公开(公告)号：DE102007047906A1

公开(公告)日：2008-06-05

申请号：DE102007047906

申请日：2007-11-30

Applicant: DENSO CORP

Inventor： NAGATOMO HIROAKI ,  OKAJIMA MASAHIRO

IPC: F01N3/10

Abstract: The device has an electronic control unit (ECU) (30) opening a urea solution injecting valve (15) to inject the agent from a reducing agent supplying mechanism, into an exhaust pipe (11) to induce a specific emission control reaction in an exhaust gas catalyzer. The ECU monitors a freezing condition change after stopping of an engine and a change of the agent remaining in a reducing agent supplying circle including the mechanism and the valve, from liquid to solid phase. The valve opens based on the monitored change to convey the agent that is remaining in the circle, into the pipe.

公开(公告)号：DE102006000155A1

公开(公告)日：2006-10-12

申请号：DE102006000155

申请日：2006-04-04

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO ,  SUZUKI HIROFUMI

IPC: F01N3/01 ,  B03C3/70

Abstract: An automotive diesel exhaust particle filter chamber wall (1) is penetrated by an electrode (2) with a discharge section (20) inside the chamber. The electrode has an insulated sleeve (22) around a conducting core (21) that terminates in an end-section (220) that has a lesser heat capacity than the remainder of the insulated sleeve and core section. The conical end-section (220) wall thickness is the same as or less than that of the rest of the insulated section (22). The insulating sleeve terminates in a conical shoulder to a smaller diameter.

公开(公告)号：DE10334118A1

公开(公告)日：2004-03-11

申请号：DE10334118

申请日：2003-07-25

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO ,  SHIBATA HITOSHI ,  SUGIURA SHINJI ,  OGUMA YOSHITOMO ,  YAMAMOTO KAZUO

IPC: F02M55/02 ,  F02M61/14

Abstract: The appliance has a fuel injection unit (30) for cylinders (8). The unit has an axial end on one side of the injection connection (34), which is fitted into the cylinder head. The other axial end of the injection connection is fitted into a fuel feed pipe (20) to supply fuel to the injection unit. A separator (4,26) separates the fuel feed pipe from the cylinder head. A pressure element (40) between fuel feed pipe and injection unit accommodates a separator force to press the feed pipe to one side opposite to cylinder head, and to press the injection unit to one side of the cylinder head, due to reaction force opposite to the separator force.

公开(公告)号：JP2008138583A

公开(公告)日：2008-06-19

申请号：JP2006325290

申请日：2006-12-01

Applicant: Denso Corp ,  株式会社デンソー

Inventor： NAGATOMO HIROAKI ,  OKAJIMA MASAHIRO

IPC: F01N3/08 ,  B01D53/94

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/14 ,  Y02T10/24

Abstract: PROBLEM TO BE SOLVED: To execute suitable exhaust emission purification by addition of a reducing agent while protecting a reducing agent addition valve and a reducing agent supply part.
SOLUTION: A DPF 12 and an SCR catalyst 13 are arranged on an exhaust pipe 11, and a urea aqueous solution addition valve 15 for adding and supplying a urea aqueous solution in the exhaust pipe 11 is arranged between the DPF 12 and the SCR catalyst 13. As a structure of a urea aqueous solution supply part, a urea aqueous solution having predetermined concentration is stored in a urea aqueous solution tank 21, and a urea aqueous solution pump 22 is arranged in the tank 21. An ECU 30 opens the urea aqueous solution addition valve 15 in response to congelation change of the urea aqueous solution remaining in the urea aqueous solution addition valve 15 and the like after stopping an engine. Thereby, the remaining urea aqueous solution in the urea aqueous solution addition valve 15 and the like is discharged.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：通过添加还原剂来执行合适的废气净化，同时保护还原剂添加阀和还原剂供应部分。 解决方案：DPF 12和SCR催化剂13布置在排气管11上，并且用于在排气管11中添加和供应尿素水溶液的尿素水溶液添加阀15布置在DPF 12和 SCR催化剂13.作为尿素水溶液供给部的结构，将具有预定浓度的尿素水溶液储存在尿素水溶液罐21中，并且将尿素水溶液泵22配置在罐21中.ECM30打开 尿素水溶液添加阀15响应于在停止发动机之后残留在尿素水溶液添加阀15等中的尿素水溶液的凝结变化。 由此，排出尿素水溶液添加阀15等中的剩余的尿素水溶液。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008019853A

