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。

公开(公告)号：US5911681A

公开(公告)日：1999-06-15

申请号：US867725

申请日：1997-06-03

申请人： Hiroshi Tanaka ,  Takaaki Itou

发明人： Hiroshi Tanaka ,  Takaaki Itou

IPC分类号： F01N3/22 ,  B01D53/94 ,  F01N3/08 ,  F01N3/24 ,  F02D21/08 ,  F02M25/07 ,  F01N3/20

CPC分类号： F02D41/0065 ,  B01D53/9495 ,  F01N3/0835 ,  F01N3/0878 ,  F02M26/15 ,  F02M26/54 ,  F01N2240/18 ,  F01N2250/12 ,  F01N2410/12 ,  F02M26/16 ,  F02M26/66 ,  Y02T10/20 ,  Y02T10/47

摘要： To complete a regeneration process of an adsorbent adsorbing unburnt gas components, for a short period of time without making an operational condition of an internal combustion engine unstable and to prevent an ability of the adsorbent from being degraded, an exhaust gas purifying apparatus includes a first exhaust flow path and a second exhaust flow path branched downstream of the catalyst; a n adsorbent disposed in the first exhaust flow path for adsorbing unburnt gas components contained in the exhaust gas; and a recirculating device for recirculating at least part of the exhaust gas discharged from the adsorbent to an intake side of the internal combustion engine. A operational condition of the internal combustion engine is detected. A recirculation amount of the exhaust gas is changed in accordance with the detected operational condition.

摘要翻译： 为了完成吸附未燃烧气体成分的吸附剂的再生过程，在不使内燃机的运转状态不稳定的情况下，不会使吸附剂的能力下降，并且防止吸附剂劣化的能力，废气净化装置包括：第一 排气流路和在催化剂下游分支的第二排气流路; n吸附剂，其设置在所述第一排气流路中，用于吸附废气中所含的未燃烧气体成分; 以及用于将从吸附剂排出的废气的至少一部分再循环到内燃机的进气侧的再循环装置。 检测到内燃机的运转状况。 废气的再循环量根据检测到的操作条件而改变。

公开(公告)号：US5859365A

公开(公告)日：1999-01-12

申请号：US839595

申请日：1997-04-15

申请人： Ichiro Kataoka ,  Kazuyuki Sasaki ,  Kunimitsu Aoki ,  Shozo Ashizawa ,  Shinji Narama ,  Takaaki Itou ,  Toru Kidokoro ,  Yoshihiko Hyodo

发明人： Ichiro Kataoka ,  Kazuyuki Sasaki ,  Kunimitsu Aoki ,  Shozo Ashizawa ,  Shinji Narama ,  Takaaki Itou ,  Toru Kidokoro ,  Yoshihiko Hyodo

IPC分类号： G01F23/00 ,  G01F22/02 ,  G01F23/14 ,  G01F17/00

CPC分类号： G01F23/14 ,  G01F22/02

摘要： In a remaining fuel amount measuring apparatus for a fuel tank which is suited to the fuel tank designed to suppress generation of fuel vapor, a CPU actuates a piston to supply a prescribed amount of air into a pressure adjusting chamber, thereby increasing the pressure within the pressure adjusting chamber. From the Boyle's law, the increasing rate of air before air supply is inversely proportional to the volume V of the pressure adjusting chamber. Therefore, the CPU, referring to the pressure within the pressure adjusting chamber before and after the air supply, acquires the volume V of the pressure adjusting chamber, and subtracts the volume V of the pressure adjusting chamber from the internal volume of a tank body to acquire the volume of a fuel chamber, i.e. remaining fuel amount.

摘要翻译： 在适用于设计成抑制燃料蒸气产生的燃料箱的燃料箱的剩余燃料量测量装置中，CPU致动活塞，将规定量的空气供给到压力调节室，从而增加在 压力调节室。 根据Boyle定律，供气前空气的增加率与压力调节室的体积V成反比。 因此，CPU参照空气供给前后的压力调节室内的压力取得压力调节室的体积V，并将压力调节室的体积V从罐体的内部体积减去 获取燃料室的体积，即剩余燃料量。

公开(公告)号：US5551231A

公开(公告)日：1996-09-03

申请号：US344768

申请日：1994-11-23

申请人： Hiroshi Tanaka ,  Takaaki Itou ,  Keiso Takeda ,  Hidemi Ohnaka ,  Kazuhisa Kunitake ,  Toshio Tanahashi

发明人： Hiroshi Tanaka ,  Takaaki Itou ,  Keiso Takeda ,  Hidemi Ohnaka ,  Kazuhisa Kunitake ,  Toshio Tanahashi

IPC分类号： B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/22 ,  F01N3/24 ,  F01N3/32 ,  F01N9/00 ,  F01N13/02 ,  F02D35/00

CPC分类号： F01N3/222 ,  F01N13/009 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/22 ,  F01N9/00 ,  F02D35/0038 ,  F01N2250/12 ,  F01N3/32 ,  Y02T10/22 ,  Y02T10/47

摘要： An exhaust gas purification device comprising a three way catalyst, an oxidizing catalyst and a NOx absorbent which are arranged in this order in the exhaust passage. A rich air-fuel mixture is burned in the combustion chamber, and secondary air is supplied upstream of the three way catalyst so as to make the air-fuel ratio of the exhaust gas flowing into the three way catalyst a rich air-fuel ratio greater than the air-fuel ratio of the air-fuel mixture burned in the combustion chamber. Further, secondary air is supplied upstream of the oxidizing catalyst to make the air-fuel ratio of the exhaust gas flowing into the oxidizing catalyst and the NOx absorbent slightly leaner than the stoichiometric air-fuel ratio.

