公开(公告)号：US09739190B2

公开(公告)日：2017-08-22

申请号：US14939570

申请日：2015-11-12

申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC

发明人： Shifang Li ,  Min Sun ,  Kevin Andrew Gady ,  Raffaello Ardanese ,  Giuseppe Mazzara Bologna

IPC分类号： F01N3/20 ,  F02B9/02 ,  F02B5/00

CPC分类号： F01N3/208 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2610/146 ,  F01N2900/0412 ,  F01N2900/0601 ,  F01N2900/1402 ,  F01N2900/1616 ,  F01N2900/1621 ,  F01N2900/1622 ,  F02B5/00 ,  F02B9/02 ,  Y02T10/24

摘要： An exhaust system for a lean-burn internal combustion engine is described, and includes an injection system for injecting reductant into an exhaust gas feedstream upstream of a selective catalytic reduction device (SCR). A control method for controlling the injection system includes determining an upstream NOx gas concentration upstream of the SCR device, determining a measured downstream NOx gas concentration based upon a signal output from a sensor configured to monitor NOx gas concentration downstream of the SCR device, and determining an estimated downstream NOx gas concentration based upon an executable model. A first correlation between the upstream NOx gas concentration and the measured downstream NOx gas concentration is determined, and a second correlation between the upstream NOx gas concentration and the estimated downstream NOx gas concentration is determined. The reductant injection is controlled based upon the first and second correlations.

公开(公告)号：US20170234194A1

公开(公告)日：2017-08-17

申请号：US15045364

申请日：2016-02-17

申请人： Caterpillar Inc.

发明人： Andrew M. Denis

IPC分类号： F01N5/02 ,  F01N3/20

CPC分类号： F01N5/025 ,  F01N3/021 ,  F01N3/103 ,  F01N3/2066 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/11 ,  F01N2610/1453 ,  Y02T10/16 ,  Y02T10/24

摘要： An injector mounting assembly for supporting an injector is described. The injector mounting assembly includes an upstream wall and a downstream wall coupled to the upstream wall. The injector mounting assembly further includes a thermoelectric cooler coupled to at least one of the upstream wall and the downstream wall. The thermoelectric cooler is disposed in thermal contact with the injector and configured to exchange heat with the injector.

公开(公告)号：US20170226908A1

公开(公告)日：2017-08-10

申请号：US15502070

申请日：2015-08-04

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Arifumi MATSUMOTO ,  Toru KIDOKORO ,  Taiga HAGIMOTO ,  Kenji FURUI ,  Akifumi UOZUMI

IPC分类号： F01N3/20

CPC分类号： F01N3/208 ,  F01N9/00 ,  F01N11/00 ,  F01N2550/03 ,  F01N2560/026 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2900/0601 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/47

摘要： An additive amount of a reducing agent to a selective reduction-type NOx catalyst is optimized. An ammonia adsorption amount of the selective reduction-type NOx catalyst is estimated based on one or a plurality of prescribed parameters related to the ammonia adsorption amount and a specific ammonia adsorption amount that is an estimated value of the ammonia adsorption amount specified by at least one of a maximum value and a minimum value of an estimated value of the ammonia adsorption amount is estimated based on an error in the prescribed parameter, and when the specific ammonia adsorption amount is outside a target range of the ammonia adsorption amount, addition of an ammonia precursor or ammonia using an adding valve is controlled such that the specific ammonia adsorption amount returns to the target range.

公开(公告)号：US09702310B2

公开(公告)日：2017-07-11

申请号：US14954866

申请日：2015-11-30

申请人： HYUNDAI MOTOR COMPANY

发明人： Young Jic Kim ,  Jungwhun Kang ,  Won Jin Jo

IPC分类号： F01N3/20 ,  F02D41/02 ,  F01N3/08 ,  F01N13/00

CPC分类号： F02D41/0275 ,  F01N3/021 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/206 ,  F01N3/2066 ,  F01N13/009 ,  F01N2260/04 ,  F01N2430/06 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2900/08 ,  F01N2900/1404 ,  F01N2900/1406 ,  F01N2900/1614 ,  F01N2900/1622 ,  F02D41/0235 ,  F02D41/1446 ,  F02D2200/08 ,  F02D2200/0806 ,  Y02A50/2344 ,  Y02T10/24

