公开(公告)号：US09051859B2

公开(公告)日：2015-06-09

申请号：US13640802

申请日：2011-04-13

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

IPC: F01N3/20 ,  F01N3/035 ,  F01N3/025 ,  F01N3/08 ,  F01N9/00 ,  B01D53/30 ,  B01D53/94

CPC classification number: F01N3/035 ,  B01D53/30 ,  B01D53/9409 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9495 ,  F01N3/0253 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/2066 ,  F01N9/002 ,  F01N9/005 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/02 ,  F01N2610/03 ,  Y02C20/10 ,  Y02T10/24 ,  Y02T10/47

Abstract: An exhaust gas purification device 1 includes an exhaust gas processing device 30 provided in an exhaust passage 11 of an internal combustion engine 10, an in-exhaust pipe fuel injection device 24 provided on an upstream side of the exhaust gas processing device 30 to supply fuel to the exhaust gas processing device 30, a NOx sensor 13 provided on a downstream side of the exhaust gas processing device 30, and a control unit 40 that controls combustion in the internal combustion engine 10 based on operating state of the engine 10. To burn and remove PM trapped in the exhaust gas processing device 30, the control unit 40 causes the in-exhaust pipe fuel injection device 24 to supply the fuel to the exhaust gas processing device 30 and stores a detection value from the NOx sensor 13 as a NOx value at an outlet of the engine 10.

Abstract translation: 排气净化装置1包括设置在内燃机10的排气通路11中的废气处理装置30，设置在排气处理装置30的上游侧的排气管燃料喷射装置24，以供给燃料 排气处理装置30，设置在排气处理装置30的下游侧的NOx传感器13，以及基于发动机10的运转状态来控制内燃机10的燃烧的控制单元40.燃烧 并且除去捕集在废气处理装置30中的PM，控制部40使排气管路燃料喷射装置24向排气处理装置30供给燃料，并将来自NOx传感器13的检测值作为NOx 在发动机10的出口处的值。

公开(公告)号：US09032713B2

公开(公告)日：2015-05-19

申请号：US13993820

申请日：2011-12-07

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Tomohiro Korenaga

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Tomohiro Korenaga

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/36

CPC classification number: F01N3/36 ,  F01N2610/146 ,  F02D2200/0602 ,  Y02T10/20

Abstract: An exhaust-pipe injection system capable of accurately monitoring a lowered injection pressure generated in a fuel line due to exhaust pipe injection and appropriately perform feedback control for the exhaust injection amount. The exhaust-pipe injection system includes: an exhaust pipe injector that injects fuel to an exhaust pipe of an internal combustion engine; a supply pump that sends a fuel to the exhaust pipe injector via a fuel line; a pressure compensating device provided in the vicinity of the exhaust pipe injector of the fuel line; a fuel pressure sensor provided in the fuel line in an upstream side from the pressure compensating device; and an injection control device that adjusts an injection amount of the exhaust pipe injector based on a monitoring value of the fuel pressure sensor.

Abstract translation: 一种排气管喷射系统，其能够精确地监视由于排气管喷射而在燃料管线中产生的降低的喷射压力，并适当地执行排气喷射量的反馈控制。 排气管喷射系统包括：排气管喷射器，其将燃料喷射到内燃机的排气管; 供给泵，其通过燃料管路向排气管喷射器发送燃料; 设置在燃料管路的排气管喷射器附近的压力补偿装置; 燃料压力传感器，设置在来自所述压力补偿装置的上游侧的所述燃料管路中; 以及喷射控制装置，其基于燃料压力传感器的监视值来调节排气管喷射器的喷射量。

公开(公告)号：US08671661B2

公开(公告)日：2014-03-18

申请号：US12736676

申请日：2009-04-15

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

IPC: F01N3/00 ,  F01N3/10

CPC classification number: F02D41/0275 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2255/912 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N13/0097 ,  F01N2610/03 ,  F01N2900/1602 ,  F02D41/029 ,  F02D41/1447 ,  F02D41/1458 ,  F02D2200/0802 ,  Y02T10/47

Abstract: An exhaust gas purification method, and system. In order from an upstream side of an engine exhaust passage there are provided, a NOx occlusion-reduction catalyst, a hydrocarbon (“HC”) adsorbing member, and a catalyzed diesel particulate filter or oxidation catalyst. During NOx regeneration control, an air-fuel ratio of exhaust gas in terms of excess air factor is taken to be 0.8 to 1.1 when an index temperature representative of the HC-adsorbing member is a first judgment temperature or less, is taken to be 1.0 to 1.1 when the index temperature is between a first judgment temperature and a second judgment temperature, and is taken to be 0.8 to 1.1 when the index temperature is the second judgment temperature or above, causing an outflow of HC to the atmosphere to be reduced.

