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31. 发明专利

JP2006083751A Exhaust emission control device 审中-公开
标题翻译：排气排放控制装置
公开(公告)号：JP2006083751A
公开(公告)日：2006-03-30
申请号：JP2004268634
申请日：2004-09-15
申请人： Denso Corp , 株式会社デンソー
发明人： ARAKAWA MIYAO
IPC分类号： F01N3/02 , B01D51/02 , B03C3/09 , B03C3/40 , B03C3/41 , B03C3/47
摘要： PROBLEM TO BE SOLVED: To provide a form of a grounded electrode (a metallic mesh 5) capable of obtaining desired coagulation effect without worsening pressure loss. SOLUTION: A coagulation device 1 has a housing 3 connected with an exhaust pipe 2 to form a part of an exhaust passage, a discharge electrode 4 attached to the housing 3, and the grounded electrode arranged on the downstream side in the direction of flow of exhaust gas more than the discharge electrode 4 to apply high voltage between the discharge electrode 4 and the grounded electrode to generate corona discharge and coagulate PM in exhaust gas by static electricity. The grounded electrode is formed by the circular metallic mesh 5 having many ventilation holes. Rate of hole area of the ventilation hole of the metallic mesh 5 is set to 30 to 90%, and individual ventilation hole has such size that does not prevent groups of coagulated and bulky PMs from passing through. To explain concretely, when diameter of inscribed circle inscribed in the ventilation hole is defined as scale division opening, this scale division opening is set to 0.5 to 2 mm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够获得期望的凝结效果而不会使压力损失恶化的接地电极（金属网5）的形式。解决方案：凝结装置1具有与排气管2连接以形成排气通道的一部分的壳体3，附接到壳体3的放电电极4和设置在壳体3的下游侧的接地电极排气的流量大于放电电极4，以在放电电极4和接地电极之间施加高电压，以产生电晕放电并通过静电凝结废气中的PM。接地电极由具有多个通风孔的圆形金属网5形成。金属网5的通气孔的孔面积率设定为30〜90％，单个通气孔的尺寸不会妨碍凝聚体积大的PM的通过。为了具体说明，将通气孔中内接圆的直径定义为刻度开度时，刻度开口设定为0.5〜2mm。版权所有（C）2006，JPO＆NCIPI

32. 发明专利

JP2006063872A High voltage wiring connection structure of exhaust emission control device 有权
标题翻译：排气控制装置的高压接线连接结构
公开(公告)号：JP2006063872A
公开(公告)日：2006-03-09
申请号：JP2004246784
申请日：2004-08-26
申请人： Denso Corp , 株式会社デンソー
发明人： ARAKAWA MIYAO
IPC分类号： F01N3/08 , F01N13/00 , F01N99/00
摘要： PROBLEM TO BE SOLVED: To prevent high voltage wiring from being removed due to displacement, etc. caused by vibration of an exhaust pipe when an exhaust emission control device is connected to a high voltage power source, and to prevent heat from being transferred to a covered part made of synthetic resin of the high voltage wiring due to high temperature.
SOLUTION: To connect a corona discharge electrode 2 of the exhaust emission control device 1 to the high voltage wiring 4, an electrode side terminal 22 is electrically connected to the high voltage wiring 4 by a coil spring 7 with flexible structure, and the corona discharge electrode 2 is connected to a connection end part of the high voltage wiring 4 with water resistance by a metal bellows 8, having the flexible structure, for covering its periphery. A cylindrical insulating member 9 made of rubber for electrically disconnecting the coil spring 7 and the bellows 8 without impairing flexibility thereof is interposed between the coil spring 7 and the bellows 8.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止当废气排放控制装置连接到高压电源时排气管的振动引起的由于位移等导致的高压布线被除去，并且防止热量转移到由高温引起的高压布线的合成树脂制成的覆盖部分。
解决方案：为了将废气排放控制装置1的电晕放电电极2与高电压配线4连接，电极侧端子22通过具有柔性结构的螺旋弹簧7与高压配线4电连接，电晕放电电极2通过具有柔性结构的金属波纹管8以耐水性连接到高压布线4的连接端部，用于覆盖其周边。在螺旋弹簧7和波纹管8之间插入有由橡胶制成的圆柱形绝缘构件9，该圆柱形绝缘构件9由螺旋弹簧7和波纹管8电气断开而不损害其挠性。（C）2006，JPO＆NCIPI

