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11. 发明授权

US5472673A 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：US5472673A
公开(公告)日：1995-12-05
申请号：US340438
申请日：1994-11-14
申请人： Masato Goto , Satoshi Iguchi , Kenji Katoh , Tetsuro Kihara
发明人： Masato Goto , Satoshi Iguchi , Kenji Katoh , Tetsuro Kihara
IPC分类号： B01D53/04 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/10 , F01N3/24 , F01N13/02 , F02D41/02 , B01D53/34
CPC分类号： F01N3/085 , B01D53/0454 , B01D53/8637 , B01D53/9422 , B01D53/9495 , F01N13/009 , F01N3/0807 , F01N3/0842 , F01N3/0871 , F02D41/0275 , F02D41/0285 , B01D2255/1021 , B01D2255/2042 , B01D2255/2045 , B01D2255/2061 , B01D2255/2063 , F01N2240/18 , F01N2570/04 , F01N2570/14
摘要： An engine comprising an exhaust passage having therein a NO.sub.x absorbent which absorbs the NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent is lean and releases the absorbed NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent becomes the stoichiometric air-fuel ratio or rich. A sulphur trapping device for trapping SO.sub.x contained in the exhaust gas is arranged in the exhaust passage upstream of the NO.sub.x absorbent.
摘要翻译：一种发动机，其特征在于，具有排气通路，其内部具有NOx吸收剂，当流入所述NOx吸收剂的废气的空燃比为稀时吸收NOx，并且当排出的废气的空燃比流入 NOx吸收剂成为化学计量空燃比或浓度。用于捕集废气中所含的SOx的捕集捕集装置设置在NOx吸收剂上游的排气通道中。

12. 发明授权

US5412945A Exhaust purification device of an internal combustion engine 失效
标题翻译：内燃机排气净化装置
公开(公告)号：US5412945A
公开(公告)日：1995-05-09
申请号：US107829
申请日：1993-08-26
申请人： Kenji Katoh , Tokuta Inoue , Hidetaka Nohira , Kiyoshi Nakanishi , Satoshi Iguchi , Tetsuro Kihara , Hideaki Muraki
发明人： Kenji Katoh , Tokuta Inoue , Hidetaka Nohira , Kiyoshi Nakanishi , Satoshi Iguchi , Tetsuro Kihara , Hideaki Muraki
IPC分类号： B01D53/04 , B01D53/94 , F01N3/08 , F01N3/18 , F01N9/00 , F01N13/02 , F02B1/04 , F02D41/02 , F01N3/28
CPC分类号： B01D53/9481 , B01D53/02 , B01D53/0454 , B01D53/9495 , F01N13/0097 , F01N3/0807 , F01N3/0842 , F01N3/0871 , F01N3/18 , F01N9/00 , F02D41/0275 , B01D2251/30 , B01D2251/40 , B01D2253/25 , B01D2253/342 , B01D2257/404 , B01D2258/01 , B01D2259/40009 , B01D2259/4145 , B01D2259/4566 , B01D53/0415 , F01N2240/18 , F02B1/04 , Y02T10/47
摘要： A NO.sub.x absorbent (18) which absorbs the NO.sub.x when the air-fuel ratio of the exhaust gas flowing into the NO.sub.x absorbent (18) is lean and releases the absorbed NO.sub.x when the oxygen concentration of the exhaust gas flowing into the NO.sub.x absorbent (18) is lowered, is arranged in the exhaust passage of the engine. The amount of alkali metals, alkali-earth metals or rare-earth metals contained in the NO.sub.x absorbent (18) positioned on the downstream side, is made lower than the amount of alkali metals, alkali-earth metals or rare-earth metals contained in the NO.sub.x absorbent (18) positioned on the upstream side, to increase a reducing ability of the NO.sub.x absorbent (18) positioned on the downstream side as compared to the reducing ability of the NO.sub.x absorbent (18) positioned on the upstream side.
摘要翻译： PCT No.PCT / JP92 / 01710 Sec。 371日期：1993年8月26日 102（e）日期1993年8月26日PCT提交1992年12月25日PCT公布。 WO93 / 12863 PCT出版物日期1997年7月8日。当流入NOx吸收剂（18）的废气的空燃比是稀的时吸收NOx的NOx吸收剂（18），并且当废气的氧浓度流入NOx吸收剂（18）的流量降低，设置在发动机的排气通道内。使位于下游侧的NOx吸收剂（18）中所含的碱金属，碱土金属或稀土类金属的量比含有的碱金属，碱土金属或稀土金属的量少位于上游侧的NOx吸收剂（18），与位于上游侧的NOx吸收剂（18）的还原能力相比，能够提高位于下游侧的NOx吸收剂（18）的还原能力。