摘要： A method for regenerating a lean NOx trap (LNT) of an exhaust purification system having the LNT and a selective catalytic reduction (SCR) catalyst includes determining whether a regeneration release condition of the LNT is satisfied; determining whether a regeneration demand condition of the LNT is satisfied; and performing regeneration of the LNT if the regeneration release condition of the LNT and the regeneration demand condition of the LNT are satisfied, wherein satisfaction of the regeneration release condition of the LNT is determined based on an NOx amount absorbed in the LNT, an NH3 amount stored in the SCR catalyst and temperature at an upstream of the SCR catalyst.

公开(公告)号：US09702286B2

公开(公告)日：2017-07-11

申请号：US14924066

申请日：2015-10-27

申请人： MAZDA MOTOR CORPORATION

发明人： Masahiro Nagoshi ,  Masayuki Tetsuno ,  Yoshio Mizuta ,  Kohei Fujii ,  Hiroshi Yamada ,  Koichiro Harada ,  Yoshiyuki Sato ,  Akihide Takami

IPC分类号： B01D53/92 ,  B01D53/94 ,  F01N3/035 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N13/00

CPC分类号： F01N3/0821 ,  B01D53/9409 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/2042 ,  B01D2255/2065 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/9022 ,  B01D2255/9032 ,  B01D2255/908 ,  B01D2255/912 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/0097 ,  F01N2510/0684 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

摘要： Provided is a system where a composite catalyst into which an LNT catalyst and an oxidation catalyst are combined, a catalyzed particulate filter, an injector configured to inject a urea water solution into an exhaust gas passage, and an SCR catalyst are arranged in this order in an upstream-to-downstream direction of the flow of the exhaust gas.

公开(公告)号：US09593614B2

公开(公告)日：2017-03-14

申请号：US14395540

申请日：2013-05-02

申请人： ISUZU MOTORS LIMITED

发明人： Kazuo Osumi

IPC分类号： F01N3/00 ,  F01N3/20 ,  F01N3/035 ,  F01N3/10 ,  F01N9/00 ,  F02B37/00 ,  F01N3/025 ,  F02D41/02 ,  F02D41/40 ,  F01N13/00 ,  F02D41/14 ,  B01D53/94 ,  F01N3/021 ,  F01N11/00 ,  B01D53/90 ,  F01N13/10

CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/2061 ,  B01D2255/2065 ,  B01D2255/207 ,  B01D2255/20707 ,  B01D2255/20715 ,  B01D2255/20792 ,  B01D2255/40 ,  B01D2255/407 ,  B01D2255/50 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2257/406 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2258/012 ,  F01N3/021 ,  F01N3/0253 ,  F01N3/035 ,  F01N3/106 ,  F01N9/002 ,  F01N11/00 ,  F01N13/009 ,  F01N13/011 ,  F01N13/10 ,  F01N2250/02 ,  F01N2340/06 ,  F01N2430/085 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1406 ,  F02B37/00 ,  F02D41/025 ,  F02D41/0275 ,  F02D41/029 ,  F02D41/1439 ,  F02D41/1446 ,  F02D41/1448 ,  F02D41/146 ,  F02D41/401 ,  F02D41/405 ,  F02D2200/0812 ,  F02M26/15 ,  Y02T10/144 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

摘要： An exhaust gas purification system includes a previous-stage oxidation catalyst device, an ammonia-based solution feeder, a Diesel Particulate Filter (DPF) device, a turbine of a turbocharger, and a NOx selective reduction catalyst device in the exhaust system of an internal combustion engine in this order from an exhaust port side. The NH3 production rate is improved, thereby improving the NOx removal rate; the temperature of the DPF device is kept high to increase the time and frequency of continuous regeneration, thus decreasing the frequency of forced regeneration of the DPF device and the amount of discharge of CO2 produced during the forced regeneration; and also corrosion of the turbine of the turbocharger by SOx is suppressed.

