公开(公告)号：US09567889B2

公开(公告)日：2017-02-14

申请号：US14127093

申请日：2013-04-19

Applicant: Yoshito Nogi

Inventor： Yoshito Nogi

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/36 ,  F02D41/40 ,  F02D41/02 ,  F01N3/08 ,  F01N3/20 ,  F02D41/30

CPC classification number: F01N3/36 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/206 ,  F01N2430/06 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2610/1493 ,  F02D41/0235 ,  F02D41/30 ,  F02D41/405 ,  Y02T10/44

Abstract: In an internal combustion engine, an exhaust purification catalyst and a hydrocarbon feed valve are arranged in an exhaust passage. When the air-fuel ratio of the exhaust gas which flows into the exhaust purification catalyst should be made rich, rich control, which makes the air-fuel ratio of the exhaust gas which is exhausted from the combustion chamber rich, is performed. In order to prevent clogging of the hydrocarbon feed valve, clogging preventing injection which injects hydrocarbons from the hydrocarbon feed valve by an injection interval ΔtCB is performed. The exhaust purification catalyst has an oxygen storage ability. At the initial period of rich control, clogging preventing injection is performed by a shorter injection interval ΔtCS.

Abstract translation: 在内燃机中，排气净化催化剂和烃供给阀配置在排气通路内。 在进行排气净化催化剂的废气的空燃比应变浓的情况下，能够实现使从燃烧室排出的废气的空燃比浓的控制。 为了防止烃进料阀的堵塞，执行从注入间隔ΔtCB从烃进料阀注入烃的防止注入。 排气净化催化剂具有储氧能力。 在浓控制的初始阶段，通过更短的喷射间隔ΔtCS执行堵塞防止喷射。

公开(公告)号：US20130041571A1

公开(公告)日：2013-02-14

申请号：US13141257

申请日：2010-03-11

Applicant: Yoshito Nogi

Inventor： Yoshito Nogi

IPC: F02D41/30

CPC classification number: F02D41/405 ,  F02D41/025 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/06 ,  F02D41/1475 ,  Y02T10/26 ,  Y02T10/44

Abstract: A control device for an internal combustion engine switches an air-fuel ratio of an air-fuel mixture in a cylinder from a first air-fuel ratio leaner than stoichiometry for normal operation to a second air-fuel ratio richer than the stoichiometry. During a switching period from beginning to end of the switching, the control device carries out intake throttling to control the air-fuel ratio of the air-fuel mixture in the cylinder to a third air-fuel ratio richer than the first air-fuel ratio and leaner than the stoichiometry, while learning a correction value for a fuel injection amount. During the switching period, before the intake throttling is completed, the control device carries out such a post-injection as prevents injected fuel from being combusted and learns the correction value. After the intake throttling is completed, the control device carries out such an after-injection as allows the injected fuel to be incompletely combusted and learns the correction value.

Abstract translation: 用于内燃机的控制装置将气缸中的空气燃料混合物的空燃比从正常操作的比化学计量稀少的第一空气 - 燃料比转换为比化学计量比更浓的第二空燃比。 在切换开始到结束的切换期间，控制装置进行进气节流，将气缸内的空气燃料混合物的空燃比控制为比第一空燃比富裕的第三空燃比 并且在学习燃料喷射量的校正值的同时，比化学计量更稀。 在切换期间，在进气节流完成之前，控制装置进行这样的后喷射，以防止喷射的燃料燃烧，并获得校正值。 进气节流完成后，控制装置进行这样的后喷射，使喷射燃料不完全燃烧，并获得校正值。

公开(公告)号：US09180410B2

公开(公告)日：2015-11-10

申请号：US14345533

申请日：2011-09-20

Applicant: Takeru Shirasawa ,  Makoto Ogiso ,  Yoshito Nogi

Inventor： Takeru Shirasawa ,  Makoto Ogiso ,  Yoshito Nogi

IPC: B01D53/94 ,  F01N3/20 ,  F01N3/035

CPC classification number: B01D53/9495 ,  B01D53/9409 ,  B01D2251/2067 ,  F01N3/035 ,  F01N3/2066 ,  F01N2560/05 ,  F01N2610/02 ,  F01N2610/1493 ,  F01N2900/0408 ,  F01N2900/1404 ,  F01N2900/1411 ,  Y02T10/24

Abstract: A decrease in determination accuracy on filter trouble due to a decrease in detection accuracy of a PM sensor is restricted. A filter, a selective reduction type NOx catalyst provided on a downstream of the filter, the PM sensor detecting an amount of PM on a downstream of the selective reduction type NOx catalyst, and a removal section conducting a process for removing a reducing agent attached to the PM sensor in a case where at least one of conditions is satisfied that a temperature of the selective reduction type NOx catalyst is equal to or lower than a threshold, that a temperature of the exhaust is equal to or lower than a threshold, that a flow rate of the exhaust is equal to or higher than a threshold, and that an adsorption amount of the reducing agent in the selective reduction type NOx catalyst is equal to or larger than a threshold are included.

