Device for purifying the exhaust gases of diesel engines

Details Device for purifying the exhaust gases of diesel engines Device for purifying the exhaust gases of diesel engines

2008-01-08

2008-01-08

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S295000, C060S311000, C060S324000

Reexamination Certificate

active

07316107

ABSTRACT:
In a diesel engine provided with a diesel particulate filter81and an exhaust throttle valve9, noise is decreased that is produced when the exhaust throttle valve is returned back to the fully opened state after a diesel particulate filter81has been regenerated by oxidizing and removing the particulate matter deposited thereon. The exhaust system of the diesel engine is equipped with the diesel particulate filter81and a catalyst82on the upstream thereof, and is further equipped with the exhaust throttle valve9on the downstream. The diesel particulate filter81is regenerated by operating the diesel engine in a state where the exhaust throttle valve9is opened to a small degree. When the regeneration has finished, the diesel engine is run at a decreased rotational speed and, thereafter, the exhaust throttle valve9is returned back to the fully opened state. When the engine is run at a decreased rotational speed, the pressure in the exhaust system decreases making it possible to greatly decrease the noise that generates at the time of the opening of the exhaust throttle valve9.

REFERENCES:
patent: 4835964 (1989-06-01), Kume et al.
patent: 5097665 (1992-03-01), Kammel
patent: 5655366 (1997-08-01), Kawamura
patent: 5930995 (1999-08-01), Watanabe et al.
patent: 6367245 (2002-04-01), Yasui et al.
patent: 6598387 (2003-07-01), Carberry et al.
patent: 6802180 (2004-10-01), Gabe et al.
patent: 6817172 (2004-11-01), Tamura
patent: 6817174 (2004-11-01), Igarashi et al.
patent: 6877312 (2005-04-01), Nakatani et al.
patent: 6892531 (2005-05-01), Rim
patent: 6901751 (2005-06-01), Bunting et al.
patent: 6966179 (2005-11-01), Onodera et al.
patent: 7104050 (2006-09-01), Sato et al.
patent: 2004/0194450 (2004-10-01), Tanaka et al.
patent: 0 445 567 (1991-09-01), None
patent: 5-44436 (1993-02-01), None
patent: 2001-336433 (2001-12-01), None
patent: 2003-343287 (2003-12-01), None

Affiliated with

Also associated with

Rating

Device for purifying the exhaust gases of diesel engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for purifying the exhaust gases of diesel engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for purifying the exhaust gases of diesel engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2766347