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1. 发明授权

US5746052A Exhaust gas purification device for an engine 失效
标题翻译：发动机废气净化装置
公开(公告)号：US5746052A
公开(公告)日：1998-05-05
申请号：US525892
申请日：1995-09-08
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Takehisa Yaegashi , Toshifumi Takaoka
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Takehisa Yaegashi , Toshifumi Takaoka
IPC分类号： B01D53/94 , F01N3/20 , F01N3/22 , F01N3/24 , F01N13/02 , F01N13/04 , F02D41/04
CPC分类号： B01D53/9454 , B01D53/9431 , B01D53/9477 , B01D53/9495 , F01N13/009 , F01N13/011 , F01N3/20 , F01N3/206 , F01N2240/25 , F01N2570/14 , F01N2610/02 , Y02T10/22
摘要： In the present invention, the exhaust gas from the engine is divided into a first and a second branch exhaust passages after it passes through a three-way reducing and oxidizing catalyst, and the two branch exhaust passages merge into an exhaust gas outlet passage. In the first branch exhaust passage, an oxidizing catalyst is disposed, and in the exhaust gas outlet passage, a denitrating and oxidizing catalyst is disposed. NO.sub.x in the exhaust gas from the engine is all converted to N.sub.2 and NH.sub.3 by the three-way reducing and oxidizing catalyst and a part of the NH.sub.3 generated by the three-way catalyst flows into the first branch exhaust passage and is converted to NO.sub.x again by the oxidizing catalyst. The amount of NO.sub.x produced by the oxidizing catalyst and the amount of NO.sub.x flowing through the second branch exhaust passage is determined by the flow distribution ratio of the first and the second branch exhaust passages. In this invention, the flow ratio is determined in such a manner that the amount of the NO.sub.x produced by the oxidizing catalyst and the amount of the NH.sub.3 passing through the second branch exhaust passage are stoichiometric to produce N.sub.2 and H.sub.2 O. Therefore, when these exhaust gases flow into the denitrating and oxidizing catalyst after they mix with each other in the exhaust gas outlet passage, all the NO.sub.x and the NH.sub.3 are converted to N.sub.2 and H.sub.2 O by the denitrating and oxidizing catalyst without producing any surplus NO.sub.x or NH.sub.3.
摘要翻译：在本发明中，来自发动机的废气在通过三通还原氧化催化剂后被分成第一和第二分支排气通道，两个分支排气通道合流到废气出口通道中。在第一分支排气通道中设置氧化催化剂，并且在排气出口通道中设置脱硝和氧化催化剂。来自发动机的废气中的NOx通过三元还原氧化催化剂全部转化为N 2和NH 3，并且由三元催化剂产生的一部分NH 3流入第一分支排气通道并再次转化为NOx 通过氧化催化剂。由氧化催化剂产生的NOx的量和流过第二分支排气通道的NOx的量由第一和第二分支排气通道的流量分配比确定。在本发明中，流量比以如下方式确定：氧化催化剂产生的NOx的量和通过第二分支排气通道的NH 3的量是化学计量的，以产生N 2和H 2 O. 因此，当这些废气在废气出口通道中彼此混合后流入脱硝和氧化催化剂时，所有的NOx和NH 3都被脱硝和氧化催化剂转化为N 2和H 2 O，而不产生任何剩余的NOx或 NH3。

