Company Filing History:
Years Active: 2003-2011
Title: The Innovative Mind of John Derek Williams
Introduction
John Derek Williams, an accomplished inventor based in New Palestine, IN, has made significant contributions to the field of catalytic diesel particulate filters. With a total of five patents to his name, Williams continues to drive innovative solutions that enhance diesel engine efficiency and reduce emissions.
Latest Patents
Among his latest patents, the most notable is a method for improving the regeneration of a catalytic diesel particulate filter (CDPF). This innovative approach involves a two-phase operation that significantly enhances the cleaning process of the CDPF. During the first phase, when a temperature sensor indicates that the procedure is complete, the exhaust gas's temperature and oxygen content are subsequently increased in the second phase. This method leads to the oxidation of soot accumulated within the filter, restoring approximately 95% of its filtration capacity—an advancement over traditional single-phase regeneration.
Additionally, Williams has developed a method for controlling catalyst and filter temperatures during the regeneration of a CDPF. This system employs a sophisticated weighting/indexing method to assess the accumulated soot's volatility and select appropriate regeneration control strategies. By analyzing the mass of wet and dry soot from previous driving cycles, the system ensures optimal temperature management while protecting the filter from thermal damage.
Career Highlights
John Derek Williams has been a vital part of Delphi Technologies, where his work focuses on enhancing diesel engine technologies. His innovative approaches contribute to developing cleaner and more efficient automotive solutions, reflecting his commitment to advancing ecological sustainability in the automotive industry.
Collaborations
Throughout his career, Williams has collaborated with esteemed colleagues like Tanto Sugiarto and George N. Simopoulos. These partnerships have fostered an environment of creativity and advancement, allowing them to tackle complex challenges in the field of vehicle emissions and engine efficiency.
Conclusion
The work of John Derek Williams exemplifies the spirit of innovation that drives advancements in automotive technology. Through his patents and collaborative efforts, Williams continues to pave the way for cleaner, more efficient diesel engines, demonstrating the importance of inventive minds in creating a sustainable future.