Internal-combustion engines – Charge forming device – Heating of combustible mixture
Patent
1997-08-22
1998-10-20
McMahon, Marguerite
Internal-combustion engines
Charge forming device
Heating of combustible mixture
G05D 2300
Patent
active
058231706
ABSTRACT:
An apparatus and method for reducing NOx emissions in diesel engine exhaust air includes a secondary burner engaged within an air intake system of the engine, upstream of an intercooler in the intake system, the secondary burner being actuated during warm temperature operation of the engine to fumigate the intake air with CO.sub.2 thus decreasing NOx output in the exhaust gases. A primary burner disposed between the intercooler and the intake manifold may be selectively operated during cold startup operation of the engine. The apparatus may further include an oxidation catalyst in an exhaust gas line from the engine to eliminate hydrocarbons from the engine exhaust emissions. In an alternative embodiment, the primary burner is eliminated and the intake air from the secondary burner is selectively bypassed around the intercooler to provide cold startup operation.
REFERENCES:
patent: 3760783 (1973-09-01), Frankle
patent: 3996912 (1976-12-01), Dreisin et al.
patent: 4131086 (1978-12-01), Nogucki et al.
patent: 4625910 (1986-12-01), Kawamura
"Installation Instructions for Cold Starting and Warmup Kit . . . " Navistar International Transportation Corp., Form No. 1171699R1, 1996. pp. 2-10.
"Cold Start System Application, Navistar I-6 PLN Diesel Engine" Beru Corporation, Feb. 1996 pp. 1-9.
McMahon Marguerite
Navistar International Transportation Corp.
Sullivan Dennis K.
LandOfFree
Method and apparatus for reducing engine NOx emissions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reducing engine NOx emissions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing engine NOx emissions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-233946