公开(公告)日：2008-01-31

申请号：JP2007062171

申请日：2007-03-12

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO ,  KUROYANAGI MASATOSHI ,  NISHIJIMA YOSHIAKI

IPC: F01N3/02 ,  B03C3/02 ,  B03C3/40 ,  B03C3/49

CPC classification number: F01N3/0275 ,  B03C3/0175 ,  B03C3/06 ,  B03C3/12 ,  B03C2201/08 ,  B03C2201/10 ,  B03C2201/30 ,  F01N3/01 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/28

Abstract: PROBLEM TO BE SOLVED: To improve electrostatic collection performance by preventing electrostatically collected fine particles from scattering again by impact in collection, or separating to be discharged, in an exhaust gas treatment apparatus of an internal combustion engine using corona discharge. SOLUTION: A corona discharge electrode 2 and an electrostatic collection metal filter 3 being a dust collection electrode are oppositely arranged nearly at the center part of an exhaust passage 11 of an internal combustion engine and its downstream side, respectively. The electrostatic collection metal filter 3 comprises: an inner peripheral passage 32 having a hollow tubular shape and continuing to the exhaust passage 11; and a conductive outer peripheral filter part 31 formed with a cylindrical wall part in its circumference, attracts aggregated fine particles included in an exhaust gas flow to the outer peripheral filter part 31 by Coulomb's force, and inductively retains them in multiple partitioned capture space parts 33 opened to the inner peripheral passage 32. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：通过使用电晕放电在内燃机的废气处理装置中防止静电收集的细颗粒再次通过收集冲击或分离排出来改善静电收集性能。 解决方案：作为集尘电极的电晕放电电极2和静电收集金属过滤器3分别相对地布置在内燃机的排气通道11的中心部分及其下游侧。 静电收集金属过滤器3包括：具有中空管状形状并连续到排气通道11的内周通道32; 并且在其圆周上形成有圆筒形壁部的导电外周过滤器部31，通过库仑力将排气流中包含的聚集微粒吸引到外周过滤器部31，并将其感应地保持在多个分割捕获空间部33 向内围通道32开放。版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006291708A

公开(公告)日：2006-10-26

申请号：JP2005108876

申请日：2005-04-05

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO ,  SUZUKI HIROBUMI

IPC: F01N3/02 ,  B03C3/40 ,  B03C3/41 ,  B03C3/47

CPC classification number: B03C3/70 ,  B03C3/08 ,  B03C3/41 ,  F01N3/01 ,  F01N3/035 ,  F01N2240/04

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust gas treatment device having excellent insulation. SOLUTION: This invented exhaust gas treatment device includes an exhaust pipe 1, a discharge electrode 2, and an opposed electrode 3, discharges electrical charge from the discharge electrode 2 to electrostatically charge particulate matter in exhaust gas, and agglutinates electrostatically charged particulate matter by the opposed electrode 3 and collects electrical charge. The discharge electrode 2 includes an electrical discharge part 20, a conductive part 21 provided with at least a shaft part 211 and an isolation part 22. Thickness in a radial direction of the isolation part 22 at a tip part 220 on the electrical discharge part side is formed thinner then other part. This invented exhaust treatment device suppresses accumulation of particulate matter on a tip part by making heat capacity of the tip part of the isolation part small, particulate matter adhering on an outer surface of the isolation part interrupts conduction of the conductive part and the exhaust pipe to secure high electrical isolation. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供具有优异绝缘性的废气处理装置。 解决方案：本发明的废气处理装置包括排气管1，放电电极2和相对电极3，从放电电极2排出电荷，对废气中的颗粒物进行静电充电，并将静电电荷的微粒 并且收集电荷。 放电电极2包括放电部20，设置有至少轴部211和隔离部22的导电部21.在放电部侧的顶端部220处的隔离部22的径向的厚度 形成比其他部分更薄。 本发明的排气处理装置通过使隔离部的前端部的热容变小，从而抑制颗粒物质在顶端部的积聚，附着在隔离部的外表面的颗粒物质中断导电部和排气管的导通， 确保高电隔离。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006207394A

