J Norman MacLeod

Title: J Norman MacLeod: Innovator in Internal Combustion Engine Technology

Introduction

J Norman MacLeod is a notable inventor based in Jacksonville, FL (US). He has made significant contributions to the field of internal combustion engine technology, holding a total of 3 patents. His innovative work focuses on enhancing engine performance and reliability through advanced ignition systems.

Latest Patents

One of MacLeod's latest patents is for an internal combustion engine with temperature-dependent timing of spark. This invention features a magneto-based, variable-timing ignition system that maintains engine parameters within predetermined limits. An electronic controller adjusts the timing of spark events based on critical performance criteria, such as the temperature of the engine's cylinder head, speed, and manifold pressure. If any parameter exceeds its limit, the controller retards the spark timing to bring it back within acceptable ranges. Additionally, the system ensures that if electronic control fails, spark events can still be synchronized with the mechanical rotation of the crankshaft.

Another significant patent by MacLeod is a magneto-based ignition system for reciprocating internal combustion engines. This invention includes a capacitative discharge device designed to enhance the starting performance of the ignition system. While primarily intended for aerospace applications, its compact size and lightweight design make it suitable for various portable applications.

Career Highlights

MacLeod is currently associated with Unison Industries Limited Partnership, where he continues to innovate in the field of engine technology. His work has been instrumental in developing systems that improve engine efficiency and reliability.

Collaborations

Throughout his career, MacLeod has collaborated with notable colleagues, including Bradley D Mottier and Dean Mechlowitz. These partnerships have contributed to the advancement of his innovative projects.

Conclusion

J Norman MacLeod's contributions to internal combustion engine technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of engine performance and a drive to enhance the functionality of ignition systems.