Title:
排気再循環を行う内燃エンジンのための方法
Document Type and Number:
Japanese Patent JP5491028
Kind Code:
B2
Abstract:
A method is provided for maintaining the heat in an exhaust after treatment system connected to the exhaust pipe of an internal combustion engine. The engine is used to propel a vehicle and is equipped with a valve-controlled EGR duct for the adjustable recirculation of exhaust gases from the exhaust side of the engine to its induction side. According to the invention, it is detected that neither the braking system nor the throttle control mechanism of the vehicle is activated and that the vehicle is being driven at a speed in excess of a predetermined value. After this, the gas flow through the EGR duct is regulated so that the gas flow to the exhaust aftertreatment system is reduced to a level which is less than about 50% of the gas flow to the exhaust aftertreatment system with shut-off EGR valve.
Inventors:
Alum, Christel
Bernrel, hans
Bernrel, hans
Application Number:
JP2008531045A
Publication Date:
May 14, 2014
Filing Date:
September 15, 2005
Export Citation:
Assignee:
Volvo Last Bagner Arbe
International Classes:
F02D21/08; F02D9/04; F02D23/00; F02M25/07
Domestic Patent References:
| JP2004523691A | ||||
| JP200427956A | ||||
| JP1130144A | ||||
| JP6173740A | ||||
| JP532869U | ||||
| JP5133285A |
Attorney, Agent or Firm:
Kazuo Shigenobu
Hideo Shimizu
Yuichi Takagi
Ryoichi Mizobuchi
Masayuki Ogura
Hideki Akiba
Taeko Katata
Hideo Shimizu
Yuichi Takagi
Ryoichi Mizobuchi
Masayuki Ogura
Hideki Akiba
Taeko Katata