排気ガス浄化装置
    1.
    发明申请
    排気ガス浄化装置 审中-公开
    排气净化装置

    公开(公告)号:WO2014057865A1

    公开(公告)日:2014-04-17

    申请号:PCT/JP2013/076976

    申请日:2013-10-03

    IPC分类号: F01N3/20 F01N3/08 F01N3/24

    摘要:  エンジン(12)の排気経路(25)中に設ける排気ガス浄化装置(27)において、浄化触媒(62,63)を迂回するバイパス経路(29)の配管距離をできるだけ短くして、イニシャルコストの低減を図れるようにすることを課題としている。本願発明の排気ガス浄化装置(27)は、エンジン(12)からの排気ガスを浄化する浄化触媒(62,63)を少なくとも収容する浄化ケーシング(61)を備える。前記浄化触媒(62,63)を通過せずに前記排気ガスを迂回させるバイパス経路(29)を、前記浄化触媒(62,63)のある浄化経路(28)とは別に、前記浄化ケーシング(61)に一体的に設ける。

    摘要翻译: 本发明的目的是提供一种设置在发动机(12)的排气路径(25)中的废气净化装置(27),其中绕过净化催化剂的旁路路径(29)的管道长度 62,63)尽可能短,以便初始成本降低。 该废气净化装置(27)具有至少容纳净化来自发动机(12)的废气的净化催化剂(62,63)的净化壳体(61)。 与净化路径(28)分开地使净化壳体(61)与排气不通过净化催化剂(62,63)而产生排气的旁路路径(29)一体地设置, 催化剂(62,63)。

    IMPROVED REVERSING FLOW CATALYTIC CONVERTER FOR INTERNAL COMBUSTION ENGINES
    7.
    发明申请
    IMPROVED REVERSING FLOW CATALYTIC CONVERTER FOR INTERNAL COMBUSTION ENGINES 审中-公开
    改进的反向流动催化转换器用于内燃机

    公开(公告)号:WO2006125311A1

    公开(公告)日:2006-11-30

    申请号:PCT/CA2006/000847

    申请日:2006-05-24

    IPC分类号: F01N3/20 B01D53/94 F01N3/28

    摘要: A compact reversing flow catalytic converter with protection from overheating includes a valve unit which directs exhaust gases through a container filled with catalytic material to permit a bypass of catalytic material when a temperature of the material exceeds a predetermined threshold. The container defines a U-shaped gas passage that communicates with two parts at the top of the container. The valve unit is mounted to the top of the container and includes an intake and an exhaust cavity. The valve unit includes a valve disk having two openings therethrough. The valve disk rotates around perpendicular central axis between a first, a second and third positions. When overheating of the catalytic material is predicted, a controller relinquishes control of the valve disk and a center return mechanism rotates the valve disk to a third position, in which each of the openings communicates with both ports so that the exhaust gas flow bypasses catalytic material. The catalytic material is thus protected from damage due to overhearing. The advantage is a compact, reliable, highly efficient catalytic converter that is inexpensive to manufacture, durable, and adapted for extended service life. An alternate version of the compact reversing flow controller is also described wherein the valve unit and container are essentially as described above but the valve disk is a four position disk with the fourth position blocking communication between the valve housing and the container isolating the monolith so that maximum heat is retained during engine shut down. The valve is driven by a stepper motor that moves and holds the valve to its four positions including block, bypass, forward and reverse flow. The alternate version also replaces the oxidizing flow-through monolith with an oxidizing filter trap and adds a fuel injection system under control of the controller so that measured amounts of fuel can be injected into the valve inlet to enhance oxidation.

