Title:
熱機関の排気ガスの温度を制御する方法
Document Type and Number:
Japanese Patent JP2010514977
Kind Code:
A
Abstract:
The method involves dividing regeneration phase time into succession of divided periods (t1-t3), alternatively, in high and low hot combustion modes (P, R). Duration of each period is controlled such that excess of energy (S) in the period in the mode (R) is compensated by energy loss (D) in the other period in the mode (P) and vice-versa, to maintain an exhaust gas temperature (T2), at an outlet of a nitrogen-oxide trap type post-treatment unit i.e. oxidation catalyst, near an average temperature corresponding to a set temperature (Ts). A thermal input power (We) carried by the exhaust gas is higher/lower than a set power (Wc) necessary to obtain the temperature (Ts), in the respective high hot and low hot combustion modes.
Inventors:
Baryon, pascal
Poirane, Emmanuel
Govan, Fabrice
Poirane, Emmanuel
Govan, Fabrice
Application Number:
JP2009543456A
Publication Date:
May 06, 2010
Filing Date:
December 21, 2007
Export Citation:
Assignee:
Renault S Ares
International Classes:
F01N3/20; F01N3/24; F01N3/36; F02D41/02; F02D41/04
Domestic Patent References:
| JP2005337039A | 2005-12-08 | |||
| JP2002023861A | 2002-01-25 | |||
| JP2003254038A | 2003-09-10 | |||
| JP2006037742A | 2006-02-09 |
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori
Kobayashi Yoshinori