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1. 发明授权

US4731993A Exhaust apparatus for a V-type internal combustion engine 失效
标题翻译： V型内燃机排气装置
公开(公告)号：US4731993A
公开(公告)日：1988-03-22
申请号：US8534
申请日：1987-01-29
申请人： Yoshiaki Ito , Ryuichi Deguchi , Hiroki Matsuoka , Toru Hanafusa
发明人： Yoshiaki Ito , Ryuichi Deguchi , Hiroki Matsuoka , Toru Hanafusa
IPC分类号： F01N13/10 , B60K13/04 , F01N3/28 , F01N13/08 , F01N7/10
CPC分类号： F01N13/08 , F01N3/2882 , F01N13/10 , Y02T10/22
摘要： An exhaust apparatus connected to a V-type internal combustion engine which is mounted in an engine compartment in a front part of a vehicle. The exhaust apparatus comprises a front exhaust manifold and a rear exhaust manifold connected to banks of the V-type engine respectively, an exhaust assembly connected to the exhaust manifolds and a catalytic converter interposed in the exhaust assembly. The wall thickness of the front exhaust manifold is made thinner than that of the rear exhaust manifold. By the thin front exhaust manifold, the heat capacity of the front exhaust path extending from the front exhaust manifold toward the catalytic converter is lessened, thereby suppressing the dropping of temperature of the exhaust gas flowing through the front exhaust path. As a result, the dropping of temperature of the exhaust gas reaching the catalytic converter is suppressed as a whole, and a catalyst in the catalytic converter is warmed up quickly to a required temperature.
摘要翻译：连接到V型内燃机的排气装置，其安装在车辆前部的发动机室中。排气装置包括分别连接到V型发动机的组的前排气歧管和后排气歧管，连接到排气歧管的排气组件和插入排气组件中的催化转化器。前排气歧管的壁厚比后排气歧管的壁厚薄。通过薄的前排气歧管，从前排气歧管朝向催化转化器延伸的前排气路的热容减少，从而抑制流经前排气通路的废气的温度下降。结果，总体上抑制到达催化转化器的废气的温度下降，并且将催化转化器中的催化剂快速升温至所需温度。

2. 发明授权

US5765370A Device for determining the abnormal degree of deterioration of a catalyst 失效
标题翻译：用于确定催化剂的异常恶化程度的装置
公开(公告)号：US5765370A
公开(公告)日：1998-06-16
申请号：US632375
申请日：1996-04-10
申请人： Toru Hanafusa , Michihiro Ohashi
发明人： Toru Hanafusa , Michihiro Ohashi
IPC分类号： F02D45/00 , F01N3/20 , F01N11/00
CPC分类号： F01N11/007 , F01N11/002 , F01N2550/02 , Y02T10/47
摘要： A device for determining the excessive degree of deterioration of catalyst of a catalytic converter arranged in an internal combustion engine exhaust system is disclosed. The device comprises a purification ability determining unit for determining a current purification ability of the catalyst and a temperature sensor for determining a current temperature of the catalyst. Therefore, a threshold of the purification ability which corresponds to the excessive degree of deterioration of the catalyst is determined in accordance with the current temperature of the catalyst. An appraisal value is determined in accordance with a difference between the threshold and the current purification ability. It is determined that the degree of deterioration of the catalyst is excessive when the integration value of the appraisal value exceeds a predetermined value.
摘要翻译：公开了一种用于确定布置在内燃机排气系统中的催化转化器的催化剂的过度劣化的装置。该装置包括用于确定催化剂的当前净化能力的净化能力确定单元和用于确定催化剂的当前温度的温度传感器。因此，根据催化剂的当前温度来确定与催化剂的过度劣化对应的净化能力的阈值。根据阈值和当前净化能力之间的差异来确定评估值。当评估值的积分值超过预定值时，确定催化剂的劣化程度过大。

3. 发明授权

US5752382A Device for determining an abnormal degree of deterioration of a catalyst 失效
标题翻译：用于确定催化剂的异常劣化程度的装置
公开(公告)号：US5752382A
公开(公告)日：1998-05-19
申请号：US686164
申请日：1996-07-24
申请人： Toru Hanafusa , Michihiro Ohasi
发明人： Toru Hanafusa , Michihiro Ohasi
IPC分类号： F02D45/00 , F01N3/20 , F01N9/00 , F01N11/00 , F01N3/28
CPC分类号： F01N9/005 , F01N11/002 , F01N11/005 , F01N2550/02 , Y02T10/47
摘要： A device for determining an abnormal degree of deterioration of catalyst of a catalytic converter, arranged in an internal combustion engine exhaust system, is disclosed. The device comprises a temperature sensor for measuring a temperature of the catalyst and an electronic control unit which assumes a temperature of the catalyst on the basis of the engine operating condition and calculates a ratio of a varying value of the measured temperature by the temperature sensor to a varying value of the assumed temperature and determines that the degree of deterioration of the catalyst is abnormal when the ratio is smaller than a predetermined value.
摘要翻译：公开了一种用于确定布置在内燃机排气系统中的催化转化器的催化剂的异常恶化程度的装置。该装置包括用于测量催化剂温度的温度传感器和基于发动机运行状态而呈现催化剂温度的电子控制单元，并且计算由温度传感器测得的温度的变化值与假设温度的变化值，并且当比率小于预定值时，确定催化剂的劣化程度是异常的。