33. 发明专利

JP2006046281A Exhaust fine particulate detection device of internal combustion engine 有权
标题翻译：内燃机排气精细颗粒检测装置
公开(公告)号：JP2006046281A
公开(公告)日：2006-02-16
申请号：JP2004231981
申请日：2004-08-09
申请人： Denso Corp , 株式会社デンソー
发明人： ARAKAWA MIYAO
IPC分类号： F01N9/00 , F01N3/02 , F02D35/00 , F02D45/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To detect conductive exhaust fine particulate in exhaust gas with high precision. SOLUTION: A pair of electrodes 3, 4 are arranged in an exhaust passage 2a. A current detecting means 53 detects a current flowing between the electrodes 3, 4 when electrical discharge is generated in a space between the electrodes 3, 4 by applying high voltage between the electrodes 3, 4. The amount of the conductive exhaust fine particulate in the exhaust gas is measured based on the electric conductivity of the space between the electrodes 3, 4 which is found from the detected current. Since the exhaust fine particulate is electrostatically charged by the discharged electron, it is unnecessary to make the exhaust fine particulate contact with the electrode 3 so that it is possible to measure the amount of the exhaust fine particulate with high precision. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：以高精度检测废气中的导电排气微粒。解决方案：一对电极3,4布置在排气通道2a中。电流检测装置53通过在电极3,4之间施加高电压来检测在电极3,4之间的空间中产生放电时在电极3,4之间流动的电流。导电排出细颗粒的量基于从检测到的电流发现的电极3,4之间的空间的电导率来测量废气。由于排出的细颗粒被排出的电子静电充电，因此不需要使排气细颗粒与电极3接触，从而可以高精度地测量排气微粒的量。版权所有（C）2006，JPO＆NCIPI

34. 发明专利

JP2006029267A Exhaust emission control device 审中-公开
标题翻译：排气排放控制装置
公开(公告)号：JP2006029267A
公开(公告)日：2006-02-02
申请号：JP2004211845
申请日：2004-07-20
申请人： Denso Corp , 株式会社デンソー
发明人： ARAKAWA MIYAO
IPC分类号： F01N3/02 , B01D46/00 , B01D51/00 , B01D51/02
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device formed that ash omission ease and PM collection performance are compatible. SOLUTION: An exhaust passage 3 of a diesel engine 2 is provided with a PM coagulating device 4 to coagulate PM contained in exhaust gas by utilizing corona discharge; and a PM collecting device 5 situated on the side situated downstream of the PM coagulating device 4. The PM collecting device 5 is, for example, a honeycomb structure formed of porous ceramics, and coagulated PM contained in exhaust gas is adhered to a bulkhead for collection when exhaust gas passes through a number of pores formed in the bulkhead. The size (a pore diameter) of the pores formed in the bulkhead has a size of average 30-300 μm. The PM collecting device 5 collects a lump of coagulated PM coagulated by the PM coagulating device 4 and increased in the particle size, and therefore even if the pore diameter is increased, the collection rate of PM is not lowered widely, and a PM collection rate equivalent to that of a mass production article is securable with a pore diameter of average 300 μm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种排除废气排放控制装置，其形成为使废渣容易和PM收集性能相容。解决方案：柴油发动机2的排气通道3设置有PM凝结装置4，通过利用电晕放电使包含在废气中的PM凝结; 以及位于PM凝结装置4的下游侧的PM收集装置5.PM收集装置5例如由多孔陶瓷形成的蜂窝结构体，废气中所含的凝固PM粘附到隔板当废气通过形成在隔板中的多个孔时的收集。在隔板中形成的孔的尺寸（孔径）的平均尺寸为30-300μm。 PM收集装置5收集由PM凝结装置4凝结的一团凝结PM，粒径增大，因此即使孔径增大，PM的收集率也不会大幅下降，PM收集率相当于大规模生产制品的孔径直径平均为300微米。版权所有（C）2006，JPO＆NCIPI

35. 发明专利

JP2003279060A Heat-exchange purifying device 审中-公开
标题翻译：热交换净化装置
公开(公告)号：JP2003279060A
公开(公告)日：2003-10-02
申请号：JP2002078175
申请日：2002-03-20
申请人： Denso Corp , 株式会社デンソー
发明人： ITO TOSHIHIKO , ARAKAWA MIYAO
IPC分类号： F02M25/07 , B01D53/86 , F24F1/00 , F24F7/00
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide a heat-exchange purifying device to purify a gas with a catalyst having a lower temperature than the activation temperature and cool it by a heat-exchanger. SOLUTION: An EGR cooler 10 has an inlet housing 12, an outlet housing 14, a positive electrode 20, and the heat-exchanger 30, wherein the positive electrode 20 is held pinchedly by the inlet housing 12 and the outlet housing 14, while the positive electrode 20 has an electrode frame 22 in square shape, etc., formed from ceramic and an electrode body 24 in the form of wire meshing attached to the electrode frame 22. The EGR gas passes through the mesh of the electrode body 24. The electrode body 24 of the positive electrode 20 constitutes the anode of a plasma electrode, while the heat-exchanger 30 constitutes the cathode of the plasma electrode. High-voltage pulses are impressed between the electrode body 24 and the heat-exchanger 30, and a plasma discharge is generated. A porous ceramic of zeolite, alumina, etc., is coated on the surfaces of fins 32 and cooling pipes 34 of the heat-exchanger 30, and then a catalyst of noble metal is carried on the surfaces. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用具有比活化温度低的催化剂净化气体的热交换净化装置，并通过热交换器进行冷却。解决方案：EGR冷却器10具有入口壳体12，出口壳体14，正极20和热交换器30，其中正极20被入口壳体12和出口壳体14夹紧地夹持而正极20具有由陶瓷形成的正方形形状的电极框架22和以与电极框架22相连的丝网形式的电极体24. EGR气体通过电极体的网状物正极20的电极体24构成等离子体电极的阳极，而热交换器30构成等离子体电极的阴极。在电极体24和热交换器30之间施加高电压脉冲，产生等离子体放电。在热交换器30的散热片32和冷却管34的表面上涂布沸石，氧化铝等的多孔陶瓷，然后在表面上载有贵金属的催化剂。版权所有（C）2004，JPO

