping agent prevents transfer of Cr towards the alkali metals or alkaline earth metals, the reaction between Cr and alkali metals or alkaline earth metals is prevented.

Exhaust gas purification apparatus for an internal combustion engine and a catalyst for purifying exhaust gas

A catalyst coatingfor decomposing ozone in the air is applied to an outer surface of cooling pipesand radiating finsof a radiator. A peel sensoris provided on the catalyst coatingof the radiatorto detect a loss (remaining amount) of the catalyst coating. The position of detection of the peel sensoris determined according to a temperature characteristic of the radiator, and a flow rate of the air passing through the radiator. The position of detection of the peel sensorcan be determined easily and appropriately, such that loss and deterioration of the catalyst coatingcan be detected with high precision.

Catalyst detector for vehicle

Growing community of inventors

Saitama, Japan

Hiroki Hosoe