Electrostatic Atomizing Fuel Injector for Small Scale Engines
Abstract
"Report developed under STTR contract W911NF-08-C-0107" for topic "A08-T012". The overall objective of this STTR project is to develop electrostatic atomizers for spraying JP-8 fuel in small scale internal combustion engines. This report discusses the efforts of Phase I where it has been demonstrated that the proposed charge injection method can be used for atomization of JP-8. The characteristics of sprays formed with JP-8 are found to be very similar to those of sprays formed with diesel fuel using the same method of atomization, regardless of a difference in electrical conductivity coefficients of these fuels. This important finding allows us to use the extensive previous knowledge on diesel fuel to understand the atomization of JP-8. The above demonstration of JP-8 atomization was based on an existing point-blade charge injector. Further investigation has been conducted in Phase I to improve this design in order to achieve higher specific charges and higher fuel flow rates. One design of the new atomizer was successfully tested and the data presented in this report support the improvement of the spray characteristics. Finally, new concepts have been investigated to apply the method of charge injection in conjunction with a pulse fuel delivery system which is required for internal combustion engines.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 09, 2008
- Accession Number
- ADA501792
Entities
People
- Farzad Mashayek