Influence of Engine Parameters on Exhaust Odor in DI Diesel Engines Kitami Institute of Technology

Format:

Book

Conference/Event

Author/Creator:

Tsunemoto, Hideyuki, author.

Conference Name:

CEC/SAE Spring Fuels & Lubricants Meeting & Exposition (2000-06-19 : Paris, France)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

Direct injection diesel engines emit a far more disagreeable exhaust odor at idling than gasoline engines, and with increasing numbers of DI diesel engines in passenger cars, it is important to promote the odor reduction research. High pressure injection in DI diesel engines promotes combustion and decreases particulate matter (PM) emissions, but injection pressures at idling and warm up are limited to 3040 MPa considering engine noise and vibration. In this pressure range, a part of the fuel adheres on the relatively cool combustion chamber walls and causes incomplete combustion, producing higher concentration of unburned HC and intermediate combustion components (aldehydes, other oxygenated compounds, et cetera) with objectionable exhaust odors. To reduce the exhaust odor, oxidation catalysts are effective, but catalyst activity is poor at idling, when the exhaust gas temperature is low (about 100°C).This study investigated the effects of combustion chamber shapes, fuel injection parameters, and compression ratios on the exhaust odor. The influence of the change in spray behavior caused by the changes in engine specifications on the odor formation is also discussed

Notes:

Vendor supplied data

Publisher Number:

2000-01-1935

Access Restriction:

Restricted for use by site license