公开(公告)号：JP2013124586A

公开(公告)日：2013-06-24

申请号：JP2011273641

申请日：2011-12-14

Applicant: Denso Corp ,  株式会社デンソー

Inventor： KURIMOTO NAOKI ,  TAKEYAMA MASAKI ,  TAKEDA HIDETO ,  OKAJIMA MASAHIRO ,  SUZUKI KUNINORI ,  FUJINO TOMOKI ,  MOTOE YUSUKE

IPC: F02M61/10 ,  F02D19/08 ,  F02M25/00 ,  F02M37/00 ,  F02M51/06 ,  F02M61/04 ,  F02M61/18

CPC classification number: Y02T10/123

Abstract: PROBLEM TO BE SOLVED: To provide a dual injector that inhibits wear for a long period and prevents liquid fuel from remaining in a first injection nozzle, allowing emission to be improved.SOLUTION: In a nozzle body 2, a communication hole 3 is provided which communicates a first sack chamber A4 of a first injection nozzle (A) and a second sack chamber B4 of a second injection nozzle B. This makes it possible for part of the liquid fuel to pass through the communication hole 3 to wet an end of a second needle B1, when the first injection nozzle (A) is operated. Thus, a second seat B6 on which the second needle B1 and the nozzle body 2 repeatedly abut can be lubricated by the liquid fuel, allowing wear of the second seat B6 to be inhibited for a long period. After injection of the liquid fuel is completed, gas jetting is executed, so that the liquid fuel remaining in the first sack chamber A4 of the first injection nozzle A and a first nozzle hole A5 can be blown inside a cylinder, allowing the emission to be improved.

Abstract translation: 要解决的问题：提供一种长时间抑制磨损并防止液体燃料残留在第一喷嘴中的双喷射器，从而允许发射得到改善。 解决方案：在喷嘴体2中，设置有连通第一喷嘴（A）的第一袋室A4和第二喷嘴B的第二袋室B4的连通孔3.这使得可以 当操作第一喷射喷嘴（A）时，液体燃料的一部分通过连通孔3以润湿第二针B1的端部。 因此，第二针B1和喷嘴主体2反复抵接的第二座椅B6可以被液体燃料润滑，从而允许第二座椅B6的磨损被长时间禁止。 在液体燃料喷射完成之后，执行气体喷射，从而可以在气缸内吹入残留在第一喷射喷嘴A的第一袋室A4中的液体燃料和第一喷嘴孔A5，从而允许发射 改进。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012237291A

公开(公告)日：2012-12-06

申请号：JP2011108398

申请日：2011-05-13

Applicant: Denso Corp ,  株式会社デンソー ,  Nagoya Univ ,  国立大学法人名古屋大学

Inventor： TANAKA HIROSHI ,  NISHIJIMA YOSHIAKI ,  OKAJIMA MASAHIRO ,  MATSUI YOSHIHIKO ,  KOBAYASHI ATSUYUKI

IPC: F01N3/08 ,  B01D53/94

Abstract: PROBLEM TO BE SOLVED: To reduce the risk of emission of a reducing agent gas to the atmosphere, in a cleaning system for reducing nitrogen oxides (NOx) contained in the exhaust gas of an internal combustion engine and cleaning the exhaust gas.SOLUTION: A reducing agent supply device includes a gas tank 30 storing NH3 gas (the reducing agent gas), a supply pipe line 40 for supplying NH3 gas from the gas tank 30 to an addition valve 20 for adding NH3 gas to an exhaust pipe 11 and a covering member 60 for covering the whole of the gas tank 30 and the supply pipe line 40. By this way, even when NH3 gas is leaked by the corrosion of the gas tank 30 or the supply pipe line 40 with the NH3 gas, the emission of the leaked NH3 to the atmosphere is prevented by the covering member 60. Even at the occurrence of an impact by a traffic accident or the like, the gas tank 30 or the supply pipe line 40 is protected by the covering member 60 to suppress the atmospheric emission of the NH3 gas even when the gas tank 30 or the supply pipe line 40 is damaged.