Abstract translation: 由于PM传感器的检测精度降低导致的过滤器故障的判定精度的降低受到限制。 设置在过滤器下游的过滤器，选择还原型NOx催化剂，PM传感器检测选择还原型NOx催化剂下游的PM量;以及除去部分，其进行除去还原剂的除去工序 在满足选择还原型NOx催化剂的温度等于或低于阈值的条件中的至少一个，排气温度等于或低于阈值的情况下，PM传感器， 排气的流量等于或高于阈值，并且包括选择还原型NOx催化剂中的还原剂的吸附量等于或大于阈值。

公开(公告)号：US09856809B2

公开(公告)日：2018-01-02

申请号：US14784236

申请日：2013-04-30

Applicant: Yoshito Nogi ,  Yusuke Nozaki ,  Yuki Haba

Inventor： Yoshito Nogi ,  Yusuke Nozaki ,  Yuki Haba

IPC: F01N3/00 ,  F02D41/02 ,  F01N3/36 ,  F01N3/08 ,  F01N11/00 ,  F01N3/20

CPC classification number: F02D41/0245 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2066 ,  F01N3/36 ,  F01N11/002 ,  F01N2550/02 ,  F01N2610/03 ,  F01N2900/1602 ,  Y02T10/47

Abstract: In an internal combustion engine, an exhaust purification catalyst and a hydrocarbon feed valve are arranged in an exhaust passage. When a temperature of the exhaust purification catalyst falls in a first catalyst temperature region (I), a first NOX purification method is performed, while when a temperature of the exhaust purification catalyst falls in a second catalyst temperature region (II), a second NOX purification method is performed. When the temperature of the exhaust purification catalyst falls in a region (IIP) in the second catalyst temperature region close to the first catalyst temperature region, the temperature of the exhaust purification catalyst is made to increase to shift the region in which the temperature of the exhaust purification catalyst falls to the first catalyst temperature region to thereby switch the NOX purification method used from the second NOX purification method to the first NOX purification method.

公开(公告)号：US20160108839A1

公开(公告)日：2016-04-21

申请号：US14784236

申请日：2013-04-30

Applicant: Yoshito NOGI ,  Yusuke NOZAKI ,  Yuki HABA

Inventor： Yoshito NOGI ,  Yusuke NOZAKI ,  Yuki HABA

IPC: F02D41/02 ,  F01N3/20 ,  F01N3/36 ,  F01N11/00

CPC classification number: F02D41/0245 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/2066 ,  F01N3/36 ,  F01N11/002 ,  F01N2550/02 ,  F01N2610/03 ,  F01N2900/1602 ,  Y02T10/47

Abstract: In an internal combustion engine, an exhaust purification catalyst and a hydrocarbon feed valve are arranged in an exhaust passage. When a temperature of the exhaust purification catalyst falls in a first catalyst temperature region (I), a first NOX purification method is performed, while when a temperature of the exhaust purification catalyst falls in a second catalyst temperature region (II), a second NOX purification method is performed. When the temperature of the exhaust purification catalyst falls in a region (IIP) in the second catalyst temperature region close to the first catalyst temperature region, the temperature of the exhaust purification catalyst is made to increase to shift the region in which the temperature of the exhaust purification catalyst falls to the first catalyst temperature region to thereby switch the NOX purification method used from the second NOX purification method to the first NOX purification method.

Abstract translation: 在内燃机中，排气净化催化剂和烃供给阀配置在排气通路内。 当排气净化催化剂的温度落在第一催化剂温度区域（I）中时，进行第一NO x净化方法，而当排气净化催化剂的温度落在第二催化剂温度区域（II）中时，第二NOX 进行纯化方法。 当排气净化催化剂的温度落在靠近第一催化剂温度区域的第二催化剂温度区域的区域（IIP）中时，使排气净化催化剂的温度升高，使得排气净化催化剂的温度 排气净化催化剂下降到第一催化剂温度区域，从而将从第二NO x净化方法使用的NO x净化方法切换到第一NOX净化方法。

公开(公告)号：US20160032811A1

公开(公告)日：2016-02-04

申请号：US14127093

申请日：2013-04-19

Applicant: Yoshito NOGI

Inventor： Yoshito NOGI

IPC: F01N3/36 ,  F02D41/30 ,  F01N3/20

CPC classification number: F01N3/36 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/206 ,  F01N2430/06 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2610/1493 ,  F02D41/0235 ,  F02D41/30 ,  F02D41/405 ,  Y02T10/44

Abstract: In an internal combustion engine, an exhaust purification catalyst and a hydrocarbon feed valve are arranged in an exhaust passage. When the air-fuel ratio of the exhaust gas which flows into the exhaust purification catalyst should be made rich, rich control, which makes the air-fuel ratio of the exhaust gas which is exhausted from the combustion chamber rich, is performed. In order to prevent clogging of the hydrocarbon feed valve, clogging preventing injection which injects hydrocarbons from the hydrocarbon feed valve by an injection interval ΔtCB is performed. The exhaust purification catalyst has an oxygen storage ability. At the initial period of rich control, clogging preventing injection is performed by a shorter injection interval ΔtCS.

Abstract translation: 在内燃机中，排气净化催化剂和烃供给阀配置在排气通路内。 在进行排气净化催化剂的废气的空燃比应变浓的情况下，能够实现使从燃烧室排出的废气的空燃比浓的控制。 为了防止烃进料阀的堵塞，进行通过喷射间隔＆Dgr; tCB从烃进料阀喷射烃的防止注入。 排气净化催化剂具有储氧能力。 在富集控制的初始阶段，通过较短的注射间隔＆Dgr; tCS执行堵塞防止注射。