13. 发明授权

US5313792A Exhaust gas purification apparatus for an internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US5313792A
公开(公告)日：1994-05-24
申请号：US947663
申请日：1992-09-18
申请人： Kenji Katoh , Satoshi Iguchi , Tetsuro Kihara
发明人： Kenji Katoh , Satoshi Iguchi , Tetsuro Kihara
IPC分类号： B01D53/94 , B01J29/06 , F01N3/20 , F01N3/24 , F01N3/28 , F01N13/02 , F01N3/10
CPC分类号： B01D53/945 , B01D53/9477 , F01N13/009 , F01N13/0097 , F01N3/20 , F01N2370/04 , F01N2510/063 , Y02T10/22
摘要： An exhaust gas purification system includes a transition metal/zeolite first catalyst, a three-way second catalyst, and a noble metal-type third catalyst arranged in that order in the direction of exhaust gas flow in an exhaust conduit of an internal combustion engine capable of fuel combustion at lean air-fuel ratios. NOx which has not been purified by the transition metal/zeolite first catalyst is oxidized by the three-way second catalyst into NO.sub.2, which the noble metal-type third catalyst can easily decompose into N.sub.2 and O.sub.2.
摘要翻译：排气净化系统包括过渡金属/沸石第一催化剂，三向第二催化剂和贵金属型第三催化剂，其依次排列在排气管内的内燃机的排气管道中，的燃料燃烧在稀薄的空气 - 燃料比。未被过渡金属/沸石第一催化剂净化的NOx被三元第二催化剂氧化成NO2，贵金属型第三催化剂容易分解成N 2和O 2。

14. 发明授权

US5951956A Catalyst for purifying exhaust gas and method for purifying exhaust gas 失效
标题翻译：废气净化催化剂及排气净化方法
公开(公告)号：US5951956A
公开(公告)日：1999-09-14
申请号：US391841
申请日：1995-02-17
申请人： Hideaki Muraki , Motohisa Saiki , Mariko Adachi , Shinichi Matsumoto , Takaaki Kanazawa , Kenji Katoh , Satoshi Iguchi , Tetsuro Kihara , Syuji Tateishi , Koichi Kasahara
发明人： Hideaki Muraki , Motohisa Saiki , Mariko Adachi , Shinichi Matsumoto , Takaaki Kanazawa , Kenji Katoh , Satoshi Iguchi , Tetsuro Kihara , Syuji Tateishi , Koichi Kasahara
IPC分类号： B01D53/94 , B01J23/10 , B01J23/58 , B01J23/63 , B01J37/02 , B01D53/68
CPC分类号： B01D53/945 , B01J23/10 , B01J23/58 , B01J23/63 , B01J37/0242 , Y02T10/22
摘要： A catalyst for purifying an exhaust gas for simultaneously removing carbon monoxide, hydrocarbons and nitrogen oxides contained in the exhaust gas under an oxygen rich atmosphere, comprising a carrier composed of a porous material, and barium oxide, lanthanum oxide and platinum supported on the carrier, and a method for purifying an exhaust gas by bringing the exhaust gas under an oxygen rich atmosphere into contact with the above-mentioned catalyst.
摘要翻译：一种用于净化排气的催化剂，用于同时除去在富氧气氛下包含在废气中的一氧化碳，烃和氮氧化物，其包括由多孔材料构成的载体和负载在载体上的氧化钡，氧化镧和铂，以及通过使排气在富氧气氛下与上述催化剂接触来净化废气的方法。