    摘要翻译: 具有防止过热的紧凑型逆流催化转化器包括阀单元,该阀单元通过填充有催化材料的容器引导废气,以允许当材料的温度超过预定阈值时旁路催化材料。 容器限定了与容器顶部的两个部分连通的U形气体通道。 阀单元安装到容器的顶部并且包括进气口和排气腔。 阀单元包括具有穿过其中的两个开口的阀盘。 阀盘在第一,第二和第三位置之间绕垂直中心轴旋转。 当预测催化剂材料过热时,控制器放弃阀盘的控制,并且中心返回机构将阀盘旋转到第三位置,在该第三位置,每个开口与两个端口连通,使得废气流旁路催化材料 。 因此,催化材料被保护免受由于偷听的损害。 优点是紧凑,可靠,高效率的催化转化器,其制造成本低廉,耐用且适合延长使用寿命。 还描述了紧凑型反向流量控制器的替代版本,其中阀单元和容器基本上如上所述,但是阀盘是四位盘,其中第四位置阻塞阀壳体和容器之间的连通,隔离整料,使得 在发动机停机期间保持最大的热量。 该阀由步进电机驱动,该电动机将阀门移动并保持在其四个位置,包括块,旁路,正向和反向流动。 替代版本还用氧化过滤器捕获器代替了氧化流通的整料,并在控制器的控制下添加了燃料喷射系统,使得可以将测量的燃料量注入阀入口以增强氧化。

    EMISSION CONTROL SYSTEM
    9.
    发明申请
    EMISSION CONTROL SYSTEM 审中-公开
    排放控制系统

    公开(公告)号:WO1998020238A1

    公开(公告)日:1998-05-14

    申请号:PCT/US1997019928

    申请日:1997-11-06

    IPC分类号: F01N03/08

    摘要: A purification system and a method for controlling exhaust gas emissions from internal combustion engines during start-up and restart, as well as during normal engine operation, are disclosed. A method for controlling emissions during low load operation of a diesel engine fueled with a diesel fuel/methane mixture is also provided. Exhaust gases are contacted with a gas permeable solid material (5) containing an adsorbent (11) and a catalyst (10) capable of converting the noxious components into innocuous materials. The flow of the gases through the gas permeable solid material is reversed in a series of continuing cycles to bring or to maintain the catalyst in a temperature range suitable for controlling the noxious components, below which temperature the noxious materials are adsorbed by the adsorbent.

    摘要翻译: 公开了一种净化系统和一种用于在启动和重新起动以及在正常的发动机运行期间控制来自内燃机的废气排放的方法。 还提供了一种在用柴油/甲烷混合物燃料的柴油发动机的低负荷运行期间控制排放的方法。 废气与含有能够将有害成分转化成无害材料的吸附剂(11)和催化剂(10)的透气固体材料(5)接触。 气体通过透气固体材料的流动在一系列连续循环中相反,以使催化剂在适于控制有害成分的温度范围内维持,低于该温度下有害材料被吸附剂吸附。

    EXHAUST TREATMENT PACKAGING APPARATUS, SYSTEM, AND METHOD
    10.
    发明申请
    EXHAUST TREATMENT PACKAGING APPARATUS, SYSTEM, AND METHOD 审中-公开
    排气处理包装设备,系统和方法

    公开(公告)号:WO2008036606A2

    公开(公告)日:2008-03-27

    申请号:PCT/US2007/078657

    申请日:2007-09-17

    IPC分类号: F01N3/00 F01N3/10

    摘要: An exhaust treatment packaging apparatus, system, and method includes an elongate exhaust gas passage (502) comprising an inlet (502a) for the entrance of flowing exhaust gases and an outlet (502b) for the exit of the gases. A catalytic device (514) comprising an inlet (504a) and an outlet (504b) completely or partially overlaps the passage (502) to reduce the length required for the system. The passage outlet (502b) is disposed adjacent the catalytic device inlet (504a), and a flow connector (524) connects the passage outlet (502b) to the catalytic device inlet (504a). A particulate filter (716) or other treatment device may be substituted for or added to the catalytic device (514). A doser (510) disposed upstream of the passage (502) doses an additive which evaporates, mixes, or otherwise undergoes change in the passage (502) before reaching the catalytic device (514).

    摘要翻译: 排气处理包装装置,系统和方法包括细长的废气通道(502),其包括用于流入废气的入口(502a)和用于排出气体的出口(502b)。 催化装置(514)包括与通道(502)完全或部分重叠的入口(504a)和出口(504b),以减小系统所需的长度。 通道出口(502b)设置在催化装置入口(504a)附近,并且流动连接器(524)将通道出口(502b)连接到催化装置入口(504a)。 微粒过滤器(716)或其他处理装置可以替代或添加到催化装置(514)中。 设置在通道(502)上游的配量器(510)在到达催化装置(514)之前,对在通道(502)中蒸发,混合或以其它方式经历变化的添加剂进行剂量。