Abstract translation: 废气净化方法及系统。 从发动机排气通路的上游侧起，设置有NOx吸留还原催化剂，烃（“HC”）吸附部件和催化柴油微粒过滤器或氧化催化剂。 在NOx再生控制中，当表示HC吸附构件的指标温度为第一判定温度以下时，以过量空气系数计算排气的空燃比为0.8〜1.1 当指标温度处于第一判断温度和第二判断温度之间时，为1.1，当指标温度为第二判断温度以上时为0.8〜1.1，导致HC向大气中的流出减少。

公开(公告)号：US08561396B2

公开(公告)日：2013-10-22

申请号：US12736982

申请日：2009-06-05

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Akihide Oogushi ,  Hiroyuki Yuza

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Akihide Oogushi ,  Hiroyuki Yuza

IPC: F01N3/02

CPC classification number: F01N3/0814 ,  B01D53/9422 ,  B01D53/944 ,  B01D53/9445 ,  B01D2255/912 ,  F01N3/02 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/28 ,  F01N13/0097 ,  F01N13/14 ,  F01N2240/10 ,  Y02T10/22

Abstract: An exhaust gas purification apparatus including a first exhaust gas treatment member carrying an oxidation catalyst, a three-way catalyst, or a NOx storage reduction catalyst which is used for purifying exhaust gas from an internal combustion engine, a second exhaust gas treatment member having a hydrocarbon (“HC”) storing function disposed on the downstream side of the first exhaust gas treatment member, and a heat dissipating unit disposed between the first exhaust gas treatment member and the second exhaust gas treatment member. An upstream side of the heat dissipating unit is formed into a heat insulating structure, and a further upstream side thereof is formed into a heat retaining structure. Even when an internal combustion engine is accelerating, the exhaust gas flowing into the HC adsorption material can be cooled efficiently and HC can be adsorbed before the temperature of the three-way catalyst or the NOx purification catalyst rises to an HC light-off temperature.

Abstract translation: 一种排气净化装置，其具备承载氧化催化剂的第一废气处理部件，三元催化剂或用于净化来自内燃机的废气的NOx吸留还原催化剂，第二废气处理部件具有 设置在第一废气处理构件的下游侧的碳氢化合物（“HC”）储存功能，以及布置在第一废气处理构件和第二废气处理构件之间的散热单元。 散热单元的上游侧形成为隔热结构体，其上游侧形成为保温结构。 即使在内燃机加速的情况下，也可以在三元催化剂或NOx净化催化剂的温度上升到HC熄灭温度之前，有效地冷却流入HC吸附材料的废气，并且可以吸附HC。

公开(公告)号：US20130269427A1

公开(公告)日：2013-10-17

申请号：US13994356

申请日：2011-12-07

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

IPC: F01N11/00

CPC classification number: F01N11/002 ,  B01D46/0063 ,  B01D46/448 ,  B01D2279/30 ,  F01N3/0253 ,  F01N2550/05 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2900/0418 ,  F01N2900/06 ,  F01N2900/1404 ,  F01N2900/1821 ,  Y02T10/47

Abstract: A diesel particulate filter (“DPF”) system is provided with temperature sensors at an entrance side and an exit side of a diesel oxidation catalyst, an SV ratio determining device that determines an exhaust gas SV ratio by measuring flow rate of exhaust gas during the DPF forcible regeneration, and an injector diagnosing device including a heat-generation region determining unit to which detection values of the temperature sensors and a determination value of the SV ratio determining device are input to determine whether or not these values are within a theoretical heat-generation region, and an actual injection amount diagnosing unit that diagnoses a decrease amount in an actual injection amount of an exhaust pipe injector, when the detection values of the temperature sensors and the determination value of the SV ratio determining device are within the theoretical heat-generation region.

