David N. Belton is a prominent inventor based in Birmingham, MI (US), known for his significant contributions to the field of exhaust aftertreatment systems. With a total of 12 patents to his name, Belton has made remarkable advancements in automotive technology, particularly in managing exhaust emissions.

Latest Patents

Among his latest patents is a method and apparatus for managing flow through an exhaust aftertreatment system. This innovative system operates to bypass one or more exhaust purifying devices during deceleration fuel cut-off (DFCO) events, effectively avoiding hydrocarbon purging. The system includes an internal combustion engine and an exhaust purifying system, which consists of a first and a second purifying device. An exhaust gas sensor is employed to monitor the exhaust gas feedstream, while a diverter valve is strategically placed to manage this feedstream, fluidly coupled to an exhaust diversion pipe. The controller detects the engine's operation in a DFCO state and monitors the exhaust gas feedstream via the exhaust sensor, controlling the diverter valve to divert the exhaust gas feedstream away from at least one of the purifying devices during the DFCO event when the exhaust gas feedstream exceeds a certain air/fuel ratio.

Another notable patent is a monitoring system for a single can oxidation catalyst/particulate filter. This system includes a controller with a first temperature sensor input that receives exhaust temperature upstream of the oxidation catalyst portion and a second temperature sensor input that receives exhaust temperature downstream. The controller is designed to calculate the exothermic capacity of the oxidation catalyst portion and determine washcoat deterioration of the particulate filter portion based on this capacity.

Career Highlights

David N. Belton is currently employed at GM Global Technology Operations LLC, where he continues to innovate and develop advanced technologies for the automotive industry. His work focuses on enhancing the efficiency and effectiveness of exhaust aftertreatment systems, contributing to cleaner and more sustainable vehicle operations.

Collaborations

Belton has collaborated with notable colleagues, including Wenbo Wang and Igor Anilovich, who share his commitment to advancing automotive technology and reducing emissions.

Conclusion

David N. Belton's contributions to the field of exhaust aftertreatment systems exemplify his dedication to innovation and sustainability in the automotive industry. His patents reflect a deep understanding of engineering principles and a commitment to improving environmental

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