公开(公告)号：US20240352883A1

公开(公告)日：2024-10-24

申请号：US18640983

申请日：2024-04-19

申请人： Purem GmbH

发明人： Oleksandr Velyaev ,  Shengxiao Lin ,  Peter Kast

IPC分类号： F01N13/00 ,  F01N3/021 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28

CPC分类号： F01N13/0097 ,  F01N3/021 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/2882 ,  F01N3/2892 ,  F01N2610/1453

摘要： In a modularly configured exhaust gas treatment arrangement, a first module includes an entry interface and a first mixing section, a second module includes a first deflection housing and a first catalytic converter arrangement of a first exhaust gas treatment section. The second module is detachably connected to the first module and a third module includes a particle filter arrangement of the first exhaust gas treatment section. The third module is detachably connected to the second module and a fourth module includes a second deflection housing. The fourth module is detachably connected to the third module. A fifth module includes a second mixing section, a third deflection housing, and a second exhaust gas treatment section and the fifth module is detachably connected to the fourth module.

公开(公告)号：US12123333B2

公开(公告)日：2024-10-22

申请号：US18057375

申请日：2022-11-21

申请人： SAUDI ARABIAN OIL COMPANY

发明人： Emmanuel Laigle ,  Christophe Chaillou ,  Caroline Norsic ,  André Nicolle

IPC分类号： F01N3/08 ,  B01D46/00 ,  B01D53/04 ,  B01D53/94 ,  F01N3/031 ,  F01N3/10 ,  F01N3/28 ,  F01N11/00 ,  F01N13/00

CPC分类号： F01N3/0842 ,  B01D46/0036 ,  B01D53/04 ,  B01D53/9454 ,  B01D53/9495 ,  F01N3/031 ,  F01N3/101 ,  F01N3/2825 ,  F01N11/002 ,  F01N13/009 ,  B01D2253/102 ,  B01D2253/108 ,  B01D2259/4566 ,  B01D2279/30 ,  F01N2370/04

摘要： An exhaust treatment system includes an engine, an exhaust line in fluid communication with the engine, a three-way catalyst downstream of the engine on the exhaust line, a particulate filter downstream of and proximate to the three-way catalyst on the exhaust line, and a sorbent unit comprising a first sorbent and a second sorbent downstream of the three-way catalyst and the particulate filter on the exhaust line. The first sorbent and the second sorbent are proximate to a tailpipe of the exhaust line. A method of treating an exhaust emission from an internal combustion engine during an engine cold-start is also described.

公开(公告)号：US12115520B2

公开(公告)日：2024-10-15

申请号：US17936090

申请日：2022-09-28

申请人： Jonhson Matthey (Shanghai) Chemicals Limited

发明人： Dongsheng Qiao ,  Jingwen Wang ,  Xiang Zheng

IPC分类号： B01J21/04 ,  B01D53/86 ,  B01J21/06 ,  B01J23/10 ,  B01J23/89 ,  B01J35/00 ,  F01N3/10

CPC分类号： B01J23/8926 ,  B01D53/86 ,  B01J21/04 ,  B01J21/066 ,  B01J23/10 ,  B01J23/8906 ,  B01J35/19 ,  F01N3/101 ,  F01N3/106 ,  B01D2255/1021 ,  B01D2255/20738 ,  B01D2255/20761

摘要： A three-way catalyst article, and its use in an exhaust system for compressed natural gas engines, is disclosed. The catalyst article for treating exhaust gas from compressed natural gas (CNG) engine comprising: a substrate comprising an inlet end, an outlet end with an axial length L; a first catalytic region beginning at the outlet end and extending for less than the axial length L, wherein the first catalytic region comprises a first zeolite; and a second catalytic region beginning at the inlet end, wherein the second catalytic region comprises a second platinum group metal (PGM) component, a second oxygen storage capacity (OSC) material, and a second inorganic oxide; wherein the second PGM component is selected from the group consisting of palladium, platinum, rhodium or a combination thereof.

公开(公告)号：US20240337209A1

公开(公告)日：2024-10-10

申请号：US18749501

申请日：2024-06-20

申请人： Cummins Inc.

