公开(公告)号：US09534552B2

公开(公告)日：2017-01-03

申请号：US14423713

申请日：2012-08-28

申请人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kenji Sakurai ,  Kohki Nakamura

发明人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kenji Sakurai ,  Kohki Nakamura

IPC分类号： F01N3/00 ,  F02D41/02 ,  F01N3/10 ,  F01N9/00 ,  F01N3/20 ,  F01N3/025 ,  F02D41/14

CPC分类号： F02D41/0295 ,  F01N3/0253 ,  F01N3/101 ,  F01N3/20 ,  F01N9/00 ,  F01N9/002 ,  F01N2430/06 ,  F01N2610/03 ,  F01N2610/105 ,  F01N2900/1811 ,  F02D41/0275 ,  F02D41/1475 ,  F02D2200/0806 ,  Y02T10/22 ,  Y02T10/47

摘要： A three-way catalyst (20) having an oxygen storage function and an exhaust purification catalyst (22) are arranged in the exhaust passage of an internal combustion engine. During medium-load operation of the engine the degree of lean of the air-fuel ratio in the combustion chamber (5) is increased so as to increase the oxygen storage amount of the three-way catalyst (20) to the maximum oxygen storage amount, and the air-fuel ratio in the combustion chamber (5) even after the oxygen storage amount of the three-way catalyst (20) has reached the maximum oxygen, storage amount is maintained at lean, after which the air-fuel ratio is returned to rich, and at this time, as the amount of poisoning of a noble metal catalyst when the air-fuel ratio in the combustion chamber (5) is rich increases, the amount of time for which the air-fuel ratio in the combustion chamber (5) is maintained at lean is increased.

摘要翻译： 具有储氧功能的三元催化剂（20）和排气净化催化剂（22）布置在内燃机的排气通道中。 在发动机的中负荷运转时，燃烧室（5）中的空燃比的倾斜度增加，以将三元催化剂（20）的储氧量增加到最大储氧量 ，即使在三元催化剂（20）的储氧量达到最大氧气之后，燃烧室（5）中的空燃比保持在稀薄，空燃比为 这时，当燃烧室（5）中的空燃比变浓时，贵金属催化剂的中毒量增加，燃烧时的空燃比的时间 维持在倾斜的腔室（5）增加。

公开(公告)号：US09517436B2

公开(公告)日：2016-12-13

申请号：US14130414

申请日：2012-09-10

申请人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue ,  Kohki Nakamura

发明人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue ,  Kohki Nakamura

IPC分类号： B01D53/94 ,  F01N3/021 ,  F01N3/08 ,  F01N3/025 ,  F01N3/20

CPC分类号： B01D53/9431 ,  F01N3/021 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2066 ,  F01N2610/03 ,  F01N2610/144 ,  F01N2610/1453 ,  F01N2900/1808

摘要： An internal combustion engine wherein an exhaust purification catalyst and hydrocarbon feed valve are arranged in an engine exhaust passage and wherein the NOX which is contained in the exhaust gas is removed by injection of hydrocarbons from the hydrocarbon feed valve by a predetermined period. Hydrocarbons are injected from the hydrocarbon feed valve toward the upstream side of the engine exhaust passage. When hydrocarbons are injected from the hydrocarbon feed valve by a predetermined period, the injection pressure of the hydrocarbons is made to gradually fall from injection start to injection end in the injection time period of each injection.

摘要翻译： 一种内燃机，其中排气净化催化剂和烃供给阀布置在发动机排气通道中，并且其中通过从烃进料阀注入烃预定时间段来排除废气中所含的NO x。 碳氢化合物从烃进料阀向发动机排气通道的上游侧注入。 当从烃进料阀注入烃类预定时间时，在每次注射的喷射时间段内使烃的喷射压力从喷射开始到喷射结束逐渐下降。

公开(公告)号：US09108154B2

公开(公告)日：2015-08-18

申请号：US13264594

申请日：2010-12-20

申请人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

发明人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

IPC分类号： F01N3/10 ,  F01N3/00 ,  F01N9/00 ,  B01D53/94 ,  F01N3/20 ,  F01N3/08 ,  F01N13/00

CPC分类号： B01D53/9431 ,  B01D53/9495 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/208 ,  F01N13/009 ,  F01N2610/03 ,  F01N2900/0422 ,  F01N2900/0601 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1808 ,  F01N2900/1812 ,  Y02T10/24

摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. At the time of engine operation, the amplitude of change of the concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to become within a predetermined range of amplitude by control of at least one of the injection time and injection pressure of hydrocarbons from the hydrocarbon feed valve (15). In this case, when only the injection time of hydrocarbons is controlled, the injection time of hydrocarbons under the same engine operating state is made longer the higher the temperature of the exhaust purification catalyst (13).

摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 在发动机运转时，流入排气净化催化剂（13）的碳氢化合物浓度的变化幅度通过控制喷射时间和喷射压力中的至少一个而变为预定的振幅范围 来自烃进料阀（15）的烃。 在这种情况下，当仅控制烃的喷射时间时，使排气净化催化剂（13）的温度越高，在相同的发动机运转状态下的烃的喷射时间越长。

公开(公告)号：US09108153B2

公开(公告)日：2015-08-18

申请号：US13257789

申请日：2010-07-28

申请人： Hiromasa Nishioka ,  Kohei Yoshida ,  Yoshihisa Tsukamoto ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

发明人： Hiromasa Nishioka ,  Kohei Yoshida ,  Yoshihisa Tsukamoto ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

IPC分类号： F01N3/10 ,  B01D53/94 ,  F01N3/08 ,  F01N3/28

CPC分类号： B01D53/9422 ,  B01D53/9409 ,  B01D2251/208 ,  B01D2255/102 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2255/912 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/28 ,  F01N2240/30 ,  F01N2430/06 ,  F01N2510/0684

摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust treatment catalyst (13) are arranged. On a substrate (45) of the exhaust treatment catalyst (13), a coat layer comprised of at least two layers of a top coat layer (46) and a bottom coat layer (47) is formed. The top coat layer (46) is comprised of an exhaust purification catalyst for reacting NOx contained in exhaust gas and reformed hydrocarbons, while the bottom coat layer (47) is comprised of an NOx absorption catalyst. The concentration of hydrocarbons which flows into the exhaust treatment catalyst (13) is made to vibrate within a predetermined range of amplitude and within a predetermined range of period. Due to this, NOx contained in exhaust gas and NOx desorbed from the NOx absorption catalyst (47) are reduced in the exhaust purification catalyst (46).

摘要翻译： 在内燃机中，配置发动机排气通路内部的烃供给阀（15）和排气处理催化剂（13）。 在排气处理催化剂（13）的基板（45）上形成由至少两层顶涂层（46）和底涂层（47）构成的涂层。 顶涂层（46）由用于使废气中所含的NOx和重整烃反应的排气净化催化剂构成，而底涂层（47）由NOx吸收催化剂构成。 使流入排气处理催化剂（13）的烃的浓度在预定的振幅范围内振动并且在预定的周期范围内。 由此，在排气净化催化剂（46）中减少了废气中所含的NOx和从NOx吸收催化剂（47）脱附的NOx。

公开(公告)号：US20140030160A1

公开(公告)日：2014-01-30

申请号：US13375674

申请日：2011-04-15

申请人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

发明人： Mikio Inoue ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

IPC分类号： B01D53/94

CPC分类号： B01D53/9431 ,  F01N3/035 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/206 ,  F01N2240/30 ,  F01N2510/06 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2900/1602 ,  F01N2900/1614 ,  Y02A50/2344

摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. At the time of engine operation, the amplitude of change of the concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to become within a predetermined range of amplitude by control of the injection amount of hydrocarbons from the hydrocarbon feed valve (15), the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) is made to vibrate by a predetermined range of period by control of the injection period of hydrocarbons from the hydrocarbon feed valve (15), and thereby the NOx contained in the exhaust gas and the NOx stored in the exhaust purification catalyst (13) are reduced.

摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 在发动机运转时，流入排气净化催化剂（13）的碳氢化合物浓度的变化幅度通过控制来自碳氢化合物供给阀的烃的喷射量而变为预定的振幅范围（ 15），通过控制来自烃供给阀（15）的烃的喷射时间，使流入排气净化催化剂（13）的碳氢化合物的浓度振动规定的期间，由此，含有 废气和存储在排气净化催化剂（13）中的NOx减少。

公开(公告)号：US20130323131A1

公开(公告)日：2013-12-05

申请号：US13264230

申请日：2011-02-10

申请人： Yuki Bisaiji

发明人： Yuki Bisaiji

IPC分类号： F01N3/08

CPC分类号： F01N3/0892 ,  F01N3/0842 ,  F01N9/00 ,  F01N13/009 ,  F01N2240/30 ,  F01N2430/06 ,  F01N2610/03 ,  F02D41/025 ,  F02D41/0275 ,  F02D41/1446 ,  F02D41/146 ,  Y02T10/26 ,  Y02T10/47

摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (17), exhaust purification catalyst (13), and intermediate NOx adsorption catalyst (15) are arranged. The intermediate NOx adsorption catalyst (15) adsorbs nitrogen-containing intermediate and NOx which are exhausted from the exhaust purification catalyst (13). To make the nitrogen-containing intermediate or NOx which is adsorbed at the intermediate NOx adsorption catalyst (15) desorb from it, the concentration of hydrocarbons flowing into the exhaust purification catalyst (13) is made to vibrate within a predetermined range of amplitude of 200 ppm or more and within a predetermined range of period of 5 seconds or less, whereby NOx which is contained in exhaust gas is removed at the exhaust purification catalyst (13) while the heat of oxidation reaction of the hydrocarbons is used to make the intermediate NOx adsorption catalyst (15) rise in temperature.

摘要翻译： 在内燃机中，配置有发动机排气通路，烃供给阀（17），排气净化催化剂（13）和中间体NOx吸附催化剂（15）。 中间NOx吸附催化剂（15）吸附从排气净化催化剂（13）排出的含氮中间体和NOx。 为了使中间体NOx吸附催化剂（15）吸附的含氮中间体或NOx从其脱离，使流入排气净化催化剂（13）的碳氢化合物的浓度在振幅为200的预定范围内振动 ppm以上且在5秒以下的预定范围内，由此排气净化催化剂（13）除去废气中所含的NOx，同时使用烃的氧化反应热使中间体NOx 吸附催化剂（15）升温。

公开(公告)号：US20130291522A1

公开(公告)日：2013-11-07

申请号：US13259712

申请日：2011-01-17

申请人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue

发明人： Yuki Bisaiji ,  Kohei Yoshida ,  Mikio Inoue

IPC分类号： F01N3/10

CPC分类号： F01N3/10 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/2073 ,  F01N3/36 ,  F01N2430/06 ,  F01N2610/03 ,  F02D41/028

摘要： In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) an exhaust purification catalyst (13), and a particulate filter (14) are arranged. If the hydrocarbon feed valve (15) feeds hydrocarbons by a period of within 5 seconds, a reducing intermediate is produced inside the exhaust purification catalyst (13). This reducing intermediate is used for NOx purification processing. When the stored SOx should be released from the exhaust purification catalyst (13), the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst (13) is made rich, the reducing intermediate built up on the exhaust purification catalyst (13) is made to be desorbed in the form of ammonia, and the desorbed ammonia is used to make the exhaust purification catalyst (13) release the stored SOx.

摘要翻译： 在内燃机中，在发动机排气通路内设置有碳氢化合物供给阀（15），排气净化催化剂（13）和微粒过滤器（14）。 如果烃进料阀（15）在5秒钟内进料烃，则在排气净化催化剂（13）内产生还原中间体。 该还原中间体用于NOx净化处理。 当从废气净化催化剂（13）中释放储存的SO x时，流入排气净化催化剂（13）的废气的空燃比变浓，在废气净化催化剂（13） ）以氨的形式解吸，并且使用解吸的氨来使排气净化催化剂（13）释放储存的SO x。

公开(公告)号：US20130243658A1

公开(公告)日：2013-09-19

申请号：US13259574

申请日：2010-12-06

申请人： Yoshihisa Tsukamoto ,  Hiromasa Nishioka ,  Kohei Yoshida ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

发明人： Yoshihisa Tsukamoto ,  Hiromasa Nishioka ,  Kohei Yoshida ,  Yuki Bisaiji ,  Junichi Matsuo ,  Takamitsu Asanuma

IPC分类号： B01D53/94

CPC分类号： B01D53/9431 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/9022 ,  B01D2255/91 ,  B01D2258/012 ,  F01N3/021 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N13/009 ,  F01N2240/30 ,  F01N2510/0684 ,  F01N2610/03 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1626 ,  Y02T10/24 ,  Y02T10/47

摘要： In an internal combustion engine, inside of an engine exhaust passage, an NOx adsorption part and an NOx purification part are arranged. The NOx purification part has the property of reducing NOx which is contained in exhaust gas if the concentration of hydrocarbons is made to vibrate by within a predetermined range of amplitude and within a predetermined range of period. When NOx is to be desorbed from the NOx adsorption part, the current NOx which is contained in the exhaust gas and the NOx which is desorbed from the NOx adsorption part are reduced by making the concentration of hydrocarbons of the NOx purification part vibrate by the amplitude and period which are set for the current engine operating state, at least of which (ΔT·k) has been corrected so that the amount of hydrocarbons becomes greater.