2. 发明授权

US5740669A Exhaust gas purification device for an engine 失效
标题翻译：发动机废气净化装置
公开(公告)号：US5740669A
公开(公告)日：1998-04-21
申请号：US559107
申请日：1995-11-16
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Toshifumi Takaoka
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Toshifumi Takaoka
IPC分类号： F02D45/00 , B01D53/56 , B01D53/81 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/18 , F01N3/30 , F01N9/00 , F01N13/02 , F02D41/02 , F02D41/04 , F02D41/14 , F01N3/28
CPC分类号： F01N3/0842 , F01N13/009 , F01N3/0871 , F01N3/30 , F01N9/00 , F02D41/0275 , F01N2240/18 , F01N2390/02 , F01N2430/06 , F02D2200/0802 , Y02C20/10 , Y02T10/47
摘要： In the present invention, a NO.sub.x absorbent is used for removing the NO.sub.x in the exhaust gas. The NO.sub.x absorbent absorbs NO.sub.x in the exhaust gas when the air-fuel ratio of the exhaust gas is lean, and releases the absorbed NO.sub.x and reduces it to nitrogen when the air-fuel ratio of the exhaust gas is rich or stoichiometric. To prevent the NO.sub.x absorbent from being saturated with the absorbed NO.sub.x, the NO.sub.x absorbent must be regenerated periodically by causing the NO.sub.x in the absorbent to be released and reduced. However, it is found that when the regenerating process by supplying a rich air-fuel ratio exhaust gas to the NO.sub.x absorbent is carried out at high NO.sub.x absorbent temperature, a part of NO.sub.x flows out from the NO.sub.x absorbent at the beginning of the regenerating process without being reduced. In the present invention, this outflow of NO.sub.x is suppressed by, for example, carrying out the regenerating process only when the temperature of the NO.sub.x absorbent is lowered to a predetermined temperature. This predetermined temperature is set low enough to ensure that the amount of the outflow of NO.sub.x is minimized.
摘要翻译：在本发明中，使用NOx吸收剂除去废气中的NOx。当排气的空燃比稀薄时，NOx吸收剂吸收废气中的NOx，并且当排气的空燃比浓或化学计量时，释放吸收的NOx并将其还原成氮。为了防止NOx吸收剂被吸收的NOx饱和，NOx吸收剂必须通过使吸收剂中的NOx释放和还原而周期性地再生。然而，发现当在高NOx吸收温度下进行通过向NOx吸收剂供给浓空燃比废气的再生过程时，在再生过程开始时，部分NOx从NOx吸收剂流出没有减少在本发明中，只有当NOx吸收剂的温度下降到规定温度时，例如仅进行再生处理，可以抑制NOx的流出。该预定温度被设定得足够低以确保NOx的流出量最小化。

3. 发明授权

US06409973B1 Exhaust gas purification device for an engine 失效
标题翻译：发动机废气净化装置
公开(公告)号：US06409973B1
公开(公告)日：2002-06-25
申请号：US08523455
申请日：1995-09-05
申请人： Yukio Kinugasa , Toshifumi Takaoka , Kouhei Igarashi , Takaaki Itou
发明人： Yukio Kinugasa , Toshifumi Takaoka , Kouhei Igarashi , Takaaki Itou
IPC分类号： B01D5314
CPC分类号： B01D53/9481 , B01D53/9495 , F01N3/0842 , F01N3/0871 , F01N3/0878 , F01N3/22 , F01N13/011 , F01N2270/00 , F01N2410/12 , F01N2610/03 , F01N2610/04 , F02B1/04
摘要： The exhaust gas purification device according to the present invention utilizes two NOx absorbents in order to remove NOx from the exhaust gas of an engine operated at a lean air-fuel ratio. The NOx absorbents are disposed, in series, in the exhaust passage of the engine and a nozzle for supplying a reducing agent is disposed in the exhaust passage at a position between the two NOx absorbents. Further, the device includes switching valves for changing the direction of the exhaust gas flow in the exhaust gas passage. When the switching valves are set to direct the exhaust gas flow to one direction, the exhaust gas first flows through one of the NOx absorbents (first NOx absorbent), and after passing through the first NOx absorbent, the reducing agent is supplied to the exhaust gas before it flows into the other NOx absorbent (second NOx absorbent). Thus, the first NOx absorbent absorbs NOx in the exhaust gas, and the NOx absorbed by the second NOabsorbent is released from the second NOx absorbent. When the switching valves are switched, the exhaust gas flows in the opposite direction, and flows through the second NOx absorbent and the first NOx absorbent in this order. In this case, the second NOx absorbent absorbs NOx in the exhaust gas, and the NOx absorbed by the first NOx absorbent is released and reduced to N2. Therefore, by reversing the direction of the exhaust gas periodically, the absorbing operation of NOx and releasing/reducing operation of NOx are performed by two NOx absorbents alternately. Thus, it becomes possible to remove NOx in the exhaust gas continuously while the NOx absorbents are prevented from being saturated by the absorbed NOx.
摘要翻译：根据本发明的排气净化装置利用两个NOx吸收剂来从以稀空燃比运转的发动机的废气中除去NOx。 NOx吸收剂串联设置在发动机的排气通道中，并且用于供给还原剂的喷嘴设置在排气通道中的两个NOx吸收剂之间的位置。此外，该装置包括用于改变排气通道中的排气流的方向的切换阀。当切换阀被设定为将废气流引导到一个方向时，废气首先流过NOx吸收剂之一（第一NOx吸收剂），并且在通过第一NOx吸收剂之后，还原剂被供给到排气气体在其流入另一个NOx吸收剂（第二NOx吸收剂）之前。因此，第一NOx吸收剂吸收废气中的NOx，并且由第二NO吸收剂吸收的NOx从第二NOx吸收剂释放。当切换阀切换时，排气沿相反方向流动，并且依次流过第二NOx吸收剂和第一NOx吸收剂。在这种情况下，第二NOx吸收剂吸收废气中的NOx，并且由第一NOx吸收剂吸收的NOx被释放并且还原成N2。因此，通过周期性地反转排气的方向，NOx的吸收运转和NOx的释放/还原运转由两个NOx吸收剂交替进行。因此，可以连续地除去排气中的NOx，同时防止NOx吸收剂被吸收的NOx饱和。

