公开(公告)号：US11135577B2

公开(公告)日：2021-10-05

申请号：US16633522

申请日：2018-06-22

Applicant: CATALER CORPORATION

Inventor： Yuki Fujimura ,  Akio Kubota ,  Naoki Yokoyama ,  Junichi Hori

IPC: B01J35/04 ,  F01N3/28 ,  B01D53/94 ,  B01J23/63 ,  F01N3/022

Abstract: The invention provides: an exhaust-gas-purifying metal substrate capable of achieving both low pressure loss and high purification performance; and an exhaust gas purification device using the metal substrate. The invention relates to an exhaust-gas-purifying perforated metal substrate in which a corrugated foil and a flat foil are layered and made into a cylindrical shape, wherein: the perforated metal substrate includes from 50/in2 to 800/in2 of cells; the corrugated foil includes a plurality of first holes having an area that is from 2.0 to 50 times the average opening area of the cells; the flat foil includes a plurality of second holes having an area that is from 3.0 to 100 times the average opening area of the cells; and the average value of the area of the first holes in the corrugated foil is smaller than the average value of the area of the second holes in the flat foil.

公开(公告)号：US11998874B2

公开(公告)日：2024-06-04

申请号：US17419583

申请日：2020-02-05

Applicant: CATALER CORPORATION

Inventor： Naoki Yokoyama ,  Akio Kubota ,  Nobuaki Bando ,  Chihiro Kasuya

IPC: B01J23/63 ,  B01D53/94 ,  B01J35/04 ,  F01N3/28

CPC classification number: B01D53/94 ,  F01N3/2817 ,  F01N3/2821 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  F01N2330/04 ,  F01N2330/38

Abstract: A perforated metallic base material for purging exhaust is obtained by laminating a wavy foil having pores and a flat foil having pores and forming the same into a cylindrical shape, wherein the wavy foil and/or the flat foil has axially perforated portions having pores throughout the axial direction of the cylindrical shape and axially non-perforated portions not having pores overall in the axial direction of the cylindrical form.

公开(公告)号：US11291951B2

公开(公告)日：2022-04-05

申请号：US16099163

申请日：2017-05-17

Applicant: CATALER CORPORATION

Inventor： Yoritsugu Shino ,  Tsuyoshi Ito ,  Keisuke Murashige ,  Akio Kubota

IPC: B01D53/94 ,  B01J23/58 ,  F01N3/10 ,  F01N3/28 ,  F02B63/02 ,  B01D53/86 ,  B01J23/63 ,  B01J23/00 ,  B01J23/56 ,  B01J21/04

Abstract: An exhaust gas purifying catalyst for 2-stroke general-purpose engines, which is characterized in that: the exhaust gas purifying catalyst includes a base and a coat layer on the base; the coat layer contains noble metals and metal oxides; the noble metals include palladium and one or more elements selected from among platinum and rhodium; the zirconia content in the coat layer is 0.07 mole or less per 100 g of the metal oxides contained in the coat layer; and the total content of one or more metal oxides selected from among lanthana and alkaline earth metal oxides in the coat layer is 0.05 mole or more per 100 g of the metal oxides contained in the coat layer.