公开(公告)号：US20150211402A1

公开(公告)日：2015-07-30

申请号：US14608768

申请日：2015-01-29

Applicant: DENSO CORPORATION

Inventor： Shigeto YAHATA ,  Masumi KINUGAWA ,  Yuuki TARUSAWA ,  Keiji NODA ,  Mao HOSODA

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N3/206 ,  F01N2240/30 ,  F01N2240/38 ,  F01N2610/03 ,  F01N2610/08 ,  F01N2900/1602 ,  F01N2900/1806 ,  F01N2900/1811

Abstract: A reducing agent supplying device includes a reforming device, an obtaining section and a controller. The reforming device mixes fuel, which is a hydrocarbon compound, with air, and reforms the fuel by partially oxidizing the fuel with oxygen in the air. A reformed fuel is supplied into the exhaust passage as the reducing agent. The obtaining section obtains a physical quantity as a property index. The physical quantity has a correlation with property of the fuel that is supplied to the reforming device. The controller controls the reforming device according to the property index obtained by the obtaining section.

Abstract translation: 还原剂供给装置包括重整装置，获取部和控制器。 重整装置将作为烃类化合物的燃料与空气混合，并通过在空气中用氧气部分地氧化燃料来改变燃料。 重整燃料作为还原剂供给到排气通道中。 获取部分获得物理量作为属性索引。 物理量与提供给重整装置的燃料的性质具有相关性。 控制器根据由获取部获得的特性指标控制重整装置。

公开(公告)号：US20150369102A1

公开(公告)日：2015-12-24

申请号：US14743146

申请日：2015-06-18

Applicant: DENSO CORPORATION

Inventor： Masumi KINUGAWA ,  Shigeto YAHATA ,  Yuuki TARUSAWA ,  Yusuke MAJIMA ,  Mao HOSODA

IPC: F01N3/20

CPC classification number: F01N3/208 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/106 ,  F01N3/2033 ,  F01N3/2073 ,  F01N9/00 ,  F01N2240/30 ,  F01N2240/38 ,  F01N2610/03 ,  F01N2610/08 ,  F01N2900/1404 ,  F01N2900/1602 ,  Y02T10/26 ,  Y02T10/47

Abstract: A reducing agent supplying device is for a fuel combustion system that includes a NOx purifying device with a reducing catalyst arranged in an exhaust passage to purify NOx contained in exhaust gas of an internal combustion engine. The reducing agent supplying device supplies a reducing agent into the exhaust passage at a position upstream of the reducing catalyst. The reducing agent supplying device includes a reforming portion and a reformation suppressing portion. The reforming portion reforms the reducing agent by partially oxidizing the reducing agent. When a temperature of the reducing agent is higher than a first specified temperature that is equal to or higher than an activation temperature of the reducing catalyst, the reformation suppressing portion (i) suppresses the degree of reformation of the reducing agent in comparison with when a temperature of the reducing agent is lower than the first specified temperature, or (ii) stops the reformation of the reducing agent.

Abstract translation: 还原剂供给装置用于燃料燃烧系统，其包括具有排气通道中的还原催化剂的NOx净化装置，以净化内燃机的废气中所含的NOx。 还原剂供给装置在还原催化剂上游的位置向排气通路供给还原剂。 还原剂供给装置包括重整部和重构抑制部。 重整部分通过部分氧化还原剂改性还原剂。 当还原剂的温度高于等于或高于还原催化剂的活化温度的第一规定温度时，与目前的还原催化剂相比，重整抑制部（i）抑制还原剂的重整程度， 还原剂的温度低于第一规定温度，或者（ii）停止还原剂的改性。

公开(公告)号：US20160084130A1

公开(公告)日：2016-03-24

申请号：US14857181

申请日：2015-09-17

Applicant: DENSO CORPORATION

Inventor： Shigeto YAHATA ,  Masumi KINUGAWA ,  Yuuki TARUSAWA ,  Mao HOSODA ,  Yusuke MAJIMA

IPC: F01N3/08 ,  B01D53/94

CPC classification number: F01N3/0842 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/104 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/2066 ,  F01N3/303 ,  F01N3/32 ,  F01N13/0097 ,  F01N2240/16 ,  F01N2240/30 ,  F01N2240/38 ,  F01N2260/26 ,  F01N2560/06 ,  F01N2560/08 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2610/08 ,  F01N2610/085 ,  F01N2900/1406 ,  F01N2900/1602 ,  F02B37/164 ,  Y02T10/24

Abstract: A reducing agent supplying device includes a reaction container, an ozone generator, an air pump, an ozone-containing air pipe, a compressed air pipe, a switching device, and a switching controller. The reaction container defines a reaction chamber therein in which a reducing agent is reformed. The ozone generator generates ozone from oxygen in air. The air pump supplies air into the ozone generator. An ozone-containing air flows through the ozone-containing air pipe toward the reaction chamber. A portion of a compressed air flows through the compressed air pipe toward the reaction chamber. The switching device switches between an air pump mode, in which the ozone-containing air is supplied into the reaction chamber, and a supercharging mode, in which the compressed air is supplied into the reaction chamber. The switching controller controls the switching device based on a catalyst temperature, which is a temperature of the reducing catalyst, and an exhaust pressure, which is a pressure in the exhaust passage.

