Donald George Witzel

Title: Donald George Witzel: Innovator in Engine Control Technology

Introduction

Donald George Witzel is a notable inventor based in Pittsford, NY, with a remarkable portfolio of five patents. His innovative contributions primarily focus on enhancing engine control mechanisms, specifically for small engines. With an engineering background steeped in practical applications, Witzel has demonstrated a commitment to improving engine efficiency and usability in various segments.

Latest Patents

One of his latest patents is a throttle control system designed for small engines. This invention defines a speed control apparatus that incorporates a poppet valve seat and a poppet valve pintle assembly. This assembly is strategically disposed coaxially to modulate the flow of air into the engine through the valve seat. The pivotal innovation utilizes a stepper motor actuator, which is responsive to both an engine speed sensor and an electronic controller. This setup allows for the axial positioning of the pintle in alignment with a programmed algorithm to achieve any desired engine speed. Particularly, it excels in maintaining a fixed engine speed across varied loads, effectively eliminating traditional governors, rotary mechanical throttles, and mechanical linkages. This invention proves to be particularly beneficial for powering portable electric generators, yard equipment, and outboard motors.

Career Highlights

Throughout his career, Witzel has been associated with notable companies, including Delphi Technologies, Inc. His experience in these organizations has propelled his understanding and capability in the field of engine technology and innovation, contributing to the advancement of modern engine control systems.

Collaborations

Witzel's work has often involved collaboration with talented peers, including Robert David Garrick and David M. Evans. These partnerships have enhanced the development of his inventions and testified to the spirit of innovation that drives progress in this technological arena.

Conclusion

Donald George Witzel stands as a significant figure in the realm of engine control innovation. His patents reflect a forward-thinking approach to engineering challenges, particularly in small engine applications. As advancements in technology continue to evolve, Witzel's contributions are sure to influence the future of engine management systems, offering enhanced performance and efficiency for various applications.