4. 发明授权

US5783160A Method for purifying combustion exhaust gas 失效
标题翻译：燃烧废气净化方法
公开(公告)号：US5783160A
公开(公告)日：1998-07-21
申请号：US590714
申请日：1996-01-24
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Toshifumi Takaoka , Michihiro Ohashi , Koji Yokota
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Toshifumi Takaoka , Michihiro Ohashi , Koji Yokota
IPC分类号： B01D53/94 , F01N3/08 , F01N3/20 , F01N3/22 , F01N13/02 , B01D53/58
CPC分类号： B01D53/9481 , B01D53/9409 , B01D53/9436 , B01D53/9495 , F01N13/009 , F01N3/0842 , F01N3/0871 , F01N3/206 , F01N3/22 , F01N3/222 , F01N2230/04 , F01N2240/25 , F01N2250/12 , F01N2610/02 , Y02T10/22
摘要： The method for purifying combustion exhaust gas according to the present invention utilizes a NH.sub.3 decomposing catalyst. The NH.sub.3 decomposing catalyst in the present invention is capable of converting substantially all of the NH.sub.3 in the combustion exhaust gas to N.sub.2 when the air-fuel ratio of the exhaust gas is lean and the temperature of the catalyst is within a predetermined optimum temperature range. Further, when the exhaust gas contains NO.sub.x in addition to NH.sub.3, the NH.sub.3 decomposing catalyst is capable of reducing the NO.sub.x in the optimum temperature range even though the air-fuel ratio of the exhaust gas is lean. In the present invention, the conditions of the exhaust gas containing NO.sub.x are adjusted before it is fed to the NH.sub.3 decomposing catalyst in such a manner that the temperature of the exhaust gas is within the optimum temperature range and the air-fuel ratio of the exhaust gas is lean. Further, NH.sub.3 is added to the exhaust gas before it is fed to the NH.sub.3 decomposing catalyst. Therefore, a lean air-fuel ratio exhaust gas, at a temperature within the optimum temperature range, which contains both the NO.sub.x and NH.sub.3 is fed to the NH.sub.3 decomposing catalyst, and the NO.sub.x, as well as the NH.sub.3, in the exhaust gas is completely resolved by the NH.sub.3 decomposing catalyst.
摘要翻译：根据本发明的用于净化燃烧废气的方法利用NH 3分解催化剂。本发明中的NH 3分解催化剂能够在排气的空燃比稀薄且催化剂的温度在预定的最佳温度范围内时将燃烧废气中的NH 3基本上全部转化成N2。此外，当排气中含有除NH 3之外的NOx时，NH 3分解催化剂即使在排气的空燃比较稀的情况下也能够将NOx还原到最佳温度范围。在本发明中，在将废气的温度设定在最佳温度范围内并排气的空燃比的方式调节含有NOx的废气的条件，然后送入NH 3分解催化剂气体很瘦此外，在将其输入到NH 3分解催化剂之前，将NH 3加入到废气中。因此，在含有NOx和NH 3的最佳温度范围内的温度下，贫空燃比废气被供给到NH 3分解催化剂中，排气中的NOx以及NH 3是完全由NH3分解催化剂分解。