Abstract translation: 还原剂供给装置包括反应容器，臭氧发生器，空气泵，含臭氧空气管，压缩空气管，开关装置和开关控制器。 反应容器在其中限定反应室，其中还原剂被重整。 臭氧发生器在空气中产生氧气臭氧。 空气泵将空气供应到臭氧发生器中。 含臭氧的空气流过含臭氧的空气管朝向反应室。 一部分压缩空气流经压缩空气管道朝向反应室。 开关装置在将含臭氧的空气供给到反应室中的空气泵模式与将压缩空气供给到反应室中的增压模式之间切换。 开关控制器基于作为还原催化剂的温度的催化剂温度和作为排气通路中的压力的​​排气压力来控制开关装置。

公开(公告)号：US20160017780A1

公开(公告)日：2016-01-21

申请号：US14801092

申请日：2015-07-16

Applicant: DENSO CORPORATION

Inventor： Masumi KINUGAWA ,  Shigeto YAHATA ,  Yuuki TARUSAWA ,  Yusuke MAJIMA ,  Mao HOSODA

IPC: F01N3/20 ,  F01N3/021

CPC classification number: F01N3/2006 ,  F01N3/021 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/103 ,  F01N3/106 ,  F01N3/2066 ,  F01N3/36 ,  F01N13/009 ,  F01N2240/28 ,  F01N2240/30 ,  F01N2240/38 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2610/08 ,  F01N2610/107 ,  Y02A50/2344

Abstract: A reducing agent supplying device is for a fuel combustion system that includes a NOx purifying device with a reducing catalyst arranged in an exhaust passage to purify NOx. The reducing agent supplying device supplies a reducing agent into the exhaust passage upstream of the reducing catalyst. The reducing agent supplying device includes an air pipe, a vaporizing container, an injector, a heating member and a mixing plate. The air pipe defines an air passage therein. The vaporizing chamber is connected to the air pipe. The vaporizing container defines a vaporizing chamber therein that branches off from the air passage. The injector injects liquid hydrocarbon compound as a reducing agent. The heating member is disposed in the vaporizing chamber. The heating member heats and vaporizes the reducing agent. The mixing plate is connected to the heating member. The mixing plate extends from the vaporizing chamber into the air passage.

Abstract translation: 还原剂供给装置用于燃料燃烧系统，该燃料燃烧系统包括具有排气通道中的净化NOx的具有还原催化剂的NOx净化装置。 还原剂供给装置将还原剂供给到还原催化剂上游的排气通路。 还原剂供给装置包括空气管，蒸发容器，喷射器，加热构件和混合板。 空气管在其中限定空气通道。 蒸发室连接到空气管。 蒸发容器在其中限定了从空气通道分支的蒸发室。 喷射器注入液态烃化合物作为还原剂。 加热构件设置在蒸发室中。 加热部件加热并蒸发还原剂。 混合板连接到加热构件。 混合板从蒸发室延伸到空气通道中。

公开(公告)号：US20150211400A1

公开(公告)日：2015-07-30

申请号：US14608694

申请日：2015-01-29

Applicant: DENSO CORPORATION

Inventor： Masumi KINUGAWA ,  Shigeto YAHATA ,  Yuuki TARUSAWA ,  Keiji NODA ,  Mao HOSODA

IPC: F01N3/08 ,  F01N3/20

CPC classification number: F01N3/0892 ,  F01N3/208 ,  F01N2240/30 ,  F01N2240/38 ,  F01N2610/03 ,  F01N2610/105 ,  F01N2900/1602 ,  F01N2900/1811 ,  Y02T10/24

Abstract: A reducing agent supplying device includes a reaction container. The reaction container has a reaction chamber therein in which fuel of a hydrocarbon compound is mixed with air and is oxidized with oxygen in air. An equivalent ratio of fuel to air inside the reaction chamber is adjusted to be within a specified equivalent ratio range. A temperature inside the reaction chamber is adjusted to be within a specified temperature range. The specified equivalent ratio range and the specified temperature range are set such that a cool flame reaction, through which fuel inside the reaction chamber is partially oxidized with oxygen in air, is generated. The fuel partially oxidized through the cool flame reaction is used as the reducing agent.