15. 发明授权

US06477834B1 Exhaust emission controlling apparatus of internal combustion engine 有权
标题翻译：内燃机用废气净化装置
公开(公告)号：US06477834B1
公开(公告)日：2002-11-12
申请号：US09423565
申请日：1999-11-10
申请人： Takamitsu Asanuma , Kenji Katoh , Masato Goto
发明人： Takamitsu Asanuma , Kenji Katoh , Masato Goto
IPC分类号： F01N300
CPC分类号： F01N3/0842 , F01N3/0871 , F02D41/027 , F02D41/0275 , F02D41/04 , F02D41/042 , F02D41/062 , F02D41/1441 , F02D41/1475 , F02D41/187 , F02D2200/0806
摘要： A NOx absorbent (18) is disposed in an exhaust passage (17) of an internal combustion engine (1), and a control circuit (30) is provided for controlling the amount of fuel injection into the engine (1). The control circuit 30 works to operate the engine at a rich air-fuel ratio by increasing the amount of fuel supply to the engine so that NOx absorbed by the NOx absorbent when the engine was last stopped is released in all amounts and is purified by reduction after the start of the engine until the engine is first operated at a lean air-fuel ratio. This prevents the release of unpurified NOx from the NOx absorbent (18) at the start of the engine. The operation at a lean air-fuel ratio is assumed in a state where almost no NOx has been absorbed by the NOx absorbent (18), enabling the absorbing capacity of the NOx absorbent to be utilized to the maximum degree.
摘要翻译： NOx吸收剂（18）设置在内燃机（1）的排气通道（17）中，并且设置有用于控制喷射到发动机（1）中的燃料量的控制电路（30）。控制回路30通过增加对发动机的燃料供给量而使发动机以丰富的空燃比进行动作，使发动机停止时的NOx吸收剂吸收的NOx全部释放，并通过还原在发动机起动之后，直到发动机首先以稀薄的空燃比运转。这防止在发动机起动时从NOx吸收剂（18）释放未纯化的NOx。假设在空气 - 稀燃比下的操作处于NOx吸收剂（18）几乎没有被NOx吸收的状态，能够使NOx吸收剂的吸收能力达到最大程度。

16. 发明授权

US5974794A Exhaust gas purification device for an internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US5974794A
公开(公告)日：1999-11-02
申请号：US54172
申请日：1998-04-02
申请人： Masato Gotoh , Kenji Katoh , Takamitsu Asanuma
发明人： Masato Gotoh , Kenji Katoh , Takamitsu Asanuma
IPC分类号： F02D45/00 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/00 , F02D41/02 , F02D41/04 , F01N3/00
CPC分类号： F02D41/042 , B01D53/9422 , B01D53/9481 , B01D53/9495 , F01N3/0238 , F01N3/0842 , F01N3/0885 , F02D41/0275 , B01D2255/1021 , B01D2255/2042 , F01N2610/02 , F01N2610/03 , F01N2610/04
摘要： The exhaust gas purification device includes a NO.sub.x absorbent disposed in an exhaust gas passage of an internal combustion engine. The engine is mainly operated at a lean air-fuel ratio. The NO.sub.x absorbent absorbs NO.sub.x in the exhaust gas from the engine when the exhaust gas flowing into the NO.sub.x absorbent is at a lean air-fuel ratio, and releases the NO.sub.x absorbed therein and reduces it when the air-fuel ratio of the exhaust gas becomes a rich air-fuel ratio. A control circuit is provided for controlling the operating air-fuel ratio of the engine. When the ignition switch of the engine is turned off, the control circuit continues the engine operation for a predetermined period before terminating the engine operation. During this engine operation, the operating air-fuel ratio of the engine is controlled at a rich air-fuel ratio to supply exhaust gas with a rich air-fuel ratio to the NO.sub.x absorbent. Therefore, NO.sub.x absorbed and held therein when the ignition switch is turned off is released and reduced by the rich air-fuel ratio exhaust gas from the engine. Since the NO.sub.x absorbent is maintained at the condition where no NO.sub.x remains in the NO.sub.x absorbent after the engine has stopped, unreduced NO.sub.x is not released from the NO.sub.x absorbent even if the NO.sub.x absorbent is cooled after the engine has stopped.
摘要翻译：废气净化装置包括设置在内燃机的废气通道中的NOx吸收剂。发动机主要运行在稀薄的空燃比。当排入NOx吸收剂的排气处于稀薄的空燃比时，NOx吸收剂吸收来自发动机的废气中的NOx，并且当排气的空燃比变为丰富的空燃比。提供控制电路用于控制发动机的运转空燃比。当发动机的点火开关关闭时，控制电路在终止发动机运转之前，继续发动机运转一段预定的时间。在该发动机运转中，将发动机的运转空燃比控制在较大的空燃比，以向NOx吸收剂供给浓空燃比的排气。因此，当点火开关关闭时吸收并保持的NOx被释放并由来自发动机的富空燃比废气减少。由于NOx吸收剂在发动机停止之后保持在NOx吸收剂中不存在NOx的状态，所以即使在发动机停止后NOx吸收剂被冷却，未还原的NOx也不会从NOx吸收剂中释放。

