Reduction of Exhaust Emission with New Water Injection System in a Diesel Engine

960033

02/01/1996

Event
International Congress & Exposition
Authors Abstract
Content
In this study a new water injection system was applied to an 11 liter naturally aspirated DI diesel engine in order to reduce exhaust emissions. In this system, the water and fuel were arranged in the injection nozzle during the time between injections as fuel, water and then fuel. The fuel and water were then injected into the cylinder in that order. The tests were conducted at several engine operating conditions from the Japanese 13 mode test cycle to clarify effects of water injection on exhaust emissions and fuel consumption. The results showed that NOx reduction was directly proportional to the relative amount of water injection, regardless of engine speed and load. By using the optimal relative amount of water injection at each engine operating condition, total NOx and particulate matter (PM) in the Japanese 13 mode test cycle were reduced by 50% and 25%, respectively, without a fuel consumption penalty.
Meta TagsDetails
DOI
https://doi.org/10.4271/960033
Pages
10
Citation
Kohketsu, S., Mori, K., Sakai, K., and Nakagawa, H., "Reduction of Exhaust Emission with New Water Injection System in a Diesel Engine," SAE Technical Paper 960033, 1996, https://doi.org/10.4271/960033.
Additional Details
Publisher
Published
Feb 1, 1996
Product Code
960033
Content Type
Technical Paper
Language
English