Abstract translation: 要解决的问题：为了减少在内燃机的废气中包含的还原氮氧化物（NOx）的清洁系统中，将还原剂气体排放到大气中的风险，并且清洁废气。 解决方案：还原剂供应装置包括储存NH 3气体（还原剂气体）的气罐30，用于将来自气罐30的NH 3气体供应到添加NH 3气体的添加阀20的供给管线40 排气管11和用于覆盖整个气罐30和供给管线40的覆盖部件60.这样，即使当NH 3气体被气罐30或供给管线40的腐蚀而泄漏时， NH 3气体，通过覆盖部件60防止泄漏的NH 3向大气中的排放。即使在交通事故等的碰撞发生时，气罐30或供给管路40被覆盖物 即使在燃气箱30或供给管路40被损坏的情况下，也能抑制NH 3气体的大气排放。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012136954A

公开(公告)日：2012-07-19

申请号：JP2010288064

申请日：2010-12-24

Applicant: Denso Corp ,  株式会社デンソー

Inventor： TANAKA HIROSHI ,  OKAJIMA MASAHIRO ,  MATSUI YOSHIHIKO ,  MOTOE YUSUKE ,  MATSUYAMA AKIHIRO

IPC: F01N3/01 ,  B03C3/02 ,  B03C3/70 ,  F01N3/02

Abstract: PROBLEM TO BE SOLVED: To achieve a safe and low cost device with a simple structure that generates an electric field necessary to remove particulate matters in a whole discharge space using a low voltage, the device using corona discharge to oxidize and burn the particulate matters in an exhaust gas of an internal combustion engine.SOLUTION: In a dust-collecting part 1, a high-voltage electrode 2 and a grounding electrode 3 for discharging are oppositely arranged in the discharge space 12 located in an exhaust pipe 11 of an engine E and the corona discharge is generated to charge and agglomerate the particulate matters in the exhaust gas. The high-voltage electrode 2 is composed of a conductive part 21 held in a cylindrical insulator 23 and a discharging part 22 extending from an end of the cylindrical insulator 23 to the discharge space 12. A cooler 4 is installed on the outside periphery of the cylindrical insulator 23 to remove heat by cooling water and to suppress degradation of insulation resistance of the cylindrical insulator 23.

Abstract translation: 要解决的问题：为了实现具有简单结构的安全且低成本的装置，其产生使用低电压产生在整个放电空间中去除颗粒物所必需的电场，使用电晕放电的装置来氧化和燃烧 内燃机的废气中的微粒物质。 解决方案：在集尘部分1中，用于排放的高压电极2和接地电极3相对地布置在位于发动机E的排气管11中的放电空间12中，并且产生电晕放电 以使排气中的颗粒物质进行充填和附聚。 高压电极2由保持在圆筒形绝缘体23中的导电部21和从圆筒形绝缘体23的端部延伸到放电空间12的放电部22构成。冷却器4安装在 圆柱形绝缘体23，以通过冷却水除去热量并且抑制圆柱形绝缘体23的绝缘电阻的劣化。版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2008255910A

公开(公告)日：2008-10-23

申请号：JP2007099962

申请日：2007-04-06

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO ,  NAGATOMO HIROAKI ,  KUROYANAGI MASATOSHI

IPC: F01N3/08 ,  B01D53/94 ,  F01N3/00

CPC classification number: F01N3/2066 ,  F01N2610/02 ,  F01N2610/1406 ,  F01N2610/1453 ,  F01N2610/1473 ,  F02B3/06 ,  Y02T10/24

Abstract: PROBLEM TO BE SOLVED: To provide an adding valve 1 capable of effectively inhibiting a temperature rise of a tip part, especially an inside of the tip part, of the adding valve 1 of reducer. SOLUTION: In the tip part of the adding valve 1, an outside channel 44 is extended to a position adjacent to a valve seat part 41. Consequently, since circulation flow of reducer can be introduced in the inside of the tip part of which temperature is the maximum in the adding valve 1, the temperature rise of the tip part can be effectively inhibited. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种能够有效地抑制还原剂的添加阀1的尖端部分，特别是尖端部分的内部的温度升高的添加阀1。

解决方案：在添加阀1的末端部分，外部通道44延伸到与阀座部分41相邻的位置。因此，由于减速器的循环流动可以被引入到 在加法阀1中该温度是最大值，能够有效地抑制前端部的温度上升。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008157218A