摘要翻译： 排气净化系统包括前级氧化催化剂装置，氨基溶液进料器，柴油颗粒过滤器（DPF）装置，涡轮增压器的涡轮机和内部排气系统中的NOx选择还原催化剂装置 内燃机从排气口侧依次排列。 NH3生产率提高，从而提高NOx的去除率; DPF装置的温度保持较高以增加连续再生的时间和频率，从而降低DPF装置的强制再生频率和强制再生期间产生的CO 2的排出量; 并且抑制了通过SOx对涡轮增压器的涡轮机的腐蚀。

公开(公告)号：US09593611B2

公开(公告)日：2017-03-14

申请号：US14440163

申请日：2013-10-28

申请人： Bungo Kawaguchi ,  Takeru Shirasawa ,  Tomihisa Oda

发明人： Bungo Kawaguchi ,  Takeru Shirasawa ,  Tomihisa Oda

IPC分类号： B01D50/00 ,  F01N3/10 ,  B01D53/94 ,  F01N3/02 ,  F01N3/20 ,  F01N3/08 ,  F01N9/00 ,  F01N3/035

CPC分类号： F01N3/106 ,  B01D53/9409 ,  B01D53/9431 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2251/2067 ,  F01N3/0205 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/103 ,  F01N3/2006 ,  F01N3/206 ,  F01N3/208 ,  F01N9/005 ,  F01N2240/16 ,  F01N2430/06 ,  F01N2550/22 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1602 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

摘要： It is possible to decrease the amount of NOx emitted into the air. The amount of ammonia adsorbed on an SCR catalyst is calculated by subtracting the amount of ammonium nitrate produced on the SCR catalyst from the amount of ammonia adsorbed on the SCR catalyst at the time of starting of an internal combustion engine, and the amount of NO2 flowing into the SCR catalyst is decreased when an NOx purification rate estimated from the amount of ammonia adsorbed on the SCR catalyst is less than a threshold value compared to when the NOx purification rate is equal to or greater than the threshold value.

摘要翻译： 可以减少排放到空气中的NOx的量。 通过从内燃机起动时的SCR催化剂上吸附的氨的量减去在SCR催化剂上产生的硝酸铵的量，计算吸附在SCR催化剂上的氨量，并且NO 2流动量 当从NOx净化率等于或大于阈值时，从SCR吸附在SCR催化剂上的氨的量估计的NOx净化率小于阈值时，SCR催化剂的量降低。

公开(公告)号：US20160376968A1

公开(公告)日：2016-12-29

申请号：US14753499

申请日：2015-06-29

申请人： Caterpillar Inc.

发明人： Dongming Tan ,  Brian M. Cole ,  Shawn R. Herold ,  Kevin L. Dea ,  Theron Cassidy ,  Matthew F. Fahrenkrug ,  Douglas A. Long ,  James J. Driscoll

IPC分类号： F01N3/20 ,  F01N3/021 ,  F01N3/08

CPC分类号： F01N3/2066 ,  F01N3/021 ,  F01N3/0842 ,  F01N3/103 ,  F01N3/106 ,  F01N2530/22 ,  F01N2560/021 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/14 ,  Y02T10/24

摘要： A header unit for a reductant tank is provided. The header unit includes a reductant draw conduit extending into an interior space of the reductant tank. The reductant draw conduit is configured to draw a reductant from the reductant tank. The reductant draw conduit includes at least one expansion opening provided along a length thereof. The header unit also includes a valve element coupled to the reductant draw conduit. The valve element includes a main body member defining a channel therethrough. The main body member circumferentially surrounds at least a portion of the reductant draw conduit corresponding to the at least one expansion opening. The main body member is made of an elastomeric material configured to accommodate an expansion thereof.

