公开(公告)号：US08122708B2

公开(公告)日：2012-02-28

申请号：US12093171

申请日：2006-10-19

申请人： Shusuke Okada ,  Masato Kitazaki ,  Hiroshi Uehara ,  Osamu Kawatate

发明人： Shusuke Okada ,  Masato Kitazaki ,  Hiroshi Uehara ,  Osamu Kawatate

IPC分类号： F01N3/00

CPC分类号： F01N3/023 ,  B01D46/0086 ,  B01D2279/30 ,  F01N3/021 ,  F01N11/00 ,  F01N2550/04 ,  F01N2560/12 ,  Y02T10/47

摘要： An exhaust gas purification device having a DPF provided in an exhaust system of an internal combustion engine. The device has one or more sound pressure measurement means for measuring exhaust sound pressure and calculation means for calculating the amount of PM accumulation based on the exhaust sound pressure measured. On the upstream side of the DPF are arranged exhaust gas temperature measurement means and exhaust gas temperature raising means. The exhaust gas temperature raising means is activated when the amount of PM accumulation calculated by the calculation means is higher than a preset default and at the same time when the exhaust gas temperature measured by the exhaust temperature measurement means is lower than a lower limit of a temperature region in which the DPF can be regenerated.

摘要翻译： 一种排气净化装置，其具有设置在内燃机的排气系统中的DPF。 该装置具有用于测量排气声压的一个或多个声压测量装置和用于基于测量的排气声压来计算PM累积量的计算装置。 在DPF的上游侧布置排气温度测量装置和废气升温装置。 当由计算装置计算的PM累积量高于预设的默认值时，排气温度升高装置被激活，并且当排气温度测量装置测量的废气温度低于下限 DPF可再生的温度区域。

公开(公告)号：US20090151325A1

公开(公告)日：2009-06-18

申请号：US12093171

申请日：2006-10-19

申请人： Shusuke Okada ,  Masato Kitazaki ,  Hiroshi Uehara ,  Osamu Kawatate

发明人： Shusuke Okada ,  Masato Kitazaki ,  Hiroshi Uehara ,  Osamu Kawatate

IPC分类号： F01N11/00

CPC分类号： F01N3/023 ,  B01D46/0086 ,  B01D2279/30 ,  F01N3/021 ,  F01N11/00 ,  F01N2550/04 ,  F01N2560/12 ,  Y02T10/47

摘要： An exhaust gas purification device (101, 102, 103) having a DPF (33) provided in an exhaust system (30) of an internal combustion engine. The device has one or more sound pressure measurement means (8F, 8R) for measuring exhaust sound pressure and calculation means (10) for calculating the amount of PM accumulation based on the exhaust sound pressure measured. On the upstream side of the DPF (33) are arranged exhaust gas temperature measurement means (36) and exhaust gas temperature raising means (34). The exhaust gas temperature raising means (34) is activated when the amount of PM accumulation calculated by the calculation means (10) is higher than a preset default and at the same time when the exhaust gas temperature measured by the exhaust temperature measurement means (36) is lower than a lower limit of a temperature region in which the DPF (33) can be regenerated.

摘要翻译： 具有设置在内燃机的排气系统（30）中的DPF（33）的废气净化装置（101,102,103）。 该装置具有用于测量排气声压的一个或多个声压测量装置（8F，8R）和用于基于测量的排气声压来计算PM累积量的计算装置（10）。 在DPF（33）的上游侧配置排气温度测定单元（36）和排气升温单元（34）。 当由计算装置（10）计算出的PM累积量高于预先设定的缺省值时，排气温度升高装置（34）被激活，同时当排气温度测量装置（36 ）低于可以再生DPF（33）的温度区域的下限。