5. 发明授权

US6047542A Method and device for purifying exhaust gas of engine 失效
标题翻译：发动机排气净化方法及装置
公开(公告)号：US6047542A
公开(公告)日：2000-04-11
申请号：US68422
申请日：1998-06-29
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Kouichi Takeuchi
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Kouichi Takeuchi
IPC分类号： F02D43/00 , B01D53/86 , B01D53/94 , B01J23/40 , B01J23/70 , B01J29/04 , F01N3/08 , F01N3/10 , F01N3/20 , F01N3/24 , F01N3/28 , F01N13/02 , F01N13/04 , F02B1/04 , F02D41/02 , F02D41/04 , F02D41/14 , F01N3/00
CPC分类号： F01N3/2073 , B01D53/8696 , B01D53/9431 , B01D53/9495 , F01N13/009 , F01N13/011 , F01N13/107 , F01N3/0842 , F01N3/0871 , F01N3/20 , F01N3/2053 , F02D41/027 , F02D41/1443 , F02D41/1475 , F01N2240/25 , F01N2250/12 , F01N2610/02 , F02B1/04 , F02D41/0275 , Y02T10/22
摘要： An engine (1) has first and second cylinder groups (1a) and (1b). The first cylinder group (1a) is connected to a three way (TW) catalyst (8a). The second group (1b) and the TW catalyst (8a) are connected, via an interconnecting duct (13) to an NH.sub.3 adsorbing and oxidizing (NH.sub.3 -AO) catalyst (14a). The first group (1a) performs the rich operation, and the second group (1b) performs the lean operation. In the TW catalyst (8a), NO.sub.x exhausted from the first group (1a) is converted to NH.sub.3, and the NH.sub.3 reduces the NO.sub.x exhausted from the second group (1b) in the NH.sub.3 -AO catalyst (14a). A NO.sub.x occluding and reducing (NO.sub.x -OR) catalyst (11a) is arranged in the exhaust passage between the second group (1b) and the interconnecting duct (13), to thereby suppress the NO.sub.x amount flowing into the NH.sub.3 -AO catalyst (14a).
摘要翻译： PCT No.PCT / JP96 / 03332 Sec。 371日期1998年6月29日第 102（e）1998年6月29日PCT PCT 1996年11月13日PCT公布。公开号WO97 / 19262 日期1997年5月29日发动机（1）具有第一和第二气缸组（1a）和（1b）。第一气缸组（1a）连接到三通（TW）催化剂（8a）。第二组（1b）和TW催化剂（8a）通过互连导管（13）连接到NH 3吸附和氧化（NH3-AO）催化剂（14a）。第一组（1a）执行丰富操作，第二组（1b）执行精简操作。在TW催化剂（8a）中，从第一组（1a）排出的NOx转化为NH 3，并且NH 3减少在NH3-AO催化剂（14a）中从第二组（1b）排出的NOx。在第二组（1b）和互连管（13）之间的排气通道中设置有NOx吸留还原（NOx-OR）催化剂（11a），从而抑制流入NH 3 -A AO催化剂（14a）的NOx量）。