公开(公告)日：2008-07-10

申请号：JP2007198034

申请日：2007-07-30

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO ,  SAWAMURA MASAO

IPC: F04D29/42 ,  B01D53/94 ,  F04B53/00 ,  F04D5/00 ,  F04D29/22

Abstract: PROBLEM TO BE SOLVED: To provide an urea water pressure pump capable of preventing urea water from being frozen in a delivery pipe used for delivering the urea water to an area where the urea water is mixed with exhaust gas when the urea water is pumped through the pressure pump at a low temperature. SOLUTION: The urea water pressure pump is activated to raise the pressure of urea water in a pump passage 23 of a pressurizing unit 18, to thereby pump the urea water to a circulation passage 38 of a drive unit 19. The circulation of the urea water through the pressurizing unit 18 and the drive unit 19 converts a part of energization energy caused by the energization of a coil 29 for magnetizing a stator core 25 into thermal energy, thus causing a rise in a temperature of the stator core 25. Thus, the urea water passing through the circulation passage 38 and having a raised temperature is pumped to an injection valve 6 at desired pressure without being frozen. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种尿素水压泵，其能够防止尿素水在用于将尿素水输送到尿素水与排气混合的区域中的冷冻时，当尿素水为 在低温下泵送通过压力泵。 解决方案：尿素水压泵被激活以提高加压单元18的泵通道23中的尿素水的压力，从而将尿素水泵送到驱动单元19的循环通道38中。循环 通过加压单元18和驱动单元19的尿素水将由定子铁芯25磁化的线圈29的通电引起的一部分通电能量转换为热能，从而导致定子铁芯25的温度上升。 因此，通过循环通道38并且具有升高的温度的尿素水以期望的压力被泵送到注射阀6而不被冷冻。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2006348852A

公开(公告)日：2006-12-28

申请号：JP2005176274

申请日：2005-06-16

Applicant: DENSO CORP

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/24 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08

Abstract: PROBLEM TO BE SOLVED: To provide an NOx removing device capable of making the temperature of exhaust gas appropriate to conduct NOx reduction and presents high energy efficiency. SOLUTION: The NOx removing device has an exhaust gas flow passage with an intake flow passage 10 and an exhaust flow passage 11, a heat transfer body 1 for separating between the intake flow passage 10 and the exhaust flow passage 11 and conduct heat exchange between the intake flow passage 10 and the exhaust flow passage 11. Redox catalysts including NOx reduction catalyst provided in the exhaust gas flow passage. Exhaustion ports of the intake flow passage 10 form steps at every other port. By providing the redox catalyst in the exhaust gas passage and conducting heat exchange between the exhaust gas heated by generated heat and exhaust gas before reaching NOx reduction catalyst, introduction of new heat (energy) from outside can be minimized, wasteful energy introduction can be suppressed and it is useful for both attaining improvement of energy economy and purification of exhaust gas at the same time. Stagnant of exhaust gas in flow passages can be minimized by forming steps at the occasion. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2006289150A

公开(公告)日：2006-10-26

申请号：JP2005108911

申请日：2005-04-05

Applicant: Denso Corp ,  株式会社デンソー

Inventor： SUZUKI HIROBUMI ,  OKAJIMA MASAHIRO

IPC: B03C3/41 ,  B03C3/155 ,  F01N3/02

CPC classification number: B03C3/08 ,  B03C3/41 ,  B03C2201/06 ,  B03C2201/30 ,  F01N3/01 ,  F01N13/1827 ,  F01N2510/08 ,  Y02T10/20

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust treatment apparatus having an excellent insulation property. SOLUTION: The exhaust treatment apparatus is provided with an exhaust pipe 1, a discharge electrode 2 and a counter electrode 3 for discharging charges from the discharge electrode 2, charging particulate substances in exhaust gas, flocculating the charged particulate substances in the counter electrode 3 and recovering the charges, wherein the discharge electrode 2 is provided with a discharge part 20, a conductive part 21 having at least a shaft part 211 and an insulation part 22, and a glassy protective layer 221 is formed at least on the surface of the end part of a discharge part side for the insulation part 22. In the exhaust treatment apparatus, the glassy protective layer formed on the surface of the insulation part suppresses the sticking of components such as the particulate substances included in the exhaust gas. As a result, the particulate substances stuck to the outer surface of the insulation part and the conductive part and the exhaust pipe are not electrically conducted and an electric insulation property is secured. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供具有优异的绝缘性能的排气处理装置。 解决方案：排气处理装置设置有排气管1，放电电极2和对置电极3，用于从放电电极2放电，对排气中的颗粒物质进行充电，使计数器中的带电粒子物质絮凝 电极3并回收电荷，其中放电电极2设置有放电部20，至少具有轴部211和绝缘部22的导电部21和玻璃状保护层221至少形成在表面 在排气处理装置中，形成在绝缘部件表面上的玻璃状保护层抑制排气中包含的颗粒物质等成分的粘附。 结果，粘附到绝缘部分的外表面的颗粒物质和导电部分和排气管不导电，并且确保了电绝缘性能。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：JP2006207395A

公开(公告)日：2006-08-10

申请号：JP2005016981

申请日：2005-01-25

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/08 ,  B01D53/86 ,  B01D53/94 ,  F01N3/36

Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device capable of purifying (reducing) NOx well with fuel components by the sufficient reaction of NOx in exhaust gas and the spray-like fuel components injected from a reducing agent addition valve. SOLUTION: The exhaust emission control device comprises an exhaust pipe 35 extending from an internal combustion engine to exhaust the exhaust gas; an NOx purifying catalyst 60 disposed at an intermediate part of the exhaust pipe to purify NOx; the addition valve 50 injecting a spray of fuel components into the exhaust gas near the NOx purifying catalyst; and an atomizing member 55 disposed in the exhaust pipe to atomize the spray injected from the addition valve. The atomizing member is provided in addition to the NOx purifying catalyst, and atomization is accelerated to further positively purify NOx with the spray. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种废气排放控制装置，其能够通过排气中的NOx的充分反应和从还原剂添加阀喷射的喷射状燃料成分来充分地利用燃料成分净化（还原）NOx。 解决方案：废气排放控制装置包括从内燃机延伸以排出废气的排气管35; 设置在排气管的中间部分以净化NOx的NOx净化催化剂60; 添加阀50将燃料成分的喷雾喷射到NOx净化催化剂附近的废气中; 以及设置在排气管中的雾化构件55，以雾化从加法阀注入的喷雾。 除了NOx净化催化剂之外，还设置有雾化部件，并且通过喷雾加速雾化，进一步使NOx净化。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006204975A

公开(公告)日：2006-08-10

申请号：JP2005016977

申请日：2005-01-25

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: B01D53/94 ,  B01D53/86 ,  F01N3/08 ,  F01N3/24 ,  F01N3/36

Abstract: PROBLEM TO BE SOLVED: To provide an NOx purifier spraying a fuel into exhaust gas with the fuel consumption reduced. SOLUTION: The purifier has a catalyst body 1, an oxidation catalyst section 11, an NOx purifying section 12 and a fuel spraying means 2. In the catalyst body 1, a wall part 107 dividing the oxidation catalyst section 11 divides a part of the exhaust gas flow passage 101 in the upstream of the oxidation catalyst section 11, and the wall part 107 is made of a heat-conductive material. The purifier can reduce a fuel sprayed into exhaust gas by heating the exhaust gas flowing into the oxidation catalyst section with the heat generated in the oxidation catalyst section and operate with low fuel consumption. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供将燃料喷射到排气中的NOx净化器，同时降低燃料消耗。 解决方案：净化器具有催化剂体1，氧化催化剂部分11，NOx净化部分12和燃料喷射装置2.在催化剂体1中，分隔氧化催化剂部分11的壁部分107将部分 在氧化催化剂部11的上游侧的排气流路101，壁部107由导热性材料构成。 净化器可以通过在氧化催化剂部分中产生的热量加热流入氧化催化剂部分的排气并以低燃料消耗运行来减少喷射到废气中的燃料。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2006144576A

公开(公告)日：2006-06-08

申请号：JP2004332275

申请日：2004-11-16

Applicant: Denso Corp ,  株式会社デンソー

Inventor： OKAJIMA MASAHIRO

IPC: F01N3/24 ,  B01D53/94 ,  F01N3/08 ,  F01N3/28

Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive and simple NOx cleaning device, in which soot and viscous components in exhaust gas are not adhered to the periphery of an injection port of an adding valve adding reducing agent to keep normal injection of the reducing agent, in an NOx cleaning device for a diesel engine or a lean-burn gasoline engine. SOLUTION: The NOx cleaning device comprises: an NOx cleaning catalyst; and a reducing agent adding means for adding the reducing agent for reducing the NOx; and a contraction wall 40 disposed upstream the adding valve 32 so as to contract the flow of the exhaust gas E to direct to a tip 32a of the adding valve 32. A plurality of through holes 44 through which the soot in the exhaust gas passes are perforated in the contraction wall 40. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供廉价且简单的NOx净化装置，其中废气中的烟灰和粘性组分不附加到添加阀添加还原剂的注入口的周边以保持正常注入 用于柴油发动机或稀燃汽油发动机的NOx净化装置中。 解决方案：NOx净化装置包括：NOx清洗催化剂; 以及还原剂添加装置，用于添加用于还原NOx的还原剂; 以及设置在添加阀32上游的收缩壁40，以便将排气E的流动收缩以引导到添加阀32的末端32a。排气中的烟灰通过的多个通孔44是 在收缩壁40上穿孔。版权所有（C）2006，JPO＆NCIPI