公开(公告)号：US12173632B2

公开(公告)日：2024-12-24

申请号：US18033021

申请日：2021-10-21

Applicant: Cummins Emission Solutions Inc.

Inventor： Ryan M. Johnson ,  Matthew K. Volmerding ,  Jacob D. Canik ,  Pranjal Naik

IPC: F01N3/00 ,  F01N3/021 ,  F01N3/28 ,  F01N13/00

Abstract: An exhaust gas aftertreatment system includes a housing assembly, a first catalyst member, and a second catalyst member. The housing assembly includes an upstream housing, a decomposition housing, a distributing housing, and a catalyst member housing. The upstream housing is centered on an upstream housing axis. The decomposition housing is coupled to the upstream housing and configured to receive exhaust gas from the upstream housing. The distributing housing is coupled to the decomposition housing and configured to receive the exhaust gas from the decomposition housing. The catalyst member housing is coupled to the distributing housing and configured to receive the exhaust gas from the distributing housing. The catalyst member housing is centered on a catalyst member housing axis that is parallel to the upstream housing axis. The first catalyst member extends within the catalyst member housing.

公开(公告)号：US12123335B2

公开(公告)日：2024-10-22

申请号：US18560246

申请日：2022-03-24

Applicant: HITACHI ZOSEN CORPORATION

Inventor： Susumu Hikazudani ,  Takahiro Fujibayashi ,  Emi Shono

IPC: F01N3/00 ,  F01N3/20 ,  F01N3/24 ,  F02D19/02

CPC classification number: F01N3/2006 ,  F01N3/24 ,  F02D19/02 ,  F02D2200/0802

Abstract: An exhaust gas treatment apparatus includes a treatment cabinet and a catalyst part. To the treatment cabinet, introduced is exhaust gas of an engine which uses gas containing methane as a fuel. The catalyst part is accommodated in the treatment cabinet and oxidizes unburned methane contained in the exhaust gas. When a temperature of the catalyst part is lower than a predetermined normal operating temperature, the catalyst part oxidizes carbon monoxide contained in the exhaust gas and uses oxidation reaction heat of carbon monoxide, to thereby raise the temperature of the catalyst part up to the normal operating temperature or higher. Even when the temperature of the exhaust gas supplied to the catalyst part is lower than the normal operating temperature, it is thereby possible to quickly raise the temperature of the catalyst part up to the normal operating temperature por higher.

公开(公告)号：US12085001B2

公开(公告)日：2024-09-10

申请号：US18343660

申请日：2023-06-28

Applicant: PACCAR Inc

Inventor： Cynthia Chaffin Webb ,  Charles Wayne Reinhardt Swart ,  Maarten Meijer ,  Varun Ramesh ,  John Lahti

IPC: F01N3/00 ,  F01N3/035 ,  F01N3/20 ,  F01N3/28

CPC classification number: F01N3/2066 ,  F01N3/035 ,  F01N3/2892 ,  F01N2240/20 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/146

Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.

公开(公告)号：US20240034165A1

公开(公告)日：2024-02-01

申请号：US17875005

申请日：2022-07-27

Applicant: Saudi Arabian Oil Company

Inventor： Samusideen Adewale Salu ,  Hussain M. Bayat ,  Ali Mohammad Abbas

IPC: B60L53/20 ,  F01N5/02 ,  F01N3/00 ,  H01M10/44

CPC classification number: B60L53/20 ,  F01N5/025 ,  F01N3/005 ,  H01M10/44 ,  H01M2220/20

Abstract: A method of charging a battery of a hybrid vehicle includes operating an engine of the hybrid vehicle using fuel to cause the hybrid vehicle to move. The method further includes, while the hybrid vehicle is moving, converting thermal energy within flue gas exhausted from the engine into electricity and charging the battery with the electricity.

公开(公告)号：US20230265773A1

公开(公告)日：2023-08-24

申请号：US17651687

申请日：2022-02-18

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Emmanuel Laigle ,  Christophe Chaillou ,  Caroline Norsic ,  André Nicolle

IPC: F01N3/20 ,  F01N3/00 ,  F01N3/10 ,  B01D53/94 ,  B01D46/00 ,  B01D53/26 ,  C25B1/04 ,  C25B15/08 ,  B01D53/96

CPC classification number: F01N3/2073 ,  F01N3/005 ,  F01N3/103 ,  B01D53/944 ,  B01D53/9431 ,  B01D53/9495 ,  B01D53/9477 ,  B01D46/0027 ,  B01D53/265 ,  C25B1/04 ,  C25B15/081 ,  C25B15/085 ,  B01D53/96 ,  F01N2610/04 ,  F01N2610/1406 ,  F01N2610/1453 ,  B01D2279/30 ,  B01D2255/904

Abstract: An exhaust treatment system includes an exhaust line, a series of emission treatment units, and an electronic control unit. The series of emission treatment units includes a catalytic unit, a particulate filter unit, an oxidation catalytic unit, a hydrogen injection unit, and a Lean NOx Trap (LNT) for trapping select emissions. A method of operating an exhaust treatment system includes introducing a fuel to a combustion engine of a motor vehicle, directing emissions from the combustion engine to an exhaust line, and passing the emissions in the exhaust line through a series of emission treatment units on the exhaust line. The method further includes injecting hydrogen into the exhaust line via a hydrogen injection unit, where an amount of hydrogen gas injected from a hydrogen inlet line reduces the trapped emissions in the LNT to an inert gas.

