发明授权
- 专利标题: Particulate matter sensor and exhaust gas purification apparatus
- 专利标题(中): 颗粒物传感器和废气净化装置
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申请号: US12788253申请日: 2010-05-26
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公开(公告)号: US08261540B2公开(公告)日: 2012-09-11
- 发明人: Athanasios G. Konstandopoulos , Fumishige Miyata , Senji Hamanaka , Takashi Yamakawa , Makoto Konno
- 申请人: Athanasios G. Konstandopoulos , Fumishige Miyata , Senji Hamanaka , Takashi Yamakawa , Makoto Konno
- 申请人地址: JP Ogaki-Shi GR Thessaloniki
- 专利权人: Ibiden Co., Ltd.,Athanasios G. Konstandopoulos
- 当前专利权人: Ibiden Co., Ltd.,Athanasios G. Konstandopoulos
- 当前专利权人地址: JP Ogaki-Shi GR Thessaloniki
- 代理机构: Ditthavong Mori & Steiner, P.C.
- 优先权: WOPCT/JP2009/066689 20090925
- 主分类号: F01N3/031
- IPC分类号: F01N3/031
摘要:
A particulate matter sensor includes a first detection filter provided in an exhaust gas flow passage and capable of collecting particle matter. A second detection filter is provided on a downstream side of the first detection filter in the exhaust gas flow passage and capable of collecting the particle matter. A first differential pressure detection unit is configured to detect a first differential pressure between pressures of an upstream side and the downstream side of the first detection filter. A second differential pressure detection unit is configured to detect a second differential pressure between pressures of an upstream side and a downstream side of the second detection filter. A particle matter amount detection unit is configured to detect an amount of particle matter based on a detection result of the first differential pressure detection unit and a detection result of the second differential pressure detection unit.