17. 发明授权

US5848529A Apparatus and method for purifying exhaust gas in an internal combustion engine 失效
标题翻译：一种用于净化内燃机废气的装置和方法
公开(公告)号：US5848529A
公开(公告)日：1998-12-15
申请号：US933618
申请日：1997-09-08
申请人： Kenji Katoh , Masato Gotoh , Takamitsu Asanuma
发明人： Kenji Katoh , Masato Gotoh , Takamitsu Asanuma
IPC分类号： F01L1/34 , F01N3/08 , F01N3/10 , F01N3/24 , F01N3/28 , F02D13/02 , F02D41/00 , F02D41/02 , F02D41/04 , F01N3/00
CPC分类号： F02D13/0215 , F01L1/34 , F01N3/0842 , F02D13/0261 , F02D41/0002 , F02D41/0275 , F01L2201/00 , F02D2013/0292 , F02D2041/001 , Y02T10/18 , Y02T10/42
摘要： An apparatus for, and a method of, purifying exhaust gas emitted from an internal combustion engine reduces fuel consumption under a lean operating condition and generates high torque under a rich operating condition without deteriorating the cleanness of exhaust gas and the driveability of the engine. The apparatus and method improve the durability of a variable valve timing mechanism of the engine. The engine operation involves lean and rich operating conditions. The variable valve timing mechanism of the apparatus changes the open and close timing of at least one of intake and exhaust valves of the engine. The apparatus further has a catalytic converter in an exhaust system, to occlude NOx under the lean operating condition and discharge and reduce the occluded NOx under the rich operating condition. The apparatus also has a prohibition unit for prohibiting the variable valve timing mechanism from changing the valve open and close timing of the valves when the air-fuel ratio of the engine is changed from lean to rich to discharge and reduce the occluded NOx.
摘要翻译：用于净化从内燃机排出的废气的装置和方法，在稀薄运行状态下降低燃料消耗，并且在丰富的运行状态下产生高扭矩，而不会降低排气的清洁度和发动机的驱动性。该装置和方法提高了发动机的可变气门正时机构的耐久性。引擎操作涉及精益和丰富的操作条件。该装置的可变气门正时机构改变发动机的进气门和排气门中的至少一个的打开和关闭正时。该装置还具有排气系统中的催化转化器，以在稀薄运行状态下封闭NOx，并在富运行条件下排放并减少封闭的NOx。该装置还具有禁止单元，用于当发动机的空燃比从稀燃变为浓度以排出并且减少封闭的NOx时，禁止可变气门正时机构改变阀的开阀和关闭正时。

18. 发明授权

US5155994A Exhaust gas purification system for an internal combustion engine 失效
标题翻译：用于内燃机的排气净化系统
公开(公告)号：US5155994A
公开(公告)日：1992-10-20
申请号：US823184
申请日：1992-01-21
申请人： Hideaki Muraki , Kiyohiko Oishi , Kenji Katoh , Shinichi Takeshima
发明人： Hideaki Muraki , Kiyohiko Oishi , Kenji Katoh , Shinichi Takeshima
IPC分类号： B01D53/56 , B01D53/74 , B01D53/94 , B01J23/40 , B01J29/40 , B01J35/02 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F01N9/00 , F01N13/02 , F02M25/07
CPC分类号： F02D41/005 , B01D53/945 , B01D53/9454 , B01D53/9495 , F01N13/009 , F01N13/0097 , F01N3/0892 , F01N3/20 , F01N3/2006 , F01N3/2882 , F01N9/00 , B01D2259/818 , F02D41/0235 , F02D41/1446 , F02M26/15 , Y02C20/10 , Y02T10/22 , Y02T10/26 , Y02T10/47
摘要： A noble metal base catalyst for decomposing a portion of NOx included in engine exhaust gas into intermediate products such as N.sub.2 O and NO.sub.2 is installed in an exhaust conduit of a lean burn engine. Further, an intermediate product decomposing means for decomposing the intermediate products produced by the noble metal base catalyst into N.sub.2 and O.sub.2 is installed downstream of the noble metal base catalyst. The noble metal base catalyst has a high thermal durability, and the noble metal base catalyst and the intermediate product decomposing means decompose NOx into N.sub.2 and O.sub.2 without a large amount of HC.

