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公开(公告)号:WO2021081067A1
公开(公告)日:2021-04-29
申请号:PCT/US2020/056622
申请日:2020-10-21
Applicant: SAUDI ARABIAN OIL COMPANY , ARAMCO AMERICAS
Inventor: KALAMARAS, Christos M. , JAVED, Tamour , HAMAD, Esam Z. , MAHFOUZ, Remi
Abstract: Systems and methods for treating automotive vehicle emissions on board an automotive vehicle include the use of waste heat recovery, electrochemical water splitting, phototcatalytic water splitting, and selective catalytic reduction. Waste heat recovery is used to power electrochemical water splitting, or photocatalytic water splitting. Photons collected from a solar panel are used in photocatalytic water splitting, or in photo-assisted selective catalytic reduction. Hydrogen gas generated by water splitting is used in conjunction with catalytic reduction units to catalytically reduce NOx in an engine exhaust gas.
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公开(公告)号:WO2021074205A1
公开(公告)日:2021-04-22
申请号:PCT/EP2020/078864
申请日:2020-10-14
Applicant: ROBERT BOSCH GMBH
Inventor: KLOOS, Manuel , FUCHS, Timo , RUSS, Sebastian
IPC: F16L41/00 , F01N13/00 , G01N27/407
Abstract: Gewindestutzen zum Einschweißen in die Abgasleitung (50) einer Brennkraftmaschine und zur Aufnahme eines Abgassensors (20), mit einer Durchgangsbohrung (12), die in axialer Richtung ein dem Abgas zugewandtes Ende (121) und ein dem Abgas abgewandtes Ende (122) aufweist, dadurch gekennzeichnet, dass in der Durchgangsbohrung (12) eine umlaufende, radial einwärts weisende Nase (14) zur Anlage des Abgassensors (20) vorgesehen ist, die von dem dem Abgas zugewandten Ende (121) beabstandet ist und von dem dem Abgas abgewandten Ende (122) beabstandet ist.
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23.
公开(公告)号:WO2021069204A1
公开(公告)日:2021-04-15
申请号:PCT/EP2020/076366
申请日:2020-09-22
Applicant: RENAULT S.A.S , NISSAN MOTOR CO., LTD.
Inventor: ALONSO-RODRIGUEZ, Manuel , CARCEL-CUBAS, Juan-Antonio , GERAULT, Alain , OTTONELLI, Claudio , PALACIOS-ARMAS, Alfonso
Abstract: L'invention propose un procédé de diagnostic d'un système de post-traitement d'un moteur à allumage commandé de véhicule automobile, comprenant un catalyseur trois voies associée à une sonde à oxygène amont proportionnelle et à une sonde aval binaire. Pour diagnostiquer le catalyseur, on calcule sa capacité de stockage en oxygène (OSC). Selon l'invention, ce calcul est réalisé pendant les phases de lever de pied de la pédale d'accélérateur du véhicule, au début desquelles on constate que le catalyseur est chargé à moins de 10% de sa capacité de stockage en oxygène. A cet instant on coupe l'injection de carburant et on ouvre le boîtier-papillon du moteur. La capacité de stockage en oxygène(OSC) est calculée jusqu'à ce que la sonde aval bascule en mélange pauvre. Préalablement, au diagnostic du catalyseur on diagnostique que les sondes amont et aval sont en bon état, pour éviter des fausses détections.
