Donald Lee McCaw

Title: The Innovations of Donald Lee McCaw

Introduction

Donald Lee McCaw, a notable inventor based in Dike, Iowa, has made significant contributions to engine control technology. With a total of two patents to his name, McCaw has demonstrated a commitment to advancing automotive engineering and reducing emissions through innovative solutions.

Latest Patents

McCaw's latest inventions include a **control system and method for turbocharged throttled engines** and a **system and method for controlling emissions variability in engines**.

The first patent features a control system that regulates a turbocharged throttled engine. This system includes a throttle situated between the compressor and the engine, along with a wastegate that communicates with exhaust upstream and downstream from the turbine. The control unit of this system generates a desired air mass value per engine stroke based on the required fuel flow and a stored compressor surge characteristic. It ensures that the actual manifold air pressure mirrors the desired value while also managing boost pressure to maximize engine efficiency.

The second patent focuses on reducing emissions variability by controlling engine parameters in response to sensed nitrogen oxides (NOx) concentrations in exhaust gases. The system modifies engine control set points based on real-time NOx data, employing a strategy that incorporates engine RPM and manifold absolute pressure to optimize emissions performance.

Career Highlights

McCaw is currently associated with Deere & Company, where he applies his expertise in engine technology. His role at the company has allowed him to work on cutting-edge innovations that directly influence the future of engine performance and environmental sustainability.

Collaborations

During his career, McCaw has collaborated with talented individuals like Daniel James Podnar and John Thomas Kubesh. Their combined efforts reflect a commitment to innovation and excellence within the company, driving advancements in engine technology.

Conclusion

Donald Lee McCaw's contributions to the field of engine control technology through his patents showcase his inventive spirit and dedication to improving automotive performance and reducing emissions. His work at Deere & Company and collaborations with fellow inventors underline the importance of teamwork and innovation in addressing the challenges faced by the automotive industry today.