Vlad L C Ulmet

Title: Innovations by Vlad L C Ulmet in Diesel Engine Technology

Introduction

Vlad L C Ulmet is an accomplished inventor based in San Antonio, TX (US). He has made significant contributions to the field of diesel engine technology, holding 2 patents that focus on improving engine performance and reducing emissions. His work is particularly relevant in today's context of environmental sustainability and efficiency in automotive engineering.

Latest Patents

Ulmet's latest patents include innovative methods for enhancing diesel engine operation. The first patent, titled "Diesel engine operation for fast transient response and low emissions," outlines a method for controlling emissions in the exhaust gas of a diesel engine equipped with an exhaust gas recirculation (EGR) system. This invention allows the engine to operate with a lean air-fuel ratio under normal conditions while effectively reducing engine-out NOx emissions. During transient load increases, the engine operates stoichiometrically, temporarily interrupting the use of EGR to optimize performance.

The second patent, "Passive NOx and PM aftertreatment for diesel engine," describes a method of reducing emissions by maintaining a stoichiometric air-fuel ratio. This approach utilizes intake throttling, boost air intake control, fuel injection adjustments, and EGR to achieve optimal performance. The aftertreatment system designed for this mode requires only an oxidation catalyst and a particulate filter, simplifying the emissions control process.

Career Highlights

Vlad L C Ulmet is currently employed at the Southwest Research Institute, where he continues to innovate in the field of diesel engine technology. His work has garnered attention for its practical applications and potential to significantly reduce harmful emissions from diesel engines.

Collaborations

Throughout his career, Ulmet has collaborated with notable colleagues, including Stefan Simescu and Magdi K Khair. These partnerships have contributed to the advancement of research and development in diesel engine technologies.

Conclusion

Vlad L C Ulmet's contributions to diesel engine technology through his innovative patents demonstrate his commitment to improving engine efficiency and reducing emissions. His work is vital in addressing the challenges of modern automotive engineering and environmental sustainability.