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Title:
EXHAUST GAS PURIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/175574
Kind Code:
A1
Abstract:
An exhaust gas purification device according to the present invention is provided with: a wall-flow-structure substrate 10 having entry cells 12, exit cells 14, and porous partitions 16; upstream-side catalyst layers 20 provided in the partitions 16 and disposed in the upstream-side portion, including the end part on the exhaust gas inflow side, of the substrate 10; and downstream-side catalyst layers 30 provided in the partitions 16 and disposed in the downstream-side portion, including the end part on the exhaust gas outflow side, of the substrate 10. The downstream-side catalyst layers 30 include a carrier and Rh carried by the carrier. The upstream-side catalyst layers 20 include a carrier and Pd and/or Pt carried by the carrier.

Inventors:
INODA, Satoru (7800 Chihama Kakegawa-sh, Shizuoka 92, 〒4371492, JP)
NOMURA, Yasutaka (7800 Chihama Kakegawa-sh, Shizuoka 92, 〒4371492, JP)
KURIYAMA, Junji (7800 Chihama Kakegawa-sh, Shizuoka 92, 〒4371492, JP)
MIYOSHI, Naoto (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
TAKEUCHI, Masahiko (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
SATO, Akemi (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
Application Number:
JP2017/011150
Publication Date:
October 12, 2017
Filing Date:
March 21, 2017
Export Citation:
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Assignee:
CATALER CORPORATION (7800 Chihama, Kakegawa-shi Shizuoka, 92, 〒4371492, JP)
International Classes:
B01D53/94; B01J23/63; B01J35/04; F01N3/022; F01N3/035; F01N3/28
Domestic Patent References:
WO2015087816A12015-06-18
Foreign References:
JP2008151100A2008-07-03
JP2012240007A2012-12-10
JP2016078016A2016-05-16
JP2007185571A2007-07-26
JP2007185571A2007-07-26
JP2009082915A2009-04-23
Other References:
See also references of EP 3434356A4
Attorney, Agent or Firm:
ABE Makoto (Kyodo Patent Law Firm, 47KT Bldg. 10th Floor, 3-20-3, Marunouchi, Naka-ku, Nagoya-sh, Aichi 02, 〒4600002, JP)
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