公开(公告)日：2006-08-10

申请号：JP2005016973

申请日：2005-01-25

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/24 ,  B01D53/94 ,  B01J35/02 ,  F01N3/08 ,  F01N3/28 ,  F01N3/36 ,  F01N5/02

CPC classification number: B01D53/9431 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2033 ,  F01N3/2066 ,  F01N3/2889 ,  F01N13/009 ,  F01N2240/02 ,  F01N2370/02 ,  F01N2510/06 ,  F01N2610/03 ,  Y02T10/24 ,  Y02T10/26

Abstract: PROBLEM TO BE SOLVED: To provide an NOx purifying device reduced in fuel consumption in the NOx purifying device injecting fuel into exhaust gas.
SOLUTION: This NOx purifying device comprising an exhaust gas heating part 2 having a fuel injection means 21 and a catalyst metal, and an NOx purifying part 14, is characterized in that a heat exchanger 1 capable of heat transfer is provided with a downstream exhaust gas passage 13 provided downstream of the NOx purifying part 14 to allow the flow of exhaust gas heated in the exhaust gas heating part 2, and an upstream exhaust gas passage 12 provided upstream of the exhaust gas heating part 14 to allow the flow of exhaust gas heated in the exhaust gas heating part 2. This NOx purifying device can be operated at low fuel consumption.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种NOx净化装置，其将燃料喷射到排气中的NOx净化装置中的燃料消耗降低。 解决方案：该NOx净化装置包括具有燃料喷射装置21和催化剂金属的废气加热部分2和NOx净化部分14，其特征在于，能够传热的热交换器1具有 设置在NOx净化部14的下游侧的下游侧废气通路13，使排气加热部2中被加热的废气流，以及设置在排气加热部14的上游侧的上游排气通路12， 在排气加热部2中被加热的废气。该NOx净化装置能够以低燃料消耗运转。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006200511A

公开(公告)日：2006-08-03

申请号：JP2005015877

申请日：2005-01-24

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/08 ,  B01D53/94

CPC classification number: Y02C20/10

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of minimizing fuel pressure fluctuation (pressure pulsation) in an addition system including a reducing agent addition valve and a pipe, when the reducing agent addition valve for injecting a fuel component to exhaust gas is provided in the middle of an exhaust pipe. SOLUTION: This exhaust emission control device is provided with the exhaust pipe 31 extending from an internal combustion engine and exhausting exhaust gas; a NOx elimination device 38 arranged in the exhaust pipe 31 and eliminating NOx in exhaust gas; the reducing agent addition valve 40 connected with a fuel tank 28 by the pipe 43 and injecting the fuel component to exhaust gas in the vicinity of the NOx elimination device 38; and a pulsation suppressing member 45 which is provided in the addition system 47 including the reducing agent addition valve 40 and the pipe 43 and suppresses fuel pressure fluctuation generated in the addition system 47 along with opening/closing of the reducing agent addition valve 40. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 解决问题的方案为了提供一种能够使包括还原剂添加阀和管道的添加系统中的燃料压力波动（压力脉动）最小化的废气排放控制装置，当用于喷射燃料成分的还原剂添加阀 废气设置在排气管的中间。 解决方案：该废气排放控制装置设置有从内燃机延伸并排出废气的排气管31; 布置在排气管31中并消除废气中的NOx的NOx消除装置38; 通过管道43与燃料箱28连接的还原剂添加阀40，并且将燃料成分喷射到NOx排除装置38附近的废气中; 以及设置在包括还原剂添加阀40和管43的添加系统47中的脉动抑制构件45，并且抑制加法系统47中产生的燃料压力波动以及还原剂添加阀40的打开/关闭。 P>版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006105073A