Abstract translation: 柴油机微粒过滤器（“DPF”）系统在柴油机氧化催化剂的入口侧和出口侧设置有温度传感器，SV比率确定装置，通过测量废气SV比率来确定废气SV比率 DPF强制再生，以及具有发热区域确定单元的喷射诊断装置，在该发热区域确定单元中输入温度传感器的检测值和SV比例确定装置的确定值，以确定这些值是否在理论上的热 - 以及当所述温度传感器的检测值和所述SV比判定装置的判定值在所述理论热交换器内的情况下，诊断排气管喷射器的实际喷射量的减少量的实际喷射量诊断部， 一代地区。

公开(公告)号：US20130025264A1

公开(公告)日：2013-01-31

申请号：US13640966

申请日：2011-04-13

Applicant: Daiji Nagaoka ,  Teruo Nakada

Inventor： Daiji Nagaoka ,  Teruo Nakada

IPC: F01N9/00 ,  F01N3/035 ,  F01N3/10

CPC classification number: F02D41/025 ,  B01D53/9409 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/208 ,  B01D2279/30 ,  F01N3/023 ,  F01N3/0253 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/2066 ,  F01N11/005 ,  F01N2240/04 ,  F01N2510/0684 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2900/1602 ,  F02D41/1447 ,  F02D41/405 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

Abstract: The exhaust gas purification device includes an exhaust gas post-processing device 30 provided in an exhaust passage 11 of an engine 10, an exhaust injection valve 22, a first catalyst 35, a second catalyst 36 for thermally decomposing fuel injected by the exhaust injection valve 22, an exhaust temperature estimation unit 41 for estimating an exhaust temperature, an engine injection control unit 42 for controlling fuel injection in the engine 10, and regeneration control units 43, 44 for controlling regeneration of the exhaust gas post-processing device 30. When an output value output by the exhaust gas temperature estimation unit 41 is equal to or lower than a threshold during regeneration by the regeneration control units 43, 44, the engine injection control unit 42 controls fuel injection in the engine by performing a multistage injection, which includes a post injection for supplying fuel to the first catalyst 35.

Abstract translation: 排气净化装置包括设置在发动机10的排气通路11中的排气后处理装置30，排气喷射阀22，第一催化剂35，第二催化剂36，其对由排气喷射阀 22，排气温度估计单元41，用于控制发动机10中的燃料喷射的发动机喷射控制单元42，以及用于控制废气后处理装置30的再生的再生控制单元43,44。 排气温度推定部41输出的输出值在再生控制部43,44的再生期间等于或低于阈值，发动机喷射控制部42通过进行多级喷射来控制发动机的燃料喷射， 包括用于向第一催化剂35供应燃料的后喷射。

公开(公告)号：US20110041479A1

公开(公告)日：2011-02-24

申请号：US12736676

申请日：2009-04-15

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Hiroyuki Yuza

IPC: F01N3/20 ,  F01N9/00

CPC classification number: F02D41/0275 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/202 ,  B01D2255/204 ,  B01D2255/206 ,  B01D2255/2092 ,  B01D2255/50 ,  B01D2255/91 ,  B01D2255/912 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N13/0097 ,  F01N2610/03 ,  F01N2900/1602 ,  F02D41/029 ,  F02D41/1447 ,  F02D41/1458 ,  F02D2200/0802 ,  Y02T10/47

Abstract: Disclosed is an exhaust gas purification method, and also disclosed is an exhaust gas purification system (1). The exhaust gas purification system (1) comprises, in order from the upstream side of an exhaust passage (11) of an internal combustion engine (10), a NOx occlusion-reduction catalyst (32) for purifying NOx contained in exhaust gas, an HC-adsorbing member (33) for adsorbing hydrocarbons contained in exhaust gas, and a catalyzed DPF (34) or oxidation catalyst for purifying PM contained in exhaust gas. During the implementation of NOx regeneration control for restoring the NOx occlusion capacity of the NOx occlusion-reduction catalyst (32) in this system, the air-fuel ratio of the exhaust gas in terms of excess air factor is taken to be 0.8 to 1.1 when an index temperature (Tc) serving as an index of the temperature of the HC-adsorbing member (33) is a first judgment temperature or less, is taken to be 1.0 to 1.1 when the index temperature (Tc) is between a first judgment temperature and a second judgment temperature, and is taken to be 0.8 to 1.1 when the index temperature (Tc) is a second judgment temperature or above. As a result, during the exhaust gas air-fuel ratio rich control for restoring the NOx occlusion capacity which is implemented during the purification of the NOx and PM contained in the exhaust gas by the NOx occlusion-reduction catalyst and the catalyst-supported DPF (34), the outflow of HC to the atmosphere is improved.

