公开(公告)号：US20100115919A1

公开(公告)日：2010-05-13

申请号：US12594865

申请日：2008-03-21

申请人： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

发明人： Kimikazu Yoda ,  Takaaki Itou ,  Keisuke Sano ,  Kazuhiro Wakao

IPC分类号： F01N3/00 ,  F01N9/00

CPC分类号： F01N11/00 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2257/404 ,  F01N3/0807 ,  F01N3/18 ,  F01N3/20 ,  F01N2570/14 ,  Y02A50/2344 ,  Y02T10/20 ,  Y02T10/47

摘要： The present invention relates to an exhaust emission control device having an NOx adsorbent, and makes it possible to judge whether the performance of the NOx adsorbent is degraded temporarily or permanently. The amounts of NOx and water adsorbed by the NOx adsorbent are measured during an actual operation of an internal combustion engine. A reference line indicating the correlation between a preselected water adsorption amount and NOx adsorption amount is then referenced to determine a reference value y0 of the NOx adsorption amount that corresponds to a measured value x1 of the water adsorption amount. Next, a measured value y1 of the NOx adsorption amount is compared against the reference value y0 to output a signal in which the result of the comparison is reflected.

摘要翻译： 本发明涉及一种具有NOx吸附剂的废气排放控制装置，并且能够判断NOx吸附剂的性能是否暂时或永久地劣化。 在内燃机的实际操作期间，测量NOx吸附剂吸附的NOx和水的量。 然后参考表示预选水吸附量与NOx吸附量之间的相关性的参考线，以确定对应于水吸附量的测量值x1的NOx吸附量的参考值y 0。 接下来，将NOx吸附量的测量值y1与参考值y0进行比较，以输出反映比较结果的信号。

公开(公告)号：US20050235967A1

公开(公告)日：2005-10-27

申请号：US11111826

申请日：2005-04-22

申请人： Takaaki Itou ,  Koichi Hoshi ,  Kouichi Oda ,  Minoru Honda ,  Hideki Suzuki ,  Toshiki Annoura ,  Masahiro Mochizuki ,  Futaba Kanehira

发明人： Takaaki Itou ,  Koichi Hoshi ,  Kouichi Oda ,  Minoru Honda ,  Hideki Suzuki ,  Toshiki Annoura ,  Masahiro Mochizuki ,  Futaba Kanehira

IPC分类号： F02M33/00 ,  F02M33/02 ,  F02M35/10

CPC分类号： F02M35/10281 ,  F02M33/02 ,  F02M35/02 ,  F02M35/10052 ,  F02M35/112

摘要： An evaporative fuel adsorbent 32, which adsorbs evaporative fuel, is positioned substantially parallel to a sidewall surface 30 of a surge tank 22. A retention member 34 is positioned between the sidewall surface 22 and evaporative fuel adsorbent 32 to prevent oil, which runs down on the sidewall surface 22, from adhering to the evaporative fuel adsorbent 32. The evaporative fuel adsorbent 32 is mounted on the sidewall surface 30 of the surge tank 22 via the retention member 34.

摘要翻译： 吸附蒸发燃料的蒸发燃料吸附剂32基本平行于稳压罐22的侧壁表面30定位。 保持构件34位于侧壁表面22和蒸发燃料吸附剂32之间，以防止在侧壁表面22上向下流动的油粘附到蒸发燃料吸附剂32上。 蒸发燃料吸附剂32通过保持构件34安装在缓冲罐22的侧壁表面30上。

公开(公告)号：US20050188962A1

公开(公告)日：2005-09-01

申请号：US11067507

申请日：2005-02-25

申请人： Kouichi Oda ,  Minoru Honda ,  Yuushi Matsushita ,  Koichi Hoshi ,  Takaaki Itou ,  Toshiki Annoura ,  Hideki Suzuki ,  Futaba Kanehira ,  Masahiro Mochizuki

发明人： Kouichi Oda ,  Minoru Honda ,  Yuushi Matsushita ,  Koichi Hoshi ,  Takaaki Itou ,  Toshiki Annoura ,  Hideki Suzuki ,  Futaba Kanehira ,  Masahiro Mochizuki

IPC分类号： F01M13/00 ,  F02M25/08 ,  F02M33/00 ,  F02M35/024 ,  F02M35/10

CPC分类号： F02M25/08 ,  F02M35/024

摘要： A fuel vapor adsorbing device (10, 60, 70, 70′, 80) for adsorbing residual fuel vapors that remain in an intake conduit (1, 2, 3, 4) of an induction system of an internal combustion engine when the internal combustion engine is stopped may include an adsorbing member (40, 40′) that is constructed to adsorb the residual fuel vapors and is disposed along an inner wall surface of the intake conduit. The adsorbing member is arranged and constructed to form a supplemental intake path (T, T′, T′″) between the adsorbing member and the inner wall surface of the intake conduit, so that intake air of the engine can flow through the supplemental intake path.

