Title:
EXHAUST TREATMENT DEVICE FOR DIESEL ENGINE
Document Type and Number:
WIPO Patent Application WO/2012/105396
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing an exhaust treatment device for a diesel engine that is capable of suppressing a deterioration in fuel consumption and a decrease in output.
To solve this problem, this exhaust treatment device is equipped with: a DPF; a PM deposition amount estimation means for PM deposited in the DPF; a DPF regeneration means; a DPF regeneration control means; a storage means; an accelerated regeneration request information reporting means; an accelerated regeneration-starting operation means; and a mode-selecting means. When a mode that permits normal regeneration is selected, the point in time - at which the period (T1) for withholding the determination of an accelerated regeneration request elapses with no normal-regeneration-process-ending step (S6) occurring after a step (S3) wherein the normal regeneration process is started - is taken as the time (T2) for determining an accelerated regeneration request, and at this time (T2) for determining an accelerated regeneration request when the estimated value for the amount of PM deposition is at or greater than an accelerated regeneration request determination value (J2), it is determined that there is an accelerated regeneration request, and a step (S10) ensues, wherein the DPF regeneration control means begins reporting the accelerated regeneration request information by means of the accelerated regeneration request information reporting means.
Inventors:
INOUE KATSUSHI (JP)
ISHII YUUKI (JP)
LEE YONGCHOL (JP)
NINOMIYA TOMOHIRO (JP)
ISHII YUUKI (JP)
LEE YONGCHOL (JP)
NINOMIYA TOMOHIRO (JP)
Application Number:
PCT/JP2012/051608
Publication Date:
August 09, 2012
Filing Date:
January 26, 2012
Export Citation:
Assignee:
KUBOTA KK (JP)
INOUE KATSUSHI (JP)
ISHII YUUKI (JP)
LEE YONGCHOL (JP)
NINOMIYA TOMOHIRO (JP)
INOUE KATSUSHI (JP)
ISHII YUUKI (JP)
LEE YONGCHOL (JP)
NINOMIYA TOMOHIRO (JP)
International Classes:
F01N3/023; F01N9/00; F02D41/02; F02D41/04; F02D45/00
Foreign References:
| JP2003184536A | 2003-07-03 | |||
| JP2005155444A | 2005-06-16 | |||
| JP2005299403A | 2005-10-27 | |||
| JP2005113752A | 2005-04-28 |
Other References:
See also references of EP 2672083A4
Attorney, Agent or Firm:
SUZUE Shoji (JP)
Shoji Suzue (JP)
Shoji Suzue (JP)
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Claims:
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