36. 发明专利

JP2002129946A EXHAUST EMISSION PURIFYING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002129946A
公开(公告)日：2002-05-09
申请号：JP2000319311
申请日：2000-10-19
申请人： DENSO CORP
发明人： ARAKAWA MIYAO
IPC分类号： F01N3/08
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission purifying device for internal combustion engine capable of effectively purifying exhaust gas by suppressing an excessive electric discharge due to reduction in an impedance in a discharging space. SOLUTION: A target value of value of current passed to a discharge electrode 21 is stored in advance in the current supply quantity memory unit inside an ECU 13 to execute an appropriate discharge to cope with a driving state of an engine 30 even when impedance in discharge space is reduced. When the actually measured value of the value of current passed to the discharge electrode 21 received from a current probe 19 is larger than the target value, a current limit circuit part 18 limits the value of current passed to the discharge electrode 21 on the basis of an instruction from the ECU 13. On the other hand, when the actually measured value of the value of current passed to the discharge electrode 21 is less than the target value, a DC/DC converter 14 raises the value of current passed by raising the voltage to be applied to the discharge electrode 21 received from the current probe 19 on the basis of instructions from the ECU 13.

37. 发明专利

JP2001098932A EXHAUST EMISSION CONROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2001098932A
公开(公告)日：2001-04-10
申请号：JP28226099
申请日：1999-10-04
申请人： DENSO CORP
发明人： ARAKAWA MIYAO
IPC分类号： B01D53/32 , F01N3/08
摘要： PROBLEM TO BE SOLVED: To stably carry out discharge control without influence of a temperature of a section where discharge is generated and deposition of dirt such as soot, in an exhaust emission control device for accelerating exhaust emission control by the discharge. SOLUTION: A current probe 24 for detecting discharge current on the ground side of a secondary winding of a transformer 23 of an inverter circuit 19 for feeding electric power to an exhaust emission control device 12. After a filter circuit 25 processes a discharge current detection signal output from the current probe 24 and a low frequency capacity component and a high frequency noise component are taken out from the signal, the signal is input to a PWM circuit 26. The PWM circuit 26 generates a discharge detection pulse every time the filtered discharge current detection signal exceeds a threshold value, detects generation frequency of discharge from generation frequency of the discharge detection pulse, and changes output voltage of a DC/DC converter 18 depending on the generation frequency of discharge. Thereby, output voltage of the inverter circuit 19 is changed depending on the generation frequency of discharge, and electric power fed to discharge electrodes 13, 14 is changed.

38. 发明专利

JP2001098931A EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2001098931A
公开(公告)日：2001-04-10
申请号：JP27556899
申请日：1999-09-29
申请人： DENSO CORP
发明人： ARAKAWA MIYAO
IPC分类号： B01D53/56 , B01D53/32 , B01D53/74 , B01D53/94 , B01J19/08 , F01N3/08
摘要： PROBLEM TO BE SOLVED: To accurately detect abnormality of a discharge state caused by deposition of soot or dew condensation on the surfaces of insulator flow passages. SOLUTION: A plurality of fluid passage structures 12 made of insulators having a plurality of insulator flow passages 13 are layered, and insulation resistance detecting terminals 21, 22 for detecting resistance values on upstream end surfaces of the insulating flow passages 13. As the deposit of soot and dew condensation is increased, the resistance values on the surfaces of the insulator flow passages 13 are lowered to deteriorate a discharge state. With focusing on the fact, the resistance values (resistance values on the upstream end surfaces of the insulating flow passages 13) between the insulation resistance detecting terminals 21, 22 are detected in a period capable of stopping the discharge before starting an engine and/or when the engine is in operation. The discharge state is determined based on the resistance values. When the engine is in operation and discharge abnormality caused by the deposit of soot is determined, an air-fuel ratio of exhaust gas is controlled to be temporarlly rich to burn off the soot deposited to the insulator flow passages 13.

