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公开(公告)号：US10201805B2
公开(公告)日：2019-02-12
申请号：US15518086
申请日：2015-10-06
Applicant: CATALER CORPORATION
Inventor： Tatsuya Ohashi , Shingo Sakagami , Tsuyoshi Ito , Ryota Onoe , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
IPC: B01J23/00 , B01J23/10 , B01J23/63 , B01D53/94 , B01J35/04 , F01N3/10 , F01N3/28 , F01N3/02 , F01N3/022 , F01N3/023 , F01N3/035 , B01J35/00 , B01J35/10 , B01J37/02 , F01N3/08
Abstract: A exhaust gas purification apparatus is provided with; a substrate having a wall-flow structure and including entry-side cells, exit-side cells, and a porous partition; a first catalyst region formed in small diameter pores having relatively small pore diameters among internal pores in the partition; and a second catalyst region formed in large diameter pores having relatively large pore diameters among the internal pores in the partition. The first catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support, while the second catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support and other than at least the precious metal present in the first catalyst region.
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公开(公告)号：US10357744B2
公开(公告)日：2019-07-23
申请号：US15515830
申请日：2015-10-06
Applicant: CATALER CORPORATION
Inventor： Tatsuya Ohashi , Shingo Sakagami , Tsuyoshi Ito , Ryota Onoe , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
IPC: F01N3/28 , B01D53/94 , F01N13/00 , B01J23/63 , B01J35/00 , B01J35/04 , F01N3/035 , B01J37/02 , B01J23/40
Abstract: An exhaust gas purification device of the present invention is provided with: a substrate of wall flow structure having an inlet cell, an outlet cell and a porous partition wall; an upstream catalyst layer, provided inside the partition wall and disposed in an upstream portion of the substrate including an exhaust gas inflow end section; and a downstream catalyst layer, provided inside the partition wall and disposed in a downstream portion of the substrate including an exhaust gas outflow end section. The upstream catalyst layer and the downstream catalyst layer each contain a carrier and at least one noble metal from among Pt, Pd and Rh, supported on the carrier. The noble metal in the upstream catalyst layer and the noble metal in the downstream catalyst layer are different from each other.
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公开(公告)号：US10159934B2
公开(公告)日：2018-12-25
申请号：US15550070
申请日：2016-02-16
Applicant: CATALER CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ichiro Kitamura , Keiichi Narita , Yasutaka Nomura , Ryota Onoe , Yuta Morishita , Junji Kuriyama , Hiroshi Sekine , Akihito Inoue , Daisuke Ochiai , Jun Sawada , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato , Atsushi Tanaka
Abstract: Provided is an exhaust gas purification catalyst that combines reduction of pressure loss and enhancement of purification performance. This invention provides an exhaust gas purification catalyst comprising a wall-flow-type substrate and first and second catalytic layers. The first catalytic layer is provided to the interior of a partition wall, in contact with an entrance cell, from an exhaust inlet-side end in the running direction, having a length L1 less than Lw. The second catalytic layer is provided to the interior of a partition wall, in contact with an exit cell, from an exhaust outlet-side end in the running direction, having a length L2 less than Lw. An internal portion of partition wall in contact with entrance cell has a substrate-exposing segment near the exhaust outlet-side end.
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Patent Agency Ranking
公开(公告)号：US10076725B2
公开(公告)日：2018-09-18
申请号：US15550078
申请日：2016-02-16
Applicant: CATALER CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ryota Onoe , Shingo Sakagami , Yasutaka Nomura , Yuta Morishita , Junji Kuriyama , Hiroshi Sekine , Daisuke Ochiai , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
IPC: B01J23/10 , B01J23/44 , B01J23/46 , B01J23/63 , B01J35/00 , B01J35/04 , B01D53/94 , F01N3/10 , F01N3/08 , F01N3/28
CPC classification number: B01D53/945 , B01D53/94 , B01D2255/1023 , B01D2255/1025 , B01D2255/9022 , B01D2255/908 , B01D2255/9155 , B01J23/63 , B01J35/0006 , B01J35/04 , F01N3/0222 , F01N3/035 , F01N3/0864 , F01N3/10 , F01N3/281 , F01N2330/02 , F01N2510/0682 , F01N2510/0684
Abstract: A wall-flow-type exhaust gas purification catalyst with an oxygen storage material that has an increased OSC and exhibits its OSC without a compromise provides an exhaust gas purification catalyst having a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. The second catalytic layer is provided to an internal portion of a partition wall in contact with an exit cell. Each of the first and second catalytic layers has an oxygen storage material. The ratio (D1/D2) of the coating density D1 of the first catalytic layer to the coating density D2 of the second catalytic layer is 1.1 to 1.8.