公开(公告)日：2006-04-20

申请号：JP2004295509

申请日：2004-10-08

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/24 ,  B01D53/86 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28 ,  F01N9/00

CPC classification number: Y02T10/47

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine providing good exhaust gas purification effect at an early stage while keeping output performance of the internal combustion engine fine by optimizing a heater position. SOLUTION: A heater 22 for heating a catalyst carrier 21 is arranged with keeping a predetermined interval from an upstream side end surface of the catalyst carrier 21. The predetermined interval is established in a range to keep pressure loss of exhaust gas at an upstream side end surface of the catalyst carrier 21 due to arrangement of the heater 22 at a tolerance value or less and to keep temperature of the catalyst carrier 21 which can be raised by heating by the heater 22 at a lower limit value or more. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种用于内燃机的废气排放控制装置，其通过优化加热器位置来保持内燃机的输出性能良好，从而在早期提供良好的废气净化效果。 解决方案：用于加热催化剂载体21的加热器22以与催化剂载体21的上游侧端面保持预定间隔的方式布置。预定间隔建立在将废气的压力损失保持在 由于加热器22的配置为公差值以下，催化剂载体21的上游侧端面，通过加热器22的加热而使催化剂载体21的温度保持在下限值以下。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006078267A

公开(公告)日：2006-03-23

申请号：JP2004261214

申请日：2004-09-08

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: G01N27/68 ,  G01N15/02

Abstract: PROBLEM TO BE SOLVED: To provide a detection device 1 of the number of particles and a measuring device 2 of the number of particles using it capable of measuring accurately the number of particulate matter even if the number of the particulate matter included in exhaust gas from an internal combustion engine is large.
SOLUTION: This detection device 1 of the number of particles is equipped with a discharge electrode 12 for charging the particulate matter included in the exhaust gas by applying a voltage to the exhaust gas, and a current detector 14 for detecting a current I to be detected equivalent to the charge quantity of the particulate matter and synthesizing current detection signals. In accompany with voltage application to the exhaust gas, electrons emitted from the discharge electrode 12, for example, are bonded to oxygen molecules to form oxygen ions, and the oxygen ions adhere to the individual particulate matter to thereby charge the particulate matter. Since the charge quantity of the particulate matter is increased corresponding to the number of particulate matter, the current I to be detected equivalent to the charge quantity of the particulate matter reflects accurately the number of particulate matter even if the number of particulate matter is large. Hereby, even if the number of particulate matter included in the exhaust gas is large, the current detection signals reflecting accurately the number of particulate matter can be synthesized by detecting the current I to be detected like this.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供使用能够精确地测量颗粒物质数量的颗粒数量的测量装置2和测量装置2的数量，即使包括在颗粒物质中的颗粒物质的数量 来自内燃机的废气大。 解决方案：该颗粒数的检测装置1配备有放电电极12，用于通过向排气施加电压对包含在排气中的颗粒物进行充电;以及电流检测器14，用于检测电流I 被检测为与微粒物质的电荷量相当并合成电流检测信号。 伴随着对排气的施加电压，例如从放电电极12发射的电子与氧分子结合而形成氧离子，氧离子附着于各个颗粒物质，从而对颗粒物进行充电。 由于颗粒物质的电荷量相应于颗粒物质的数量增加，与微粒物质的电荷量相当的待检测电流I即使颗粒物质的数量较大也能够精确地反映颗粒物的数量。 因此，即使排气中包含的颗粒物质的数量大，也可以通过检测这样的检测电流I来合成精确地反映颗粒物的数量的电流检测信号。 版权所有（C）2006，JPO＆NCIPI