摘要翻译： 一种燃料蒸气吸附装置（10,60,70,70'，80），用于吸收残留在内燃机的导入系统的进气导管（1,2,3,4）内的燃料蒸汽，当内燃机 发动机停止可以包括吸附构件（40,40'），该吸附构件被构造成吸附剩余的燃料蒸气并沿着进气导管的内壁表面设置。 吸附构件被布置和构造成在吸附构件和进气导管的内壁表面之间形成补充进气路径（T，T'，T“'），使得发动机的进气可以流过补充 进气道。

公开(公告)号：US06499294B1

公开(公告)日：2002-12-31

申请号：US09399287

申请日：1999-09-17

申请人： Kenji Katoh ,  Takaaki Itou ,  Hiroshi Tanaka ,  Shuichi Kubo ,  Yoshiyuki Mandokoro ,  Masahiro Taki

发明人： Kenji Katoh ,  Takaaki Itou ,  Hiroshi Tanaka ,  Shuichi Kubo ,  Yoshiyuki Mandokoro ,  Masahiro Taki

IPC分类号： F01N310

CPC分类号： F01N3/0864 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N2250/12 ,  F01N2510/00 ,  F01N2510/06 ,  F01N2570/16 ,  F02D41/0275 ,  Y02T10/22 ,  Y02T10/24

摘要： A converter containing a NOx absorbing and reducing catalyst is disposed in the exhaust passage of an internal combustion engine. The upstream half portion (portion of the inlet side) of the substrate of the NOx absorbing and reducing catalyst in the converter carries the oxygen storage component that absorbs oxygen in the exhaust gas when the air-fuel ratio of the exhaust gas is lean and releases the absorbed oxygen when the air-fuel ratio of the exhaust gas flowing in is rich in addition to carrying the NOx absorbing and reducing catalyst. After NOx is absorbed by the NOx absorbing and reducing catalyst as a result of operating the engine at a lean air-fuel ratio, the engine is operated at a rich air-fuel ratio, so that NOx is released from the NOx absorbing and reducing catalyst and is purified by reduction. Here, oxygen is released from the oxygen storage component carried by the upstream half portion of the substrate and is reacted with the H2 and CO components in the exhaust gas, so that the temperature of the NOx absorbing and reducing catalyst is raised within short periods of time due to the heat of reaction. Therefore, the catalyst exhibits increased activity and the NOx absorbing and reducing catalyst exhibits improved NOx purification capability.

摘要翻译： 含有NOx吸收和还原催化剂的转化器设置在内燃机的排气通道中。 转换器中的NOx吸收还原催化剂的基板的上游半部（入口侧的部分）在废气的空燃比稀的时候携带吸收废气中的氧的储氧成分，释放 除了携带NOx吸收还原催化剂之外，当排出的废气的空燃比富含时，吸收的氧也富含。 由于作为发动机以稀薄的空燃比运转，NO x吸收还原催化剂吸收了NOx之后，发动机的空燃比浓度较高，使NO x从NOx吸收还原催化剂 并通过还原进行纯化。 这里，从由基板的上游半部分承载的储氧成分中释放出氧，并与废气中的H 2和CO成分反应，使NOx吸收还原催化剂的温度在短时间内升高 时间由于反应的热量。 因此，催化剂表现出增加的活性，NOx吸收和还原催化剂表现出提高的NOx净化能力。

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。

公开(公告)号：US6109024A

公开(公告)日：2000-08-29

申请号：US75358

申请日：1998-05-08

申请人： Yukio Kinugasa ,  Takaaki Itou ,  Koichi Takeuchi

发明人： Yukio Kinugasa ,  Takaaki Itou ,  Koichi Takeuchi

IPC分类号： F01N3/08 ,  B01D53/86 ,  B01D53/94 ,  F01N3/24 ,  F01N3/28 ,  F01N13/02 ,  F01N13/04 ,  F02B75/12 ,  F02D41/02 ,  F02D41/40 ,  F01N3/00

CPC分类号： F01N3/0842 ,  F01N13/009 ,  F01N13/011 ,  F01N3/101 ,  F02D41/0275 ,  F02D41/405 ,  F01N2900/0418 ,  F02B2075/125 ,  F02D2041/389 ,  Y02T10/123 ,  Y02T10/22 ,  Y02T10/44