发明人： Arun Shori Su Sundaravel Damotharan ,  Sergio M. Hernandez-Gonzalez ,  Joshua Edward Supplee

IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N3/20

CPC分类号： F01N11/00 ,  F01N3/106 ,  F01N3/2066 ,  F01N2430/06 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0408 ,  F01N2900/0411 ,  F01N2900/08 ,  F01N2900/1602 ,  F01N2900/1616 ,  F01N2900/1622

摘要： A system includes a controller having at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, causes the controller to: receive data indicative of operating conditions of at least one of an engine or of an aftertreatment system; determine, during a first period of time, that an amount of NOx output from the aftertreatment system satisfies a low NOx operating mode condition based on the data indicative of operating conditions; determine, during a second period of time, that operating conditions for a conversion efficiency are present based on the data indicative of the operating conditions of the aftertreatment system; determine that the amount of NOx output from the aftertreatment system satisfies a high NOx operating mode condition; and selectively set an alert based on a retrieved minimum value and a retrieved maximum value of the amount of NOx outputs.

公开(公告)号：US20240328336A1

公开(公告)日：2024-10-03

申请号：US18692365

申请日：2022-09-22

申请人： FPT INDUSTRIAL S.P.A.

发明人： Clino D'EPIRO

IPC分类号： F01N3/20 ,  F01N3/021 ,  F01N3/10

CPC分类号： F01N3/2066 ,  F01N3/021 ,  F01N3/101 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2900/1602

摘要： A Diesel engine and an exhaust gas after-treatment device operatively associated with an exhaust manifold of the Diesel engine, the after-treatment device comprising in succession a Barium-loaded three-way catalyst, an anti-particulate filter and a selective reducing catalyst equipped with a relative dosing device of urea-based reducing agent.

公开(公告)号：US12104514B2

公开(公告)日：2024-10-01

申请号：US17283729

申请日：2019-10-17

申请人： UMICORE AG & CO. KG

发明人： Jan Schoenhaber ,  Joerg-Michael Richter ,  Carolin Braun

IPC分类号： B01J23/44 ,  B01J23/46 ,  B01J35/00 ,  B01J35/30 ,  F01N3/035 ,  F01N3/10 ,  F01N3/08

CPC分类号： F01N3/101 ,  B01J23/44 ,  B01J23/464 ,  B01J35/30 ,  F01N3/035 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/0857 ,  F01N2250/02

摘要： Subject of the invention is an exhaust gas purification system for a gasoline engine, comprising in consecutive order the following devices:
a first three-way-catalyst (TWC1), a gasoline particulate filter (GPF) and a second three-way-catalyst (TWC2),
wherein the wash coat load (WCL) of the GPF is greater than the WCL of the TWC2, wherein the WCL is determined in g/l of the volume of the device.
The invention also relates to methods in which the system is used and uses of the system.

公开(公告)号：US12097483B2

公开(公告)日：2024-09-24

申请号：US17600640

申请日：2020-03-31

申请人： HEESUNG CATALYSTS CORPORATION

发明人： Do-kyun Lee ,  Sang-yun Han ,  Seung Chul Na

IPC分类号： B01J23/42 ,  B01J23/44 ,  B01J35/00 ,  B01J37/02 ,  F01N3/10

CPC分类号： B01J23/44 ,  B01J35/19 ,  B01J37/0215 ,  F01N3/101

摘要： Disclosed is an exhaust gas purification catalyst with a multilayered structure including an ultra-thin layer with a thickness of 20 micrometers or less and containing Rh, Pd, or both as at least one precious metal component, and to a method of manufacturing the same. The method includes a step of forming an ultra-thin layer having a thickness of 20 micrometers or less as the top layer of the catalyst by applying a polymer coating solution containing a polymer having a functional group capable of chelating with the precious metal component(s) on the surface of the multilayer structure of the catalyst. The disclosed catalyst exhibits improved removal efficiency for THC, CO, and NOx contained compared to an existing thin film-type catalyst. Since the disclosed catalyst is coated with a thin coating layer containing at least a portion of precious metal components, the disclosed catalyst exhibits improved performance while using the same amount of precious metal components as in conventional catalysts.

