Chad E Marlett

Title: Innovations in Exhaust Aftertreatment: The Patented Work of Chad E. Marlett

Introduction: Chad E. Marlett, an accomplished inventor based in Plymouth, MI, holds an impressive portfolio of 19 patents. His contributions primarily focus on advancements related to exhaust aftertreatment systems, showcasing his commitment to enhancing engine efficiency and environmental sustainability.

Latest Patents: Among his latest innovations is a method and apparatus for monitoring particulate matter in an exhaust gas feedstream. This invention features a particulate filter element coupled with a particulate matter sensor designed to track exhaust gas flow downstream of the filter. The method leverages the sensor to determine the temperature and monitor the engine's operation, allowing for the precise measurement of ammonia levels in the exhaust. By adjusting initial readings from the particulate matter sensor based on the temperature and ammonia magnitude, the monitoring system effectively evaluates the quantity of particulate matter in the exhaust gas.

Another significant patent focuses on controlling engine exhaust backpressure following a cold-start. This method establishes a protocol for managing the warm-up rate of an internal combustion engine by regulating an exhaust pressure modulation valve. By doing so, it enhances the backpressure within the exhaust system, increasing the engine's load and promoting a faster warm-up, which are critical factors in optimizing engine performance.

Career Highlights: Throughout his career, Chad has made substantial contributions while working with prominent companies such as GM Global Technology Operations LLC and Chrysler Group LLC. His expertise in automotive technologies has led to significant innovations that drive improvements in vehicle emissions reduction and engine performance.

Collaborations: Chad has had the privilege of collaborating with esteemed colleagues including Yun Xiao and Kevin J. McKay. Their combined knowledge and experience have contributed to the success of various projects aimed at advancing vehicle technology and reducing environmental impact.

Conclusion: With 19 patents to his name, Chad E. Marlett continues to be a leading figure in the field of exhaust aftertreatment and internal combustion engine technologies. His innovative methods not only address critical issues related to emissions but also pave the way for more efficient and environmentally friendly automotive solutions.