摘要： In an exhaust gas purification device, a three-way catalyst, an NO.sub.x absorbing-reducing catalyst and an NH.sub.3 adsorbing-denitrating catalyst are disposed in an exhaust gas passage of the internal combustion engine. The engine is provided with direct cylinder injection valves which inject fuel directly into the respective cylinders. A control circuit controls the amount of fuel injected from the injection valve so that the air-fuel ratio of the combustion in the cylinders becomes a lean air-fuel ratio during the normal operation of the engine. Therefore, a lean air-fuel ratio exhaust gas is discharged from the cylinders during the normal operation and NO.sub.x, in the exhaust gas is absorbed by the NO.sub.x absorbing-reducing catalyst. When the amount of NO.sub.x absorbed in the NO.sub.x absorbing-reducing catalyst increases to a predetermined level, the control circuit performs an additional fuel injection during the expansion stroke or exhaust stroke of cylinders in order to adjust the air-fuel ratio of the exhaust gas leaving the cylinders to a rich air-fuel ratio. The rich air-fuel ratio exhaust gas leaving the cylinders flows into the three-way catalyst and NO.sub.x in the exhaust gas is converted into NH.sub.3 at the three-way catalyst. When the rich air-fuel ratio exhaust gas flows through the NO.sub.x absorbing-reducing catalyst, NO.sub.x is released from the NO.sub.x absorbing-reducing catalyst and is reduced to N.sub.2 by NH.sub.3 in the exhaust gas.

摘要翻译： 在排气净化装置中，在内燃机的废气通道中设置三元催化剂，NOx吸收还原催化剂和NH 3吸附脱硝催化剂。 发动机配有直接气缸喷射阀，其将燃料直接喷射到相应的气缸中。 控制电路控制从喷射阀喷射的燃料量，使得在发动机的正常运行期间气缸中的燃烧空燃比变为稀空燃比。 因此，在正常操作期间，从空气中排出贫空燃比废气，并且排气中的NOx被NOx吸收还原催化剂吸收。 当NOx吸收还原催化剂吸收的NOx的量增加到预定水平时，控制电路在气缸的膨胀冲程或排气冲程期间执行额外的燃料喷射，以便调节离开废气的空燃比 气缸以较高的空燃比。 离开气缸的富空燃比废气流入三元催化剂，废气中的NOx在三元催化剂下转化为NH3。 当富空燃比废气流过NOx吸收还原催化剂时，NOx从NOx吸收还原催化剂释放，并通过排气中的NH 3还原为N2。

公开(公告)号：US6014859A

公开(公告)日：2000-01-18

申请号：US136766

申请日：1998-08-19

申请人： Kouji Yoshizaki ,  Takaaki Itou

发明人： Kouji Yoshizaki ,  Takaaki Itou

IPC分类号： B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/22 ,  F01N3/24 ,  F01N3/30 ,  F01N13/02 ,  F01N13/04 ,  F02D41/02 ,  F02D41/34 ,  F02D41/36 ,  F01N3/00

CPC分类号： F01N3/222 ,  B01D53/9495 ,  F01N13/009 ,  F01N13/011 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/2053 ,  F01N3/22 ,  F02D41/027 ,  F02D41/028 ,  F01N2570/04 ,  F01N3/30 ,  Y02T10/22

摘要： An engine has a plurality of the cylinders. The cylinders are divided into a first cylinder group and a second cylinder group, and each cylinder group is connected, via a corresponding branch exhaust passage, to a common interconnecting exhaust passage. In the interconnecting exhaust passage, an exhaust gas purifying catalyst is arranged. The air-fuel ratio of the exhaust gas of the first cylinder group is made lean to feed oxygen to the exhaust gas purifying catalyst, and the air-fuel ratio of the second cylinder group is made rich to feed fuel for heating to the exhaust gas purifying catalyst, so that the oxygen and the fuel for heating react with each other to heat the exhaust gas purifying catalyst to reactivate the exhaust gas purifying catalyst when the reactivation of the exhaust gas purifying catalyst is must be performed. In each branch exhaust passage, a start catalyst is arranged.

摘要翻译： 发动机具有多个气缸。 气缸分为第一气缸组和第二气缸组，并且每个气缸组经由相应的分支排气通道连接到共同的互连排气通道。 在相互连接的排气通道中布置排气净化催化剂。 第一气缸组的排气的空燃比被稀薄以向排气净化催化剂供给氧，并且第二气缸组的空燃比变浓以供给用于加热到废气的燃料 使得氧气和加热燃料相互反应以加热废气净化催化剂，以便在必须执行废气净化催化剂的再活化时重新激活废气净化催化剂。 在每个分支排气通道中，布置起始催化剂。

公开(公告)号：US5974793A

公开(公告)日：1999-11-02

申请号：US837933

申请日：1997-04-11

申请人： Yukio Kinugasa ,  Takaaki Itou ,  Naoto Suzuki ,  Koichi Takeuchi ,  Hiroshi Tanaka ,  Naohide Fuwa

