Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CONTROL OF REGENERATION OF A PARTICULATE FILTER OF EXHAUST GAS
Document Type and Number:
WIPO Patent Application WO/2015/033519
Kind Code:
A1
Abstract:
An exhaust gas purification apparatus of an internal combustion engine is provided with a filter that collects PM in exhaust gas, a first accumulation amount obtaining unit that obtains an accumulation amount of PM (Mpm at S201), a second accumulation amount obtaining unit that obtains an accumulation amount of ash (Mash at S201) and a control unit that executes a regeneration process to oxidize the accumulated PM, wherein, in a case (at S202) where the accumulation amount of ash (Mash) is equal to or larger than a threshold amount (Ma), the control unit executes the regeneration process provided (at S401) the accumulation amount of PM (Mpm) is in a state where it has reached a first predetermined amount (Mpmt of S206) which is an amount to raise a filter temperature (current temperature Tc) to a temperature (target temperature Tt) by oxidation heat generated by the regeneration process, the temperature (Tt) being a temperature at which the accumulated ash contracts, i.e. the incombustible matter increases density and decreases volume at >750-1050°C in order to reduce back pressure of the filter.

More Like This:
JPS59150916REGENERATING METHOD OF DIESEL EXHAUST FINE PARTICLE TRAP
JP6649625Exhaust purification device for internal combustion engine
WO/2016/143902EXHAUST PURIFICATION SYSTEM, AND CONTROL METHOD FOR EXHAUST PURIFICATION SYSTEM
Inventors:
KOBASHI NORIYASU (JP)
TSUNOOKA TAKASHI (JP)
OTSUKA TAKAYUKI (JP)
Application Number:
PCT/JP2014/004137
Publication Date:
March 12, 2015
Filing Date:
August 08, 2014
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
F01N3/025; F01N3/023; F01N9/00
Domestic Patent References:
WO2005059328A12005-06-30
WO2007000518A22007-01-04
WO2013005849A12013-01-10
Foreign References:
EP1832727A22007-09-12
JP2011069374A2011-04-07
Attorney, Agent or Firm:
KAWAGUCHI, Yoshiyuki et al. (4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: METHOD FOR PRODUCING HIGH-STRENGTH STAINLESS STEEL PIPE, AND HIGH-STRENGTH STAINLESS STEEL PIPE

Next Patent: GLASS PLATE AIR CONVEYER