公开(公告)号：US12092001B2

公开(公告)日：2024-09-17

申请号：US18355334

申请日：2023-07-19

申请人： Robert Bosch GmbH

发明人： Thomas Zein ,  Andreas Fritsch ,  Michael Bachner

IPC分类号： F01N11/00 ,  B01D46/42 ,  B01D46/44 ,  B01D53/94 ,  F01N3/027 ,  F01N3/10 ,  F01N3/20 ,  F02D41/02 ,  F02D41/22

CPC分类号： F01N11/002 ,  B01D46/4263 ,  B01D46/444 ,  B01D46/448 ,  B01D53/9495 ,  F01N3/027 ,  F01N3/101 ,  F01N3/106 ,  F01N3/108 ,  F01N3/2013 ,  F01N3/2066 ,  F02D41/0235 ,  F02D41/222 ,  B01D2258/01 ,  B01D2273/20 ,  B01D2279/30 ,  F01N2550/02 ,  F01N2550/04 ,  F01N2550/05 ,  F02D2041/228

摘要： A method for controlling an internal combustion engine including at least one exhaust-gas aftertreatment component having an electric heating element, the electric heating element heating the exhaust-gas aftertreatment component and the exhaust gas flowing through the exhaust-gas aftertreatment component, the electric heating element briefly or permanently being acted upon by a heating current, a gas, in particular fresh air and/or exhaust gas, flowing downstream through the exhaust-gas path. In the method, a first temperature upstream from the at least one exhaust-gas aftertreatment component is ascertained, a second temperature downstream from the exhaust-gas aftertreatment component is ascertained, and the exhaust-gas mass flow of the internal combustion engine is ascertained as a function of a first temperature difference between the first and the second temperature and a heating power of the electric heating element, and the internal combustion engine is controlled as a function of the exhaust-gas mass flow.

公开(公告)号：US20240287945A1

公开(公告)日：2024-08-29

申请号：US18658202

申请日：2024-05-08

申请人： Daniel R. Cohn ,  Leslie Bromberg ,  Howard Gruenspecht

发明人： Daniel R. Cohn ,  Leslie Bromberg ,  Howard Gruenspecht

IPC分类号： F02D29/06 ,  F01N3/10 ,  F01N3/20 ,  F02B43/10 ,  H02J7/14 ,  H02K7/18

CPC分类号： F02D29/06 ,  F01N3/101 ,  F01N3/2066 ,  F02B43/10 ,  H02J7/14 ,  H02K7/1815 ,  F01N2610/02 ,  F02B2043/103

摘要： Modestly modified automotive engine powered generator systems to substantially improve capability for providing renewable electricity powered grid reliability and energy storage are disclosed. The use of these engines to improve capability for non-grid electricity generation, including affordable and clean fast charging of electric vehicles, is also disclosed. In one embodiment, these automotive engines use high RPM and stoichiometric air fuel ratio operation so as to provide the advantages of substantially reduced cost and NOx emissions. These engines also have multifuel capability that provides highly flexible use of low carbon fuels (such as hydrogen, methanol and ammonia) as well as the use of present fuels that are widely available. When these low-carbon fuels are produced with excess electricity from the grid and supplied to the grid when there is an electricity-supply shortfalls, they can serve as a means of energy storage.

公开(公告)号：US12071906B2

公开(公告)日：2024-08-27

申请号：US17935495

申请日：2022-09-26

申请人： Woodward, Inc.

发明人： Domenico Chiera ,  Gregory James Hampson

IPC分类号： F02D41/00 ,  F01N3/10 ,  F02D41/40 ,  F02D41/38

CPC分类号： F02D41/0025 ,  F01N3/10 ,  F02D41/009 ,  F02D41/402 ,  F02D2041/389 ,  F02D2200/024

摘要： The subject matter of this specification can be embodied in, among other things, a method performed in connection with an internal combustion engine, and the method including receiving a pressure signal from a combustion chamber pressure sensor during a first range of volumes, the first range corresponding to a portion of a compression phase, the received pressure being a first pressure, providing, based on the received pressure signal, a first pulse of fuel at a first position of the body during the compression phase, and providing, based on the received pressure signal a second pulse of fuel at a second position of the body during the compression phase.