摘要翻译： 在内燃机中，配置发动机排气通路内部的NOx吸附部和NOx净化部。 如果使碳氢化合物的浓度在预定的振幅范围内并在预定的周期范围内振动，则NOx净化部具有还原废气中所含的NOx的性质。 当NOx从NOx吸附部分脱附时，通过使NOx净化部的烃浓度振动振幅来减少废气中所含的电流NOx和从NOx吸附部脱离的NOx 对于目前的发动机运转状态设定的期间，至少其中（DeltaT·k）已被校正，使得烃的量变大。

公开(公告)号：US20130183203A1

公开(公告)日：2013-07-18

申请号：US13260986

申请日：2010-10-04

申请人： Masao Watanabe ,  Koutarou Hayashi ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

发明人： Masao Watanabe ,  Koutarou Hayashi ,  Kohei Yoshida ,  Yuki Bisaiji ,  Kazuhiro Umemoto

IPC分类号： B01D53/94

CPC分类号： B01D53/9431 ,  B01D53/9422 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/20715 ,  B01D2255/2092 ,  B01D2255/91 ,  B01J23/42 ,  B01J23/464 ,  B01J23/58 ,  B01J23/63 ,  B01J35/0006 ,  B01J35/04 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/36 ,  F01N2240/30 ,  F01N2610/03

摘要： In an internal combustion engine, inside of an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The exhaust purification catalyst (13) is comprised of a mixture of a first catalyst in which platinum (51) and a basic layer (52) are carried on alumina (50) and a second catalyst in which rhodium (56) is carried on zirconia (55). The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).

摘要翻译： 在内燃机中，配置有发动机排气通路内部的烃供给阀（15）和排气净化催化剂（13）。 废气净化催化剂（13）由在氧化铝（50）上载有铂（51）和碱性层（52）的第一催化剂和其中铑（56）载于氧化锆上的第二催化剂的混合物组成 （55）。 流入排气净化催化剂（13）的碳氢化合物的浓度在200ppm以上的振幅的预定范围内振动，并且在5秒以下的预定范围内，由此含有 在排气净化催化剂（13）中的排气减少。

公开(公告)号：US20130047589A1

公开(公告)日：2013-02-28

申请号：US13502210

申请日：2011-08-25

申请人： Yuki Bisaiji

发明人： Yuki Bisaiji

IPC分类号： F01N3/10

CPC分类号： F02D41/0275 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N11/007 ,  F01N2550/03 ,  F01N2550/05 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2900/1402 ,  F02D41/1441 ,  F02D41/1456 ,  Y02T10/47

摘要： In an internal combustion engine, an upstream side air-fuel ratio sensor (23), hydrocarbon feed valve (15), exhaust purification catalyst (13), and the downstream side air-fuel ratio sensor (24) are arranged in an engine exhaust passage in that order from the upstream side. If hydrocarbons are fed from the hydrocarbon feed valve (15), the air-fuel ratio which is detected by the downstream side air-fuel ratio sensor (24) changes to the rich side from the reference air-fuel ratio which is detected when hydrocarbons are not fed from the hydrocarbon feed valve (15). The amount of hydrocarbons which are fed from the hydrocarbon feed valve (15) and which slip through the exhaust purification catalyst (13) is detected from the air-fuel ratio difference between the air-fuel ratio detected by the upstream side air-fuel ratio sensor (23) and the reference air-fuel ratio detected by the downstream side air-fuel ratio sensor (24).

摘要翻译： 在内燃机中，上游侧空燃比传感器（23），烃供给阀（15），排气净化催化剂（13）和下游侧空燃比传感器（24）配置在发动机排气 从上游侧依次通过。 如果从烃供给阀15供给碳氢化合物，则由下游侧空燃比传感器24检测出的空燃比从碳氢化合物中检出的基准空燃比变为浓侧 不从烃供给阀（15）供给。 根据由上游侧空燃比检测到的空燃比的空燃比差来检测从烃供给阀（15）供给的滑动通过排气净化催化剂（13）的烃的量， 传感器（23）和由下游侧空燃比传感器（24）检测出的基准空燃比。