Title:
PARTICULATE-MATTER PROCESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/124088
Kind Code:
A1
Abstract:
The present invention inhibits excessive current from flowing through an electrode. A particulate-matter processing device, wherein a processing unit containing an electrode is provided in the exhaust passage of an internal combustion engine, aggregates particulate matter by producing a potential difference between said electrode and processing unit and is provided with: a power supply that is connected to and applies a voltage to the electrode; a current-detection device that detects current flowing through the electrode; an air-fuel ratio detection device that detects or estimates the air-fuel ratio of exhaust emissions flowing through the exhaust passage; and a voltage control device that makes the voltage applied to the electrode by the power supply lower when the air-fuel ratio detected by the air-fuel ratio detection device is rich than when said air-fuel ratio is stoichiometric or lean.
Inventors:
MITANI SHINICHI (JP)
NOMURA HIROSHI (JP)
MURASE EIJI (JP)
NOMURA HIROSHI (JP)
MURASE EIJI (JP)
Application Number:
PCT/JP2011/056295
Publication Date:
September 20, 2012
Filing Date:
March 16, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MITANI SHINICHI (JP)
NOMURA HIROSHI (JP)
MURASE EIJI (JP)
MITANI SHINICHI (JP)
NOMURA HIROSHI (JP)
MURASE EIJI (JP)
International Classes:
F01N3/02; B03C3/02
Foreign References:
| JP2006194116A | 2006-07-27 | |||
| JP2009243419A | 2009-10-22 | |||
| JP2006046281A | 2006-02-16 | |||
| JP2006194116A | 2006-07-27 |
Attorney, Agent or Firm:
KAWAGUCHI, Yoshiyuki et al. (JP)
Yoshiyuki Kawaguchi (JP)
Yoshiyuki Kawaguchi (JP)
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