Norman F Spear

Title: Innovations by Norman F Spear

Introduction

Norman F Spear is an accomplished inventor based in Edina, MN (US). He has made significant contributions to the field of refrigeration and internal combustion engine technology. With a total of 2 patents, his work reflects a commitment to enhancing efficiency and performance in transport refrigeration systems.

Latest Patents

One of his latest patents is a method of starting and running an internal combustion engine connected to drive a refrigerant compressor in a refrigeration system. This innovative method operates the engine at predetermined first and second speeds in response to a control algorithm, ensuring optimal performance. The first speed is lower than the second speed, and the method includes starting the engine at the first speed while preventing switching to the second speed during an initial dynamic delay period. This delay is determined based on at least one predetermined parameter of the engine.

Another notable patent is a method of operating a transport refrigeration system. This method effectively monitors the system regardless of the temperature of the served