4. 发明授权

US5987977A Device for determining an abnormal degree of deterioration of a catalyst 失效
标题翻译：用于确定催化剂的异常劣化程度的装置
公开(公告)号：US5987977A
公开(公告)日：1999-11-23
申请号：US685646
申请日：1996-07-24
申请人： Toru Hanafusa , Michihiro Ohashi
发明人： Toru Hanafusa , Michihiro Ohashi
IPC分类号： F02D45/00 , F01N3/20 , F01N9/00 , F01N11/00 , F02D41/14 , G01M19/00
CPC分类号： F01N9/005 , F01N11/00 , F01N11/002 , F01N11/005 , F01N11/007 , F01N2550/02 , F01N2560/023 , F01N2570/16 , Y02T10/47
摘要： A device for determining the abnormal degree of deterioration of catalyst of a catalytic converter arranged in an internal combustion engine exhaust system is disclosed. The device comprises ability value grasping means for grasping an ability value in relation with a current purification ability of the catalyst and varying amount grasping means for grasping a varying amount of the ability value grasped by the ability value grasping means. It is determined that the degree of deterioration of the catalyst is abnormal when the varying amount grasped by the varying amount grasping means is smaller than a predetermined value.
摘要翻译：公开了一种用于确定布置在内燃机排气系统中的催化转化器的催化剂的异常恶化程度的装置。该装置包括用于抓取与催化剂的当前净化能力相关的能力值的能力值抓取装置和用于抓取由能力值抓取装置掌握的变化量的能力值的变化量抓取装置。当由变化量抓取装置掌握的变化量小于预定值时，确定催化剂的劣化程度是异常的。

5. 发明授权

US5979161A Device for determining the abnormal degree of deterioration of a catalyst 失效
标题翻译：用于确定催化剂的异常恶化程度的装置
公开(公告)号：US5979161A
公开(公告)日：1999-11-09
申请号：US62476
申请日：1998-04-17
申请人： Toru Hanafusa , Michihiro Ohashi
发明人： Toru Hanafusa , Michihiro Ohashi
IPC分类号： F02D45/00 , F01N3/20 , F01N11/00 , F01N3/00
CPC分类号： F01N11/007 , F01N11/002 , F01N2550/02 , Y02T10/47
摘要： A device for determining the abnormal degree of deterioration of catalyst of a catalytic converter arranged in an internal combustion engine exhaust system is disclosed. The device comprises a purification ability grasping unit for grasping a current purification ability of the catalyst and a temperature sensor for grasping a current temperature of the catalyst. Therefore, a threshold of the purification ability which corresponds to the abnormal degree of deterioration of the catalyst is determined in accordance with the current temperature of the catalyst. An appraisal value is determined in accordance with a difference between the threshold and the current purification ability. It is determined that the degree of deterioration of the catalyst is abnormal when the integration value of the appraisal value exceeds a predetermined value.
摘要翻译：公开了一种用于确定布置在内燃机排气系统中的催化转化器的催化剂的异常恶化程度的装置。该装置包括用于抓取催化剂的电流净化能力的净化能力抓取单元和用于掌握催化剂的当前温度的温度传感器。因此，根据催化剂的当前温度来确定对应于催化剂的异常退化程度的净化能力的阈值。根据阈值和当前净化能力之间的差异来确定评估值。当评估值的积分值超过预定值时，确定催化剂的劣化程度是异常的。

6. 发明授权

US5865027A Device for determining the abnormal degree of deterioration of a catalyst 失效
标题翻译：用于确定催化剂的异常恶化程度的装置
公开(公告)号：US5865027A
公开(公告)日：1999-02-02
申请号：US62449
申请日：1998-04-17
申请人： Toru Hanafusa , Michihiro Ohashi
发明人： Toru Hanafusa , Michihiro Ohashi
IPC分类号： F02D45/00 , F01N3/20 , F01N11/00 , F01N3/00
CPC分类号： F01N11/007 , F01N11/002 , F01N2550/02 , Y02T10/47
摘要： A device for determining the abnormal degree of deterioration of a catalyst of a catalytic converter arranged in an internal combustion engine exhaust system is disclosed. The device includes first and second air-fuel ratio sensors located upstream and downstream of the catalyst. The device determines a first purification ability based on readings of the sensors during a warmup stage of the catalyst, and a second purification ability after the warmup is completed. An overall purification ability of the catalyst is determined by combining the purification ability of the catalyst during warmup and the purification ability of the catalyst after warmup, where the weight of the purification ability during warmup is less than the purification ability after warmup in the overall purification ability. If the overall purification ability of the catalyst is less than a certain amount, then the device determines that the catalyst has deteriorated.
摘要翻译：公开了一种用于确定布置在内燃机排气系统中的催化转化器的催化剂的异常恶化程度的装置。该装置包括位于催化剂上游和下游的第一和第二空气 - 燃料比传感器。该装置基于催化剂的预热阶段期间的传感器的读数确定第一净化能力，并且在完成加热之后的第二净化能力。催化剂的整体净化能力通过将预热时的催化剂的净化能力与预热后的催化剂的净化能力结合起来而确定，其中预热时的净化能力的重量小于在整体纯化中预热后的净化能力能力。如果催化剂的总体净化能力小于一定量，则该装置确定催化剂已劣化。

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