This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Saudi Arabian Oil Company. Active years: 2026.
Company Filing History:
Years Active: 2026
Title: Mark Sellnau: Innovator in Engine Technology
Introduction
Mark Sellnau is a notable inventor based in Houston, TX (US). He has made significant contributions to engine technology, particularly with his innovative patent that enhances engine operation modes. His work reflects a deep understanding of mechanical engineering and control systems.
Latest Patents
Mark Sellnau holds a patent for a "Method to perform rebreathe mode transitions." This invention involves an engine that includes various components such as pistons, a crankshaft, cylinders, an intake manifold, an exhaust manifold, intake valves, exhaust valves, a fuel rail, and an Electronic Control Unit (ECU). The ECU coordinates the operations of the intake and exhaust valves, as well as the fuel injectors, based on the crankshaft's position. This allows the engine to operate in two distinct modes: a typical engine operating mode and a rebreathe engine operating mode. In the typical mode, the ECU actuates the exhaust valves after the intake valves. Conversely, in the rebreathe mode, the exhaust valves are actuated both during and after the intake valves. Additionally, the ECU adjusts the Start of Injection (SOI) of the fuel injectors, retarding it during the typical mode and advancing it during the rebreathe mode. This innovation has the potential to improve engine efficiency and performance.
Career Highlights
Throughout his career, Mark Sellnau has worked with prominent companies in the industry. He has been associated with the Saudi Arabian Oil Company and Delphi Technologies Holding S.arl. His experience in these organizations has contributed to his expertise in engine technology and innovation.
Collaborations
Mark has collaborated with talented individuals such as Christopher E. Whitney and Praveen Kumar. These partnerships have likely fostered a creative environment that encourages the development of groundbreaking technologies.
Conclusion
Mark Sellnau's contributions to engine technology through his innovative patent demonstrate his commitment to advancing mechanical engineering. His work not only showcases his technical skills but also highlights the importance of innovation in the automotive industry.