Abstract translation: 还原剂供给装置包括反应容器。 反应容器在其中具有反应室，其中烃化合物的燃料与空气混合并在空气中被氧氧化。 将反应室内的燃料与空气的当量比调整到规定的等效比范围内。 反应室内的温度被调节到规定的温度范围内。 设定规定的当量比范围和规定的温度范围，使得反应室内的燃料通过空气中的氧部分氧化的冷焰反应被产生。 通过冷焰反应部分氧化的燃料用作还原剂。

公开(公告)号：US20130298534A1

公开(公告)日：2013-11-14

申请号：US13874786

申请日：2013-05-01

Applicant: DENSO CORPORATION

Inventor： Shigeto YAHATA ,  Tomohiro UENO

IPC: F01N3/021

CPC classification number: F01N3/021 ,  F01N13/008 ,  F01N2560/05 ,  F02D41/1439 ,  F02D41/1441 ,  F02D41/1466 ,  F02D41/222 ,  F02D2400/08 ,  Y02T10/40

Abstract: In an ordinary mode, when an abnormality diagnosis of a PM sensor attached to a downstream opening downstream of a filter is performed, the PM sensor is moved to a first upstream opening upstream of the filter, and an exhaust gas is discharged from an engine. An ECU stores a program for the abnormality diagnosis. In an abnormality diagnosis mode, the ECU diagnoses the PM sensor by comparing an output value of the PM sensor to a standard output after performing the program. The first upstream opening may be closed by a cover in the ordinary mode.

Abstract translation: 在普通模式中，当执行安装在过滤器下游的下游开口的PM传感器的异常诊断时，PM传感器被移动到过滤器上游的第一上游开口，并且排气从发动机排出。 ECU存储用于异常诊断的程序。 在异常诊断模式中，ECU通过在执行程序之后将PM传感器的输出值与标准输出进行比较来诊断PM传感器。 在普通模式中，第一上游开口可以由盖子封闭。

公开(公告)号：US20180251374A1

公开(公告)日：2018-09-06

申请号：US15756652

申请日：2016-08-25

Applicant: DENSO CORPORATION

Inventor： Hideo NARUSE ,  Shigeto YAHATA

IPC: C01B13/11 ,  F01N3/24

CPC classification number: C01B13/11 ,  C01B3/36 ,  C01B2201/62 ,  F01N3/021 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/24 ,  F01N2240/30 ,  F01N2240/38

Abstract: An ozone supply device includes an ozonizer, a blower and a housing while the housing serves as an intake duct member. The ozonizer includes electrodes that generate ozone through electric discharge. The blower includes a suction inlet, through which air is drawn, and a discharge outlet, through which the air drawn from the suction inlet is discharged. The blower supplies the air discharged from the discharge outlet to the electrodes and blows the ozone generated through the electric discharge to an exhaust passage. The housing forms a suction air passage that guides the air to the suction inlet. At least a portion of the ozonizer is placed in the suction air passage.

公开(公告)号：US20130304359A1

公开(公告)日：2013-11-14

申请号：US13874757

申请日：2013-05-01

Applicant: DENSO CORPORATION

Inventor： Shigeto YAHATA ,  Tomohiro UENO

IPC: F02D45/00

CPC classification number: F02D45/00 ,  F02D41/1439 ,  F02D41/1466 ,  F02D41/1467 ,  F02D41/222 ,  F02D2041/1433 ,  Y02T10/40

Abstract: In an ordinary mode, when an abnormality diagnosis of a PM sensor attached to a downstream opening downstream of a filter is performed, the PM sensor is moved to a first upstream opening upstream of the filter, and an exhaust gas is discharged from an engine. An ECU stores a program for the abnormality diagnosis. In an abnormality diagnosis mode, the ECU diagnoses the PM sensor by comparing an output value of the PM sensor to a standard output after performing the program. The first upstream opening may be closed by a cover in the ordinary mode.

Abstract translation: 在普通模式中，当执行安装在过滤器下游的下游开口的PM传感器的异常诊断时，PM传感器被移动到过滤器上游的第一上游开口，并且排气从发动机排出。 ECU存储用于异常诊断的程序。 在异常诊断模式中，ECU通过在执行程序之后将PM传感器的输出值与标准输出进行比较来诊断PM传感器。 在普通模式中，第一上游开口可以由盖子封闭。