摘要翻译： 提供了一种用于还原罐的头部单元。 头部单元包括延伸到还原剂罐的内部空间中的还原剂牵引导管。 还原剂牵引导管构造成从还原槽中吸收还原剂。 还原剂牵引导管包括沿其长度设置的至少一个膨胀开口。 集管单元还包括联接到还原剂牵引导管的阀元件。 阀元件包括限定穿过其中的通道的主体构件。 主体构件周向地包围对应于至少一个膨胀开口的还原剂牵引导管的至少一部分。 主体构件由构造成适应其膨胀的弹性体材料制成。

公开(公告)号：US09527031B2

公开(公告)日：2016-12-27

申请号：US14267559

申请日：2014-05-01

申请人： Johnson Matthey Public Limited Company

发明人： Guy Richard Chandler ,  Neil Robert Collins ,  Paul Richard Phillips ,  Daniel Swallow

IPC分类号： B01D53/94 ,  F01N3/022 ,  F01N3/023 ,  F01N3/035 ,  F01N3/08 ,  F01N3/10 ,  F01N3/20 ,  F01N3/28

CPC分类号： B01D53/94 ,  B01D2255/1021 ,  B01D2255/106 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/2063 ,  B01D2255/207 ,  B01D2255/20723 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/2092 ,  B01D2255/50 ,  F01N3/0222 ,  F01N3/0231 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/10 ,  F01N3/2073 ,  F01N3/28 ,  F01N2240/18 ,  F01N2240/25 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2510/0682 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2570/18 ,  Y02A50/2344 ,  Y02T10/24

摘要： An exhaust system (10) for a lean-burn internal combustion engine (12) comprises a first substrate monolith (16) comprising a catalyst for oxidizing nitric oxide (NO) comprising a catalytic oxidation component followed downstream by a second substrate monolith (18) which is a wall-flow filter having inlet channels and outlet channels, wherein the inlet channels comprise a NOx absorber catalyst (20) and the outlet channels comprise a catalyst for selective catalytic reduction (22) of nitrogen oxides with nitrogenous reductant.

摘要翻译： 一种用于稀燃内燃机（12）的排气系统（10）包括：第一衬底整料（16），包括用于氧化一氧化氮（NO）的催化剂，所述催化剂包含催化氧化组分，随后由第二衬底整料（18） 其是具有入口通道和出口通道的壁流式过滤器，其中入口通道包括NOx吸收剂催化剂（20），出口通道包含用氮还原剂选择性催化还原（22）氮氧化物的催化剂。

公开(公告)号：US20160370121A1

公开(公告)日：2016-12-22

申请号：US15117909

申请日：2015-02-20

申请人： KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Yukihiro NOGUCHI ,  Hiroyasu KAWAUCHI ,  Kenji MORI ,  Satoshi HARIU ,  Takanori MURASAKI

IPC分类号： F28D20/00 ,  F01N3/10 ,  F01N3/021 ,  F01N3/20 ,  F28D21/00 ,  F28F19/06

CPC分类号： F28D20/003 ,  F01N3/021 ,  F01N3/103 ,  F01N3/2006 ,  F01N3/2066 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F28D21/0003 ,  F28D2020/0078 ,  F28F19/06 ,  Y02E60/142

摘要： A chemical thermal storage device includes a reactor and an adsorber connected to the reactor via a pipe. The reactor has a stack structure body having a plurality of plate-shaped heat generation parts and a plurality of heat exchange parts alternately stacked. The heat generation part has a thermal storage material that generates heat upon chemical reaction with NH3 and desorbs NH3 upon reception of waste heat, and a metal casing that contains the thermal storage material. The heat exchange part is a passage of exhaust gas and is constituted of a metal fin. The metal casings of the heat generation parts and the heat exchange parts are joined to each other by brazing, welding or the like.

摘要翻译： 化学蓄热装置包括反应器和通过管连接到反应器的吸附器。 反应器具有堆叠结构体，其具有交替层叠的多个板状发热体和多个热交换部。 发热部具有在接收到废热时与NH 3化学反应并解吸NH 3时产生热量的蓄热材料，以及含有该蓄热材料的金属壳体。 热交换部是排气通路，由金属翅片构成。 发热部件和热交换部件的金属壳体通过钎焊，焊接等彼此接合。