This inventor holds 3 USPTO granted patents. Top assignees: Gm Global Technolgoy Operations, Inc., Electro-Motive Diesel, Inc.. Active years: 2004-2008.
Location History:
- Hinsdale, IL (US) (2004)
- Naperville, IL (US) (2005 - 2008)
Company Filing History:
2 out of 31,869 
1 out of 244 Years Active: 2004-2008
Title: Innovations by Rafiqul Islam in Diesel Engine Technology
Introduction
Rafiqul Islam is a notable inventor based in Naperville, IL (US), recognized for his contributions to the field of internal combustion engines. He holds 3 patents that showcase his innovative approach to reducing emissions in diesel engines. His work is particularly significant in meeting stringent environmental standards while enhancing engine performance.
Latest Patents
One of Rafiqul Islam's latest patents is the "Optimized Low Emission Two-Stroke Internal Combustion Diesel Engine." This invention is designed to meet the EPA locomotive Tier 2 emission standards. To achieve a low emission target below the EPA Tier 2 standards for NO (5.5 g/bhp-hr) and particulates (0.2 g/bhp-hr), several innovative changes have been implemented. These changes include a new piston bowl geometry, low oil consumption piston rings, an optimized surface finish cylinder liner, an optimized fuel injection cam lobe, a modified fuel injector nozzle, a new efficient aftercooler, an optimized oil separator, and an optimized turbocharger.
Another significant patent is the "Emission Reduction Kit for EMD Diesel Engines." This invention involves engine reconfiguration kits developed for NOx emission reduction in Electro-Motive Division of General Motors Corporation model 645 diesel engines. The kits feature improved unit fuel injectors that provide better fuel atomization with retarded injection timing and other enhancements. New higher efficiency four-pass counterflow aftercoolers are included to reduce airbox inlet air temperatures. Optional higher compression ratio pistons are also available for increased fuel efficiency in certain engine types. These kits effectively reduce NOx emissions without increasing smoke, CO, or particulate emissions or compromising performance.
Career Highlights
Rafiqul Islam has worked with prominent companies such as GM Global Technology Operations, Inc. and Electro-Motive Diesel, Inc. His experience in these organizations has allowed him to develop and refine his innovative technologies in diesel engine design and emission reduction.
Collaborations
Rafiqul has collaborated with notable professionals in his field, including Budhadeb Mahakul and Chih L Liu. These collaborations have contributed to the advancement of his projects and the successful implementation of his patented technologies.
Conclusion
Rafiqul Islam's work in diesel engine technology exemplifies innovation aimed at reducing emissions while maintaining performance