Douglas A Parsons

Title: Innovations of Douglas A Parsons

Introduction

Douglas A Parsons is a notable inventor based in Enfield, Connecticut, with a significant contribution to the field of engineering. He holds five patents, showcasing his expertise and innovative spirit in developing advanced control systems for gas turbine helicopter engines.

Latest Patents

Among his latest patents is a sophisticated engine control system designed for helicopters and similar applications. This system features isochronous control of free turbine speed, achieved through a robust control architecture that enhances bandwidth via loop architecture and filter implementation. The design incorporates dual notch feedback compensation, variable lead positioning, and integrator/proportional implementation. Superior transient control is realized through a multi-loop governing design that utilizes different error compensations based on the control loop status. Additionally, the system employs parallel select logic with dynamic compensation, ensuring effective separation of control loops and selection processes. A torque loop limitation is also integrated, providing a predetermined limit to speed excursions in case of torque signal failures.

Career Highlights

Douglas A Parsons is currently associated with United Technologies Corporation, where he continues to innovate and contribute to advancements in aerospace technology. His work has significantly impacted the efficiency and reliability of helicopter engine control systems.

Collaborations

He has collaborated with notable colleagues, including Mark A Johnston and John E Games, further enhancing the innovative efforts within his team.

Conclusion

Douglas A Parsons exemplifies the spirit of innovation in engineering, particularly in the aerospace sector. His contributions through patents and collaborative efforts continue to shape the future of helicopter engine control systems.