6. 发明授权

US6032461A Exhaust emission control apparatus for internal combustion engine 失效
标题翻译：内燃机用废气排放控制装置
公开(公告)号：US6032461A
公开(公告)日：2000-03-07
申请号：US65016
申请日：1998-04-20
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou
IPC分类号： F01N3/023 , F01N3/025 , F01N3/027 , F01N3/08 , F01N3/20 , F01N3/28 , F01N9/00 , F02B3/06 , F02D41/02 , F01N3/00
CPC分类号： F01N9/005 , F01N13/009 , F01N13/0097 , F01N3/023 , F01N3/0231 , F01N3/0256 , F01N3/027 , F01N3/0842 , F01N3/0871 , F01N3/0885 , F01N3/20 , F01N3/2013 , F01N3/2882 , F02D41/027 , F02D41/0275 , F02D41/029 , F01N2240/16 , F01N2260/04 , F02B3/06 , F02D2200/0806 , F02D2200/0812 , F02D2200/701 , Y02T10/26 , Y02T10/47
摘要： To provide an exhaust gas purifying system for an internal combustion engine capable of executing an optimal regenerative operation by predicting a temperature of an absorbent based on running state information.There are predicted the amount of nitrogen oxides (NO.sub.x) to be absorbed by an absorbent 125 incorporated in a catalyst 124 and the temperature of the absorbent, based on the running state information obtained from a car navigation system 141 or traffic information service receiver 142, and the regenerative operation schedule is determined based on the prediction. Thus, the regenerative operation is conducted at the timing where NO.sub.x has been duly absorbed by the absorbent and the absorbent temperature is lower than a predetermined temperature, so that the leakage of NO.sub.x into the exterior of a vehicle can be restrained.
摘要翻译： PCT No.PCT / JP96 / 03184 Sec。 371日期：1998年4月20日 102（e）1998年4月20日PCT 1996年10月30日PCT PCT。公开号WO97 / 16632 日期：1997年5月9日为了提供能够通过基于运行状态信息预测吸收剂的温度来执行最佳再生操作的内燃机的排气净化系统。根据从汽车导航系统141或交通信息服务接收机142得到的行驶状态信息，预测吸收剂125吸收的氮氧化物（NOx）的数量，吸收剂125的吸收温度，并且基于预测确定再生操作调度。因此，在NOx被吸收剂适当地吸收并且吸收剂温度低于预定温度的时刻进行再生操作，从而可以抑制NOx向车辆外部的泄漏。

7. 发明授权

US5924406A Apparatus for controlling auxiliary equipment driven by an internal combustion engine 失效
标题翻译：用于控制由内燃机驱动的辅助设备的装置
公开(公告)号：US5924406A
公开(公告)日：1999-07-20
申请号：US867724
申请日：1997-06-03
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou
IPC分类号： G01C21/00 , B60H1/00 , B60H1/32 , B60K6/04 , B60K6/12 , B60K25/00 , B60K25/02 , B60L15/20 , B60W10/08 , B60W10/30 , B60W20/00 , F02D29/02 , F02D45/00 , G01C21/26 , H02J1/00 , F02B67/00
CPC分类号： B60W20/12 , B60H1/00771 , B60K25/00 , B60K6/48 , B60L11/14 , B60L15/2045 , B60W10/08 , B60W10/30 , B60W30/1886 , B60K25/02 , B60K6/12 , B60L2240/62 , B60L2260/54 , B60W20/00 , B60W2550/402 , Y02T10/6208 , Y02T10/6221 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7283 , Y02T10/7291 , Y02T10/84 , Y02T90/16 , Y02T90/161 , Y02T90/162
摘要： An apparatus for controlling auxiliary equipment driven by an internal combustion engine, which can suppress the deterioration of a specific fuel consumption by controlling the auxiliary equipment based on running environment information provided from a car navigation system or the like. Namely, this apparatus predicts the future maximum output of the internal combustion engine and a running load thereof according to running environment information and vehicle information. Further, if the maximum output is larger than the running load, the auxiliary equipment (for example, a light and an air conditioner) are directly driven by the internal combustion engine. Moreover, surplus energy is stored in an energy storing device. When the maximum output is nearly equal to the running load and that the specific fuel consumption is deteriorated when driving the auxiliary equipments, they are driven by using the energy stored in the energy storing device. Consequently, the deterioration of the fuel consumption ratio due to the operations of the accessories is suppressed.
摘要翻译：一种用于控制由内燃机驱动的辅助设备的装置，其能够基于从汽车导航系统等提供的行驶环境信息控制辅助设备来抑制特定燃料消耗的劣化。即，该装置根据行驶环境信息和车辆信息来预测未来的内燃机的最大输出及其运行载荷。此外，如果最大输出大于运行负载，则辅助设备（例如，光和空调）由内燃机直接驱动。此外，剩余能量存储在能量存储装置中。当最大输出几乎等于运行负载时，并且在驱动辅助设备时比燃料消耗恶化，它们通过使用存储在能量存储装置中的能量来驱动。因此，由于附件的操作引起的燃料消耗率的劣化被抑制。