Abstract translation: 公开了一种废气净化方法，并且还公开了一种废气净化系统（1）。 废气净化系统（1）从内燃机（10）的排气通路（11）的上游侧依次包括用于净化废气中的NOx的NOx吸留还原催化剂（32）， 用于吸附废气中的烃的HC吸附部件（33），以及用于净化废气中所含的PM的催化DPF（34）或氧化催化剂。 在该系统中，为了恢复NOx吸留还原催化剂（32）的NOx吸留能力的NOx再生控制的实施，以过量空气系数计算排气的空燃比为0.8〜1.1，当 当指标温度（Tc）在第一判断温度（Tc）之间时，作为HC吸附部件（33）的温度指标的指标温度（Tc）为第一判断温度以下，为1.0〜1.1 和第二判定温度，当指标温度（Tc）为第二判定温度以上时，为0.8〜1.1。 其结果是，在通过NOx吸留还原催化剂和催化剂负载的DPF（NO x吸留还原催化剂）净化含有的NOx和PM的PM而实现的废气空燃比浓缩控制中， 34），HC向大气中的流出改善。

公开(公告)号：US20100319328A1

公开(公告)日：2010-12-23

申请号：US12867538

申请日：2009-02-17

Applicant: Daiji Nagaoka ,  Teruo Nakada ,  Akihide Oogushi ,  Hiroyuki Yuza

Inventor： Daiji Nagaoka ,  Teruo Nakada ,  Akihide Oogushi ,  Hiroyuki Yuza

IPC: F01N9/00

CPC classification number: F01N3/0253 ,  F01N3/035 ,  F01N3/36 ,  F01N9/002 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/1806 ,  Y02T10/47

Abstract: Provided is a fuel injection control device that affords a wider lower limit range of injection amount by a injector for cylinder outside injection, and that can respond to injection requirements over a wider injection amount range. A fuel injection control device includes: a injector 14 for cylinder outside injection that injects fuel into an exhaust passage 12 of an engine 1, in an amount corresponding to a duty ratio; and a control means 15 for controlling the injector 14 for cylinder outside injection, wherein the control means 15 changes an injector driving frequency upon determining the duty ratio, such that the frequency is lowered, stepwise or continuously, as the required injection amount decreases.

Abstract translation: 提供一种燃料喷射控制装置，其通过用于气缸外部喷射的喷射器提供更宽的喷射量的下限范围，并且可以在更宽的喷射量范围内响应喷射要求。 燃料喷射控制装置包括：用于气缸外部喷射的喷射器14，其以对应于占空比的量将燃料喷射到发动机1的排气通道12中; 以及用于控制用于气缸外部喷射的喷射器14的控制装置15，其中控制装置15在确定占空比时改变喷射器驱动频率，使得频率随着所需喷射量的减小而逐渐降低。

公开(公告)号：US20050144934A1

公开(公告)日：2005-07-07

申请号：US10508489

申请日：2003-03-28

Applicant: Tadao Nakatsuji ,  Jin Yokoyama ,  Teruo Nakada ,  Taiji Uekusa ,  Yutaka Uematsu ,  Tetsuya Fujita ,  Yousuke Tanaka ,  Kazuhiro Enoki ,  Hiromi Shibuya

Inventor： Tadao Nakatsuji ,  Jin Yokoyama ,  Teruo Nakada ,  Taiji Uekusa ,  Yutaka Uematsu ,  Tetsuya Fujita ,  Yousuke Tanaka ,  Kazuhiro Enoki ,  Hiromi Shibuya

IPC: F02D45/00 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N9/00 ,  F01N11/00 ,  F02D41/04 ,  B01J38/02 ,  B01D53/34 ,  B01J20/34 ,  F01N3/10 ,  B01D50/00 ,  F01N3/00