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公开(公告)号:WO2020260331A1
公开(公告)日:2020-12-30
申请号:PCT/EP2020/067586
申请日:2020-06-24
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor: STOCK, Holger , LANGENFELD, Philipp , HIRTH, Peter , ACHLEITNER, Erwin , HAFT, Gerhard , KLEINER, Florian , RODATZ, Paul
Abstract: Die Erfindung betrifft eine Vorrichtung zu Nachbehandlung von Abgasen einer Abgasquelle, mit einer räumlich begrenzten Strömungsstrecke, welche ausgehend von der Abgasquelle durchströmbar ist, mit einem in der Strömungsstrecke angeordneten Heizkatalysator (1), welcher in Strömungsrichtung (8) betrachtet zuerst einen katalytisch aktiven und durchströmbaren Katalysator (2) aufweist und darauf in Strömungsrichtung (8) folgend eine elektrisch beheizbare Heizscheibe (3) aufweist, wobei im Bereich des Heizkatalysators (1) zumindest ein Auslass einer Sekundärluftzuführung (5, 11) derart angeordnet ist, dass ein als Sekundärluft bezeichneter Gasstrom im Bereich des Heizkatalysators (1) in die Strömungsstrecke zuführbar ist.
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公开(公告)号:WO2020241931A1
公开(公告)日:2020-12-03
申请号:PCT/KR2019/006526
申请日:2019-05-30
Applicant: 홍금표
Inventor: 홍금표
Abstract: 본 발명은 차량 내연기관용 매연저감장치에 관한 것으로, 더욱 상세하게는 차량의 배기라인 종단에 부가장착된 상태로 배기가스의 배출 흐름을 원활하게 함으로써 매연의 발생을 줄이고 출력향상 및 연비개선을 도모할 수 있도록 한 차량 내연기관용 매연저감장치에 관한 것으로서, 차량의 배기구 종단에 장착되어 배기가스의 배출흐름을 원활하게 하기 위한 차량의 내연기관용 매연저감장치에 있어서, 상기 매연저감장치는, 하우징관과 하우징관 내부에 장착되어 배기가스가 나선형으로 회전하며 배출될 수 있도록 하기 위한 와류관으로 구성되고, 상기 하우징관은, 차량의 배기구 종단에 장착되어 배기가스가 내부로 유입되는 일정직경의 유입구를 가진 전방몸체와, 상기 유입구와 와류관을 통과한 배기가스의 회전력을 중가시키기 위해 직경이 점차적으로 감소되는 후방몸체로 구성되고, 상기 와류관은, 상기 하우징관의 전방몸체 내측 소정위치에 선단부가 용접고정되고, 상기 선단부에서 후단부로 갈수록 직경이 좁아지는 형태를 이루며, 후단부에서 선단부측으로 일정길이 절개된 다수의 베인을 형성하고, 상기 베인의 절개부위를 기준으로 상기 선단부에서 후단부로 갈수록 내외측으로 일정각도 절곡되어, 상기 베인에 부딪히는 배기가스가 회전하면서 속도가 증가되는 것을 특징으로 하는 차랑의 내연기관용 매연저감장치를 제공한다.
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公开(公告)号:WO2020238328A1
公开(公告)日:2020-12-03
申请号:PCT/CN2020/079190
申请日:2020-03-13
Applicant: 刘福贵
Abstract: 一种瓦楞筒消声换热结构包括瓦楞筒(1)、金属筒I(2)、第一工质入口(3)和第一工质出口(4)。瓦楞筒是由折叠成瓦楞状的金属带弯曲围成的筒状体,金属筒I置于瓦楞筒的筒腔内,其外壁紧靠瓦楞筒内壁的内齿峰,使内侧的瓦楞槽形成一个个单独的两端开口的内瓦楞槽通道,瓦楞筒于前、后端分别封闭,通过隔板将瓦楞筒内的空间分割为前室和后室,第一工质入口和第一工质出口分别与前室和后室连通,使第一工质入口、前室、内瓦楞槽通道、后室及第一工质出口构成依次连通的第一工质的消声换热通路。该消声换热结构提高了高温噪声气流的热交换强度,使其快速降温并消除气流噪声。还提供了应用该消声换热结构的热声设备。
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公开(公告)号:WO2020236158A1
公开(公告)日:2020-11-26
申请号:PCT/US2019/033354
申请日:2019-05-21
Applicant: CUMMINS EMISSION SOLUTIONS INC.