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公开(公告)号：US10344655B2
公开(公告)日：2019-07-09
申请号：US15518011
申请日：2015-10-07
Applicant: CATALER CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Yuta Morishita , Masahiko Takeuchi , Naoto Miyoshi , Akemi Sato , Daisuke Ochiai
Abstract: An exhaust gas purification catalyst having an excellent exhaust partition ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes a substrate having a wall-flow structure with partition wall, upstream coating section formed in portions of partition wall facing entrance cell, from exhaust inlet-side end in the extending direction of partition wall, and downstream coating section formed in portions of partition wall facing exit cell, from exhaust outlet-side end in the extending direction, having a length shorter than the entire length Lw of the partition wall. In downstream coating section, a catalytic metal is concentrated in the surface layer in contact with exit cell.
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公开(公告)号：US10183253B2
公开(公告)日：2019-01-22
申请号：US15517978
申请日：2015-10-06
Applicant: CATALER CORPORATION
Inventor： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Tatsuya Ohashi , Naoto Miyoshi , Masahiko Takeuchi , Akemi Sato
IPC: B01D53/94 , B01J23/63 , B01J35/04 , B01J35/00 , F01N3/035 , B01J23/42 , B01J23/44 , B01J23/46 , F01N3/28
Abstract: The exhaust gas purification device is provided with a wall flow structure substrate that has an entry-side cell, an exit-side cell and a porous partition, first catalyst parts which are formed in small pores having a relatively small pore diameter among internal pores in the partition, and second catalyst parts which are formed in large pores having a relatively large pore diameter among the internal pores in the partition. The first catalyst parts and the second catalyst parts each contain a carrier and at least one type of noble metal from among Pt, Pd and Rh supported on the carrier. The noble metal content in the first catalyst parts is smaller than the noble metal content in the second catalyst parts per 1 liter of substrate volume.
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公开(公告)号：US10159935B2
公开(公告)日：2018-12-25
申请号：US15517990
申请日：2015-10-07
Applicant: CATALER CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Masahiko Takeuchi , Naoto Miyoshi , Akemi Sato
Abstract: An exhaust gas purification catalyst having an excellent exhaust gas purification ability while reducing the increase in pressure loss. Exhaust gas purification catalyst includes entrance cell, exit cell, and a wall-flow substrate having partition wall to separate these cell, a catalytic layer formed from exhaust inlet-side ends in the extending direction in sections of the interior of partition wall facing entrance cell, and a catalytic layer formed on the surface of partition wall facing exit cell from exhaust outlet-side ends in the extending direction of partition wall, having a length shorter than the entire partition wall length.
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公开(公告)号：US10125649B2
公开(公告)日：2018-11-13
申请号：US15517311
申请日：2015-10-07
Applicant: CATALER CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ryota Onoe , Shingo Sakagami , Tsuyoshi Ito , Masahiko Takeuchi , Naoto Miyoshi , Akemi Sato
IPC: F01N3/28 , B01D53/94 , B01J35/04 , F01N3/022 , F01N3/035 , B01J21/04 , B01J23/10 , B01J23/42 , B01J23/44 , B01J23/46 , B01J35/00 , B01J37/02 , B01J37/08
Abstract: An exhaust gas purification catalyst that has an excellent exhaust gas purification performance while suppressing pressure loss increases. The exhaust gas purification catalyst is provided with a substrate having a wall-flow structure and having a partition; a first catalyst layer formed, in a region of an interior part of the partition that is in contact with an entrance cell, along the extending direction of the partition from an exhaust gas inflow-side end for less than the total length Lw of the partition; and a second catalyst layer formed, in a region of an interior part of the partition that is in contact with an exit cell, along the extending direction of the partition from the exhaust gas outflow-side end for less than the total length Lw of the partition. The first catalyst layer and the second catalyst layer are configured to partially overlap with each other in the extending direction.
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