摘要翻译： 一种废气净化装置，其包括在排气通道中依次排列的三元催化剂，氧化催化剂和NOx吸收剂。 在燃烧室内燃烧浓空气混合物，向三元催化剂的上游供给二次空气，以使流入三元催化剂的废气的空燃比增加浓空燃比 比在燃烧室中燃烧的空气燃料混合物的空燃比高。 此外，在氧化催化剂的上游供给二次空气，使排气的空燃比流入氧化催化剂，NOx吸收剂比化学计量空燃比略微稀。

公开(公告)号：US5368002A

公开(公告)日：1994-11-29

申请号：US84704

申请日：1993-06-25

申请人： Shinichi Hoshino ,  Koji Okawa ,  Akinori Osanai ,  Takaaki Itou ,  Yoshihiko Hyodo ,  Toru Kidokoro

发明人： Shinichi Hoshino ,  Koji Okawa ,  Akinori Osanai ,  Takaaki Itou ,  Yoshihiko Hyodo ,  Toru Kidokoro

IPC分类号： F02M25/08 ,  F02D41/00 ,  F02M37/04

CPC分类号： F02D41/0045 ,  F02D41/0032 ,  F02M25/08

摘要： An evaporated fuel purge control apparatus includes a purge control valve arranged in a purge passage between a canister and an intake passage of an engine, the purge control valve being switched on and off in accordance with a control factor, the control factor indicating a duty ratio of an on-time of the purge control valve within a duty cycle to a total duty-cycle time, a detecting part for detecting an operating condition under which the engine is operating, and a flow rate control part for setting a control factor for the purge control valve in accordance with the operating condition detected by the detecting part, the control factor set by the flow rate control part allowing a flow rate of evaporated fuel fed from the canister into the intake passage through the purge control valve to be maintained at a constant level when the operating condition of the engine changes.

摘要翻译： 蒸发燃料净化控制装置包括排放在发动机的罐和进气通道之间的净化通道中的清洗控制阀，根据控制因素，清洗控制阀被打开和关闭，控制因素指示占空比 在占空比时间内的净化控制阀的接通时间为总占空比时间，检测发动机正在运转的运转状况的检测部，以及用于设定发动机运转的控制系数的流量控制部 清洗控制阀，根据由检测部检测到的操作条件，由流量控制部设定的控制系数允许从罐进入到通过清洗控制阀的进气通道中的蒸发燃料的流量保持在 发动机运行状态发生变化时的恒定值。

公开(公告)号：US5323751A

公开(公告)日：1994-06-28

申请号：US110232

申请日：1993-08-23

申请人： Akinori Osanai ,  Takaaki Itou ,  Yukio Kinugasa

发明人： Akinori Osanai ,  Takaaki Itou ,  Yukio Kinugasa

IPC分类号： F02D41/00 ,  F02M25/08 ,  F02M37/04

CPC分类号： F02M25/08 ,  F02D41/004 ,  F02M2025/0845

摘要： A device for controlling a fuel evaporative purge system having a solenoid valve arranged in a purge passage, comprises a unit for determining a maximum amount of fuel vapor to be purged, an air flow meter, a unit for calculating a maximum purging ratio of the maximum amount of fuel vapor to an amount of intake air, a unit for setting a purging ratio which is gradually varied during the purging process, and a unit for activating the solenoid valve. In the purging operation, the activating unit drives the valve at a duty-ratio identical to a ratio of the purging ratio to the maximum purging ratio.

摘要翻译： 一种用于控制燃料蒸发吹扫系统的装置，其具有布置在净化通道中的电磁阀，包括用于确定要净化的燃料蒸气的最大量的单元，空气流量计，用于计算最大净化比的最大净化比的单元 燃料蒸汽量相对于进气量，用于设定在清洗过程中逐渐变化的净化比的单元和用于启动电磁阀的单元。 在清扫操作中，致动单元以与清洗比与最大吹扫比的比率相同的占空比来驱动阀。

公开(公告)号：US4838229A

公开(公告)日：1989-06-13

申请号：US177289

申请日：1988-04-01

申请人： Kouji Uranishi ,  Takaaki Itou

发明人： Kouji Uranishi ,  Takaaki Itou

IPC分类号： F02D41/14 ,  F02D35/00 ,  F02D41/00 ,  F02D43/00 ,  F02M7/24 ,  F02M25/08

CPC分类号： F02D41/0042 ,  F02D35/0061

摘要： An air-fuel ratio control device comprising an electric air bleed control valve which controls the amount of air fed into the fuel passage of the carburetor so that an air-fuel ratio becomes equal to the stoichiometric air-fuel ratio. The degree of opening of the air bleed control valve is increased as electric current fed into the air bleed control valve is increased. Fuel vapor is fed into the intake passage from the canister via a purge control valve. When the purge control valve is opened, and the rate of increase in the amount of current fed into the air bleed control valve exceeds a fixed rate, the current fed into the air bleed control valve is instantaneously increased by a fixed amount.

摘要翻译： 一种空燃比控制装置，包括电气排气控制阀，其控制供给到化油器的燃料通道中的空气量，使得空燃比变得等于理论空燃比。 随着供给到排气控制阀的电流增加，排气控制阀的打开程度增加。 燃料蒸气经由净化控制阀从罐进料到进气通道中。 当净化控制阀打开，并且供给到排气控制阀的电流量增加的速度超过固定速率时，供给到排气控制阀的电流立即增加固定量。