Inventor: RINGSTAD, John , CHRISTIANSON, Peter
Abstract: A sampling assembly for an exhaust gas aftertreatment system includes a body layer, an outer bowl, a first sampler, and an inner bowl. The body layer defines a cylindrical passage. The outer bowl is coupled to the body layer. The first sampler extends circumferentially along the body layer to the outer bowl. The first sampler includes a first sampler channel and a first sampler aperture. The first sampler channel is configured to provide exhaust gas into the outer bowl. The first sampler aperture is configured to receive the exhaust gas from the cylindrical passage and provide the exhaust gas into the first sampler channel. The inner bowl is disposed at least partially within the outer bowl and configured to receive the exhaust gas from the outer bowl and provide the exhaust gas into the cylindrical passage.
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28.
公开(公告)号:WO2020201648A1
公开(公告)日:2020-10-08
申请号:PCT/FR2020/050478
申请日:2020-03-09
Applicant: PSA AUTOMOBILES SA
Inventor: FURIO VIZCAINO, Javier , DILLENSCHNEIDER, Julie , BENRYAN, Yassine
Abstract: L'invention porte sur un procédé de diagnostic de présence de gel dans un piquage d'un capteur de pression différentielle, dit capteur de contrepression, comportant: - une étape de définition d'un intervalle de temps (I), - une étape de calcul d'une valeur de référence (dPdV_ref) d'un gradient d'une contrepression du filtre à particules retournée par le capteur de contrepression en fonction d'un débit volumique des gaz d'échappement en amont du filtre à particules, et - une étape d'analyse d'une évolution, sur l'intervalle de temps (I), d'une valeur instantanée (dPdVJnst) du gradient de la contrepression du filtre à particules retournée par le capteur de contrepression en fonction du débit volumique des gaz d'échappement en amont du filtre à particules par rapport à la valeur de référence (dPdV_ref) précédemment calculée pour en déduire la présence ou non de gel dans un piquage du capteur de contrepression.
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公开(公告)号:WO2020190447A1
公开(公告)日:2020-09-24
申请号:PCT/US2020/019190
申请日:2020-02-21
Applicant: CATERPILLAR INC.
Inventor: CHENOWETH, Kurtis , PAN, Jianping , DAOUD, Mohamed , BUI, Y. T. , HUDGENS, Jason , AGUIRRE, Ian
Abstract: An exhaust gas aftertreatment system is disclosed. The system may include an inlet to receive an exhaust gas produced by an engine and a first section to receive the exhaust gas from the inlet. The system may include a mixing tube to receive the exhaust gas from the first section and a reductant injector to inject a reductant into the mixing tube. The system may include a second section to receive the exhaust gas from the mixing tube and to facilitate mixing of the reductant and the exhaust gas after the exhaust gas exits the mixing tube and a diffuser to receive the exhaust gas from the second section. The system may include a plurality of catalysts to receive the exhaust gas from the diffuser and at least one outlet to receive the exhaust gas from the plurality of catalysts.
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公开(公告)号:WO2020172489A1
公开(公告)日:2020-08-27
申请号:PCT/US2020/019148
申请日:2020-02-21
Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY , CHEN, Hai-Ying
Inventor: CHEN, Hai-Ying , TYO, Eric
Abstract: A close-coupled catalytic article, and its use in an exhaust system for internal combustion engines, is disclosed. The close-coupled catalytic article for the treatment of an exhaust gas comprising: an upstream substrate and a downstream substrate, wherein the upstream substrate is spaced apart from the downstream substrate, wherein the upstream substrate comprises a first three-way catalyst (TWC) composition and the downstream substrate comprises a second TWC composition, the first and second TWC compositions each comprising an oxygen storage component (OSC), wherein a loading of the OSC in the downstream substrate is greater than a loading of the OSC in the upstream substrate and is at least 2.2g/in 3 .
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