This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Modulation of Injection Rate to Improve Direct Injection Diesel Engine Noise
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1990 by SAE International in United States
Annotation ability available
The optimum modulation of fuel injection has been investigated by applying fuel injection research tools to several direct injection diesel engines. These studies provided insight into the fuel injection and combustion processes which has assisted the evaluation of the currently available practical devices.
Two stage lift devices have been developed to reduce combustion noise at idle, light load and low speed engine operating conditions. However, once these devices enter their second stage of lift, the combustion noise increases rapidly. Two pilot injection devices have been tested in two high speed direct injection (HSDI) engines on test beds and both have reduced combustion noise over a wide speed range. When run in a vehicle, they have been particularly effective in reducing “acceleration noise” which can be very obtrusive in cars and light commercial vehicles fitted with high speed direct injection engines.
CitationRussell, M., Young, C., and Nicol, S., "Modulation of Injection Rate to Improve Direct Injection Diesel Engine Noise," SAE Technical Paper 900349, 1990, https://doi.org/10.4271/900349.
- Russell M F Cavanagh E J “Establishing a Target for Control of Diesel Combustion Noise” SAE paper 790271 Proc Diesel Engine Noise Conference (P80) Soc Auto Engrs Congress Detroit Feb 1979
- Russell M F Haworth R “Combustion Noise from High Speed Direct Injection Diesel Engines SAE paper 850973 Proc Surface Vehicle Noise and Vibration Conference (P161) Soc Auto Engrs Conference Traverse City Mich May 15-17 1985
- Greeves G Khan I M Wang C H T Fenne I “Origins of Hydrocarbon Emissions for Diesel Engines” SAE paper 770259 Soc Auto Engrs Congress Detroit Feb 1977
- Khan I M Greeves G Probert D M “Prediction of Soot and Nitric Oxide Concentrations in Diesel Engine Exhaust” Proc I Mech E Conf C142/71 Air Pollution Control in Transport Engines 205 217
- Greeves G Wang C H T “Origins of Diesel Particulate Mass Emission” SAE paper 810260 Soc Auto Eng Congress Detroit Feb 1981
- Meyer K P “Fuel Economy, Emissions and Noise of Multi-spray Light Duty D I Diesels - Current Status and Development Trends” I. Mech. E. Paper C421/84 “VECON '84” Conference Contribution 68 London Oct 1984
- Brandl F K Affenzeller J Thien G E “Some Strategies to Meet Future Noise Regulations for Truck Engines” SAE Paper 870950 Soc Auto Engrs Noise and Vibration Conf. Traverse City April 1987