公开(公告)号：US11725560B2

公开(公告)日：2023-08-15

申请号：US17002511

申请日：2020-08-25

Applicant: PACCAR Inc

Inventor： Cynthia Chaffin Webb ,  Charles Wayne Reinhardt Swart ,  Maarten Meijer ,  Varun Ramesh ,  John Lahti

IPC: F01N3/00 ,  F01N3/20 ,  F01N3/035 ,  F01N3/28

CPC classification number: F01N3/2066 ,  F01N3/035 ,  F01N3/2892 ,  F01N2240/20 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/146

Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.

公开(公告)号：US11703419B2

公开(公告)日：2023-07-18

申请号：US16346878

申请日：2017-11-03

Applicant: AVL EMISSION TEST SYSTEMS GMBH

Inventor： Dirk Woiki ,  Torsten Bornemann

IPC: G01M15/10 ,  F01N3/00 ,  F01N11/00 ,  F16T1/20 ,  F16T1/45

CPC classification number: G01M15/102 ,  F01N3/005 ,  F01N11/00 ,  F16T1/20 ,  F16T1/45 ,  F01N2240/22 ,  F01N2560/02 ,  F01N2560/12

Abstract: A condensate discharge system for an exhaust gas measuring device. The condensate discharge system includes a condensate separator in which a positive pressure prevails, an outflow line in which atmospheric pressure prevails, a connecting line, and an intermediate reservoir in which the positive pressure prevails. The intermediate reservoir is arranged between the condensate separator and the outflow line and is directly connected to the condensate separator via the connecting line. The intermediate reservoir includes a float valve via which a condensate is dischargeable into the outflow line.

公开(公告)号：US11698009B2

公开(公告)日：2023-07-11

申请号：US16937968

申请日：2020-07-24

Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： Michael Kaack ,  Stefan Paukner ,  Falk-Christian Baron Von Ceumern-Lindenstjerna

IPC: F01N3/00 ,  F01N3/035 ,  F01N3/025 ,  F01N3/10 ,  F01N3/20 ,  F01N3/36

CPC classification number: F01N3/035 ,  F01N3/0253 ,  F01N3/101 ,  F01N3/2033 ,  F01N3/36 ,  F01N2250/02 ,  F01N2340/02 ,  F01N2390/02 ,  F01N2610/03

Abstract: An exhaust gas aftertreatment system for an internal combustion engine has an exhaust system that can be connected to an outlet of the internal combustion engine. A three-way catalytic converter that is situated close to the engine and, downstream from the three-way catalytic converter that is situated close to the engine, a second catalytic converter and a particle reduction device are arranged in the direction in which an exhaust gas of the internal combustion engine flows through an exhaust gas channel of the exhaust system. A fuel injector is arranged on the exhaust gas channel so as to inject fuel downstream from the three-way catalytic converter that is situated close to the engine and upstream from the second catalytic converter, and the exhaust system comprises a secondary air system with which secondary air can be blown into the exhaust gas channel downstream from the three-way catalytic converter that is situated close to the engine and upstream from the second catalytic converter.

公开(公告)号：US11649754B2

公开(公告)日：2023-05-16

申请号：US17809853

申请日：2022-06-29

Applicant: MARELLI EUROPE S.P.A.

Inventor： Matteo De Cesare ,  Enrico Brugnoni ,  Marco Panciroli ,  Federico Stola

IPC: F01N3/00 ,  F01N3/20 ,  F01N3/36 ,  F01N3/32

CPC classification number: F01N3/2033 ,  F01N3/32 ,  F01N3/36 ,  F01N2240/14 ,  F01N2610/03 ,  F01N2900/0408 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/12 ,  F01N2900/1402

Abstract: A method to control a burner for an exhaust system of an internal combustion engine with an exhaust gas after-treatment system including at least one catalytic converter. The method provides the steps of calculating the thermal power needed to reach the nominal operating temperature of the at least one catalytic converter and determining an actual number of revolutions with which to operate a fresh air pumping device based on the sum of a nominal number of revolutions, a closed-loop contribution of the number of revolutions with which to operate the fresh air pumping device, and a further contribution of the number of revolutions with which to operate the fresh air pumping device in order to ensure optimal thermal power exiting the burner.

公开(公告)号：US11555434B1

公开(公告)日：2023-01-17

申请号：US17499549

申请日：2021-10-12

Applicant: SAUDI ARABIAN OIL COMPANY

Inventor： Fethi Khaled ,  Christos Kalamaras

IPC: F01N3/00 ,  F01N3/26 ,  F28F3/02 ,  F01N3/20 ,  F01N3/02 ,  B01D17/00 ,  B01D53/22

Abstract: A thermal diffusion unit is fluidly connected to a combustion engine via a flue line. The thermal diffusion unit has a plurality of plates assembled in a parallel configuration, including a pair of heating plates having a heating fluid gap extending therebetween and a pair of cooling plates having a cooling fluid gap extending therebetween. A diffusion sheet is positioned between the pair of heating plates and the pair of cooling plates, such that the diffusion sheet interfaces on a first side with one of the heating plates and interfaces on an opposite side with one of the cooling plates. The diffusion sheet includes a plurality of interconnected thermal diffusion cells arranged in a repeating pattern, at least one heated passage fluidly connecting adjacent thermal diffusion cells, and at least one cooled passage fluidly connecting adjacent thermal diffusion cells.