8. 发明授权

US5782087A Device for purifying exhaust gas of an engine 失效
标题翻译：用于净化发动机废气的装置
公开(公告)号：US5782087A
公开(公告)日：1998-07-21
申请号：US746056
申请日：1996-11-06
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Toshiaki Tanaka
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Toshiaki Tanaka
IPC分类号： F02D45/00 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F01N9/00 , F01N13/02 , F02B1/04 , F02D41/04
CPC分类号： F01N3/0842 , B01D53/9409 , B01D53/9436 , B01D53/9495 , F01N13/009 , F01N3/0871 , F01N3/20 , F01N9/00 , F01N2250/12 , F01N2370/04 , F02B1/04 , Y02T10/22 , Y02T10/47
摘要： An exhaust manifold of an engine is connected to a three way (TW) catalyst, and the TW catalyst is connected to an NH.sub.3 adsorbing and oxidizing (NH.sub.3 -AO) catalyst, such as the Cu-zeolite catalyst. The engine performs the lean and the rich operations alternately and repeatedly. When the engine performs the rich operation, the TW catalyst synthesizes NH.sub.3 from NO.sub.x in the inflowing exhaust gas, and the NH.sub.3 is then adsorbed in the NH.sub.3 -AO catalyst. Next, when the engine performs the lean operation, NO.sub.x passes through the TW catalyst, and the adsorbed NH.sub.3 is desorbed and reduces the inflowing NO.sub.x. When the rich operation is in process, or is to be started, the exhaust gas temperature flowing into the NH.sub.3 -AO catalyst is detected. If the temperature is equal to or higher than the upper threshold representing the rich endurance temperature, the lean or the stoichiometric operation is performed.
摘要翻译：发动机的排气歧管连接到三通（TW）催化剂，TW催化剂连接到NH 3吸附和氧化（NH3-AO）催化剂如Cu-沸石催化剂上。发动机交替重复执行精益和丰富的操作。当发动机进行浓缩操作时，TW催化剂在流入的废气中从NOx合成NH 3，然后NH 3被吸附在NH3-AO催化剂中。接下来，当发动机进行稀薄运转时，NOx通过TW催化剂，吸附的NH 3被解吸并减少流入的NOx。当富运行正在进行或正在启动时，检测流入NH3-AO催化剂的废气温度。如果温度等于或高于表示富耐久温度的上限阈值，则执行稀薄或化学计量操作。

9. 发明授权

US6133185A Exhaust gas purifying catalyst 失效
标题翻译：废气净化催化剂
公开(公告)号：US6133185A
公开(公告)日：2000-10-17
申请号：US744814
申请日：1996-11-06
申请人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Takaaki Kanazawa , Takahiro Hayashi , Koji Yokota , Yasutaka Nagai
发明人： Yukio Kinugasa , Kouhei Igarashi , Takaaki Itou , Naoto Suzuki , Takehisa Yaegashi , Takaaki Kanazawa , Takahiro Hayashi , Koji Yokota , Yasutaka Nagai
IPC分类号： B01D53/94 , F01N3/08 , F02B1/04 , F02D41/02 , B01J29/06
CPC分类号： F01N3/10 , B01D53/9418 , B01D53/9495 , F01N13/009 , F01N13/0097 , F01N3/0842 , F01N3/106 , F01N3/108 , B01D2255/1021 , B01D2255/20761 , B01D2255/50 , B01D2255/911 , B01D53/9477 , F01N2240/25 , F01N2250/12 , F01N2370/04 , F01N2570/14 , F02B1/04 , F02D41/0275 , Y02T10/24
摘要： An exhaust gas purifying catalyst, for reducing nitrogen oxides and ammonia in an exhaust gas of an internal combustion engine, in an oxidizing atmosphere, is provided. The exhaust gas purifying catalyst comprises a first catalyst having zeolite carrying platinum and copper thereon. Preferably, the exhaust gas purifying catalyst further comprises a second catalyst having zeolite carrying copper thereon. Preferably, the second catalyst is arranged upstream of the first catalyst, with respect to the exhaust gas flow.
摘要翻译：提供一种用于在氧化气氛中还原内燃机的废气中的氮氧化物和氨的废气净化催化剂。废气净化催化剂包括具有在其上载有铂和铜的沸石的第一催化剂。优选地，废气净化催化剂还包含具有在其上载有铜的沸石的第二催化剂。优选地，第二催化剂相对于废气流布置在第一催化剂的上游。