CPC classification number: F02D41/028 ,  F01N3/0885 ,  F01N3/20 ,  F01N9/00 ,  F01N11/00 ,  F01N2260/04 ,  F01N2560/026 ,  F01N2570/04 ,  F01N2570/14 ,  F02D41/1446 ,  F02D41/1463 ,  F02D2200/0818 ,  Y02A50/2344 ,  Y02T10/20 ,  Y02T10/47

Abstract: A NOx purging system using a direct reduction type NOx catalyst, wherein sulfur is purged while avoiding the occurrence of secondary sulfur poisoning, taking advantage of capability of recovery from deterioration caused by sulfur poisoning at exhaust gas temperature exhibited at normal operating zone, so that the influence of sulfur poisoning can be eliminated and NOx is efficiently purged; and a method of reactivating deteriorated catalyst therein. In particular, a NOx purging system (10) comprising exhaust gas passage (2) and, arranged therein, direct reduction type NOx catalyst (3), which NOx purging system (10) is fitted with first sulfur purge control means (222) for performing such first sulfur purge operation that when exhaust gas temperature (Tg) becomes higher than given set temperature (T1) during normal operation, not only is the oxygen concentration of exhaust gas decreased but also the exhaust temperature (Tg) is raised to not below sulfur purge temperature (Tr).

Abstract translation: 使用直接还原型NOx催化剂的NOx净化系统，其中利用在正常操作区域显示的废气温度下由硫中毒引起的劣化的回收能力，清除硫，同时避免二次硫中毒的发生， 可以消除硫中毒的影响，有效地清除NOx; 以及其中还原催化剂的方法。 具体地，包括排气通道（2）并且布置在其中的直接还原型NOx催化剂（3）的NOx净化系统（10），所述NOx净化系统（10）装配有第一硫清除控制装置（222），用于 执行这样的第一次硫吹扫操作，当正常操作期间废气温度（Tg）变得高于给定的设定温度（T1）时，不仅排气的氧浓度降低，而且排气温度（Tg）升高到不低于 硫吹扫温度（Tr）。

公开(公告)号：US6155226A

公开(公告)日：2000-12-05

申请号：US194336

申请日：1998-11-24

Applicant: Hisashi Ozawa ,  Teruo Nakada

Inventor： Hisashi Ozawa ,  Teruo Nakada

IPC: F01M11/00 ,  F02B77/11 ,  F02B77/13 ,  F02F7/00

CPC classification number: F02B77/13 ,  F01M11/0004 ,  F02B77/11 ,  F01M2011/0054 ,  F01M2011/0062 ,  F05C2225/02

Abstract: The present invention is applicable to an engine having a cylinder block and an oil pan connected with each other and has an object of improving sealing of the engine and easiness in assembling and manufacturing. In the invention, an oil pan (14) is suspended from a cylinder block (1) via connecting members (cylinder covers (12)) in a vibration-insulating manner, a member having a projection (44) is provided on one of confronted face portions of the cylinder block and oil pan, and a member having a recess (46) is provided on the other confronted face portion. When these members engaged with each other, sealing is established. These members are also slidable so that dimensional errors are tolerated. Thus, assembling is facilitated. The object of the invention is also attained when an elastic member (144) and a mounting member (plate (142)) are in turn adhered onto the oil pan (114), and the mounting member is secured on the cylinder block by tightening members (bolts (146)).

Abstract translation: PCT No.PCT / JP98 / 01406 Sec。 371日期：1998年11月24日 102（e）1998年11月24日PCT PCT 1998年3月27日PCT公布。 WO98 / 44253 PCT出版物 日期：1998年10月8日本发明可应用于具有彼此连接的气缸体和油底壳的发动机，其目的在于提高发动机的密封性和组装和制造的容易性。 在本发明中，通过连接构件（气缸盖（12））以隔振方式从油缸体（1）悬挂油盘（14），具有突起（44）的构件设置在面对的 气缸体和油盘的面部，以及具有凹部（46）的构件设置在另一面对面部。 当这些构件相互啮合时，就建立了密封。 这些构件也是可滑动的，从而允许尺寸误差。 因此，便于组装。 当弹性构件（144）和安装构件（板（142））依次粘附到油盘（114）上时，本发明的目的也是实现的，并且安装构件通过紧固构件固定在气缸体上 （螺栓（146））。