39. 发明专利

JP2011064191A Plasma ignition device, and method for controlling the same 审中-公开
标题翻译：等离子体点火装置及其控制方法
公开(公告)号：JP2011064191A
公开(公告)日：2011-03-31
申请号：JP2009283697
申请日：2009-12-15
申请人： Denso Corp , 株式会社デンソー
发明人： KATO HIDEYUKI , YOSHINAGA TORU , ARAKAWA MIYAO , KAJITA YUJI
IPC分类号： F02P3/01 , F02P13/00
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable plasma ignition device for surely igniting a hard-to-ignite combustion engine while improving the probability of igniting high-fuel-concentration portions of extremely lean mixture having a high air-fuel ratio by enabling ignition sources to be produced several times at selective ignition timings.
SOLUTION: The plasma ignition device includes an electronic control device ECU for issuing a plurality of ignition signals IGt
n and a charge/discharge selecting signal T
n G, if necessary, depending on the operating conditions of the internal combustion engine, a multiple trigger discharge means 20 including a driving voltage regulating means 21 for converting an ignition signal IGt
n into driving voltage and at least one high voltage generating means 22 to be driven in accordance with the ignition signal IGt
n , and a multiple plasma current supply means 30 including a plasma current accumulating means 32 for accumulating at least one plasma current and at least one charge/discharge selecting means 31 for selecting the charge/discharge of the plasma current accumulating means 32 in accordance with the charge/discharge selecting signal T
n G.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种高可靠性的等离子体点火装置，用于可靠地点燃难燃点燃的内燃机，同时提高点燃具有高空燃比的极浓混合物的高燃料浓度部分的可能性通过在选择性点火时间使点火源多次产生。解决方案：等离子体点火装置包括用于发出多个点火信号IGt n 的充电/放电选择信号T n G的电子控制装置ECU，如果根据内燃机的工作条件，需要多个触发放电装置20，该多个触发放电装置20包括用于将点火信号IGt n 转换为驱动电压的驱动电压调节装置21和至少一个产生高电压的电压根据点火信号IGt n 驱动的装置22以及包括用于累积至少一个等离子体电流和至少一个充电/放电的等离子体电流累积装置32的多等离子体电流供给装置30 选择装置31，用于根据充电/放电选择信号T G选择等离子体电流累积装置32的充电/放电。版权所有（C）2011，JPO＆INPIT

40. 发明专利

JP2010096057A Exhaust emission control device of internal combustion engine 审中-公开
标题翻译：内燃机排气控制装置
公开(公告)号：JP2010096057A
公开(公告)日：2010-04-30
申请号：JP2008266416
申请日：2008-10-15
申请人： Denso Corp , 株式会社デンソー
发明人： ARAKAWA MIYAO , KUROYANAGI MASATOSHI , NISHIJIMA YOSHIAKI
IPC分类号： F01N3/08 , B01D53/94 , F01N3/02 , F01N3/20 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device of an internal combustion engine that avoids continuous irradiation when purifying NOx and SOx exhausted from an internal combustion engine by electromagnetic irradiation, and has an irradiation unit that is resistant to contamination by exhaust gas.
SOLUTION: An exhaust emission control device 1 includes a DPF 5, and also includes a laser irradiation device 6 downstream from the DPF 5. The DPF 5 has a filter wall whose wall face is composed of an upstream side wall face carrying a catalyst for collecting particulate matters and appropriately eliminating them by burning, and a downstream side wall face carrying an adsorbent for adsorbing NOx and SOx. The laser irradiation device 6 has a laser generating units 61 and 62 that generate electromagnetic waves with wavelengths that can decompose NOx and SOx, respectively. A switching unit 63 switches between the laser generating unit 61 and the laser generating unit 62, and when a laser is applied to NOx and SOx adsorbed on the downstream side wall face of the DPF 5, NOx and SOx are decomposed and purified.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种内燃机的废气排放控制装置，其在通过电磁照射净化从内燃机排出的NOx和SO x时，避免连续照射，并且具有耐受污染的照射单元废气解决方案：废气排放控制装置1包括DPF 5，并且还包括在DPF 5下游的激光照射装置6.DPF 5具有过滤壁，该壁面由上游侧壁面构成，用于收集颗粒物并通过燃烧适当地消除它们的催化剂以及承载用于吸附NOx和SO x的吸附剂的下游侧壁面。激光照射装置6具有分别产生能够分解NOx和SOx的波长的电磁波的激光发生部61,62。开关单元63在激光产生单元61和激光发生单元62之间切换，并且当激光被施加到吸附在DPF 5的下游侧壁面上的NOx和SOx时，NOx和SOx被分解和净化。版权所有（C）2010，JPO＆INPIT

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