19. 发明授权

US5732554A Exhaust gas purification device for an internal combustion engine 失效
标题翻译：内燃机用废气净化装置
公开(公告)号：US5732554A
公开(公告)日：1998-03-31
申请号：US600795
申请日：1996-02-13
申请人： Shizuo Sasaki , Satoshi Iguchi , Kenji Katoh
发明人： Shizuo Sasaki , Satoshi Iguchi , Kenji Katoh
IPC分类号： F02B31/02 , B01D53/94 , F01N3/08 , F01N3/18 , F01N3/24 , F02B1/12 , F02B3/06 , F02B31/08 , F02D13/02 , F02D21/08 , F02D23/02 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/30 , F02D41/38 , F02D41/40 , F02D43/00 , F02M25/07 , F02M45/00 , F02M47/00 , F02M57/02 , F01N3/20 , F02M25/06
CPC分类号： F02M57/025 , B01D53/9481 , B01D53/9495 , F02B31/085 , F02D21/08 , F02D41/0275 , F02D41/3035 , F02D41/3076 , F02D41/3827 , F02D41/402 , F01N3/0842 , F02B1/12 , F02B2275/14 , F02B3/06 , F02D2041/0022 , F02D2250/32 , F02D41/3047 , F02M26/54 , Y02T10/123 , Y02T10/128 , Y02T10/146 , Y02T10/44
摘要： In the exhaust gas purification device of the present invention, a NO.sub.x absorbent is disposed in the exhaust gas passage of a diesel engine. At the time when NO.sub.x should be released from the NO.sub.x absorbent, a control circuit of the engine reduces the excess air ratio of the engine, and switches the combustion mode of the engine from the normal diesel combustion, in which diffusive combustion is dominant in the combustion chamber of the engine, to the combustion mode in which pre-mixture fuel combustion is dominant. By doing this, it is possible, even in a diesel engine, to reduce the excess air ratio in combustion to thereby make the air-fuel ratio of the exhaust gas lower than or equal to the stoichiometric. Thus, the regeneration of the NO.sub.x absorbent can be performed even when it is applied to a diesel engine.
摘要翻译：在本发明的排气净化装置中，在柴油发动机的排气通路内配置有NOx吸收剂。当NOx从NOx吸收剂释放时，发动机的控制电路减少了发动机的过量空气比，并且将发动机的燃烧模式从正常的柴油燃烧中转换，其中扩散燃烧主要在发动机的燃烧室，以混合燃料燃烧为主的燃烧模式。通过这样做，即使在柴油发动机中也可以减少燃烧中的过量空气比，从而使排气的空燃比低于或等于理论空燃比。因此，即使将其应用于柴油发动机，也能够进行NOx吸收剂的再生。

20. 发明申请

US20100294252A1 EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于内燃机的排气控制装置
公开(公告)号：US20100294252A1
公开(公告)日：2010-11-25
申请号：US12864367
申请日：2009-01-15
申请人： Kenji Katoh , Susumu Kojima
发明人： Kenji Katoh , Susumu Kojima
IPC分类号： F02M25/07 , F02B25/06
CPC分类号： F02M25/10 , F02D13/0261 , F02D41/006 , F02D41/0065 , F02M25/06 , F02M26/01 , F02M26/05 , F02M26/07 , F02M26/15 , F02M26/23 , F02M26/35 , F02M26/36 , F02M26/47 , F02M26/50 , Y02T10/121
摘要： An exhaust pipe is connected to an intake branch pipe downstream of a throttle valve by an EGR passage. An EGR control valve that controls an EGR gas amount is arranged in the EGR passage. An EGR catalyst is arranged in the EGR passage downstream of the EGR control valve. An ozone supply apparatus is provided which supplies ozone to oxidize and remove particulate matter. An ozone supply end of the ozone supply apparatus is connected to the EGR passage upstream of the EGR catalyst. If an EGR gas supply operation is being performed and an EGR catalyst temperature is within a set temperature range that is set beforehand, an ozone supply operation is performed. If the EGR gas supply operation is not being performed or the EGR catalyst temperature is outside of the set temperature range, the ozone supply operation is prohibited from being performed.
摘要翻译：排气管通过EGR通道与节流阀下游的进气分支管连接。控制EGR气体量的EGR控制阀配置在EGR通路内。 EGR催化剂设置在EGR控制阀下游的EGR通路中。提供臭氧供应装置，其提供臭氧以氧化和去除颗粒物质。臭氧供给装置的臭氧供给端连接到EGR催化剂上游的EGR通路。如果正在执行EGR气体供给操作并且EGR催化剂温度在预先设定的设定温度范围内，则执行臭氧供给操作。如果没有进行EGR气体供给动作或EGR催化剂温度超出设定温度范围，则禁止进行臭氧供给动作。

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