发明人： Yukio Kinugasa ,  Takaaki Itou ,  Naoto Suzuki ,  Koichi Takeuchi ,  Hiroshi Tanaka ,  Naohide Fuwa

IPC分类号： F02B75/10 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/28 ,  F01N9/00 ,  F01N13/02 ,  F01N13/04 ,  F02B75/18 ,  F02D41/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/14 ,  F02D41/34 ,  F02D43/00 ,  F02D45/00 ,  F02M25/07 ,  F02P5/15 ,  F01N3/00

CPC分类号： F02D41/0082 ,  B01D53/9454 ,  B01D53/9495 ,  F01N13/009 ,  F01N13/011 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/20 ,  F01N3/2053 ,  F01N9/00 ,  F02D41/1475 ,  F02M26/15 ,  F02M26/38 ,  F01N2250/12 ,  F01N2430/06 ,  F01N2610/02 ,  F02D41/0275 ,  Y02T10/22 ,  Y02T10/47

摘要： In an exhaust gas purification device, a No. 1 cylinder of the engine is operated at a rich air-fuel ratio and other cylinders (No. 2 to No. 4) are operated at a lean air-fuel ratio. The exhaust gases from the No. 1 and No. 2 cylinders are mixed with each other to form a rich air-fuel ratio exhaust gas mixture. Further, since the air-fuel ratio of the No. 2 cylinder is lean, the exhaust gas from the No. 2 cylinder contains a relatively large amount of NO.sub.x. This rich air-fuel ratio exhaust gas mixture which contains a relatively large amount of NO.sub.X is supplied to a three-way catalyst. At the three-way catalyst, part of the NO.sub.X in the exhaust gas mixture is converted to NH.sub.3. The exhaust gas mixture flowing out from the three-way catalyst and the lean exhaust gas from the No. 3 and No. 4 flow into a common exhaust gas passage where they mix with each other to form a lean exhaust gas containing NH.sub.3 from the three-way catalyst and NO.sub.X from the No. 3 and No. 4 cylinders. This lean exhaust gas flows into a denitrating catalyst disposed on the common exhaust gas passage in which NO.sub.X in the exhaust gas is reduced by the NH.sub.3.

摘要翻译： 在废气净化装置中，发动机的1号气缸以较高的空燃比运转，其他气缸（No.2〜No.4）以稀空燃比运转。 来自1号和2号气缸的废气彼此混合，形成浓空气燃料比的废气混合物。 此外，由于2缸的空燃比为稀，所以来自2号气缸的废气含有较多的NOx。 将含有较多量的NO x的浓空燃比废气混合物供给至三元催化剂。 在三元催化剂中，废气混合物中的一部分NO x转化为NH 3。 从三元催化剂流出的废气混合物和来自3号和4号的贫废气流入共同的废气通道，在那里它们彼此混合，形成三 来自3号和4号气瓶的催化剂和NOX。 这种贫废气流入设置在排气中的NO x被NH 3还原的共用排气通道上的脱硝催化剂中。

公开(公告)号：US5971255A

公开(公告)日：1999-10-26

申请号：US789772

申请日：1997-01-28

申请人： Yukihiro Yamamoto ,  Takuzou Kako ,  Kazuo Yoshida ,  Yuuji Nakashima ,  Kouji Yoshizaki ,  Takaaki Itou

发明人： Yukihiro Yamamoto ,  Takuzou Kako ,  Kazuo Yoshida ,  Yuuji Nakashima ,  Kouji Yoshizaki ,  Takaaki Itou

IPC分类号： B01J35/02 ,  B01D53/86 ,  B01J35/04 ,  B23K1/00 ,  F01N3/20 ,  F01N3/28 ,  B23K31/00 ,  B01J32/00

CPC分类号： B23K1/0014 ,  F01N3/2026 ,  F01N3/281 ,  Y02T10/26

摘要： In the production of a metallic honeycomb body for use as a metallic carrier, for supporting a catalyst, in the purification of an exhaust gas from automobiles or the like, a desired joint site for each layer constituting the metallic honeycomb body is preset, and, when a portion of contact between a metallic corrugated foil and a metallic flat foil for forming the metallic honeycomb body has reached the joint site, a brazing foil which has been cut into a predetermined length is inserted and enfolded in the contact portion.

摘要翻译： 在用作金属载体的金属蜂窝体的制造中，用于支撑催化剂，在从汽车等排气净化中，预先构成构成金属蜂窝体的各层的期望的接合部位， 当金属波纹箔片和用于形成金属蜂窝体的金属扁平箔片之间的接触部分已经到达接合部位时，已经切割成预定长度的钎焊箔被插入和折叠在接触部分中。

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。