10. 发明授权

US5964088A Device for purifying exhaust gas of engine 失效
标题翻译：发动机排气净化装置
公开(公告)号：US5964088A
公开(公告)日：1999-10-12
申请号：US822555
申请日：1997-03-19
申请人： Yukio Kinugasa , Takaaki Itou , Koichi Hoshi , Naoto Suzuki , Koichi Takeuchi , Takehisa Yaegashi , Kouhei Igarashi
发明人： Yukio Kinugasa , Takaaki Itou , Koichi Hoshi , Naoto Suzuki , Koichi Takeuchi , Takehisa Yaegashi , Kouhei Igarashi
IPC分类号： F02D43/00 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N9/00 , F01N13/02 , F02B1/04 , F02D41/02 , F02D41/04 , F02D41/14 , F01N3/00
CPC分类号： F02D41/1443 , B01D53/9431 , B01D53/9495 , F01N13/009 , F01N3/0842 , F01N3/0871 , F01N3/20 , F01N9/00 , F01N2240/25 , F01N2250/12 , F01N2560/025 , F01N2560/06 , F01N2610/02 , F01N2610/03 , F02B1/04 , F02D41/0275 , Y02T10/22 , Y02T10/42 , Y02T10/47
摘要： A device for purifying the exhaust gas of an engine having a plurality of cylinders divided into first and second cylinder groups, the first and the second cylinder groups being connected to first and second exhaust passage, respectively, and performing a lean operation, comprises an NH.sub.3 synthesizing catalyst arranged in the first exhaust passage, and an exhaust gas purifying catalyst arranged in an interconnecting passage, which interconnects the first passage downstream of the NH.sub.3 synthesizing catalyst and the second exhaust passage, for purifying the inflowing NO.sub.X and NH.sub.3. An additional engine performing a rich operation is provided and the exhaust gas thereof is fed to the first exhaust gas passage upstream of the NH.sub.3 synthesizing catalyst to make the exhaust gas air-fuel ratio of the exhaust gas flowing into the NH.sub.3 synthesizing catalyst rich, to thereby synthesize NH.sub.3 therein. An amount of NH.sub.3 or NO.sub.X flowing into the exhaust gas purifying catalyst is obtained, and the additional engine is controlled in accordance with the obtained NH.sub.3 or NO.sub.X amount to control the amount of the reducing agent flowing to the exhaust gas purifying catalyst.
摘要翻译：一种用于净化具有分成第一和第二气缸组的多个气缸的发动机的排气的装置，所述第一和第二气缸组分别连接到第一和第二排气通道，并执行精馏操作，包括NH 3 配置在第一排气通道中的合成催化剂和布置在互连通道中的排气净化催化剂，其将NH3合成催化剂下游的第一通道和第二排气通道互连，以净化流入的NO x和NH 3。提供执行富操作的附加发动机，其排气被送入NH 3合成催化剂上游的第一排气通道，使流入NH 3合成催化剂的废气的排气空燃比变浓，至由此合成NH 3。获得流入排气净化催化剂的NH 3或NO X量，根据得到的NH 3或NO X量控制附加发动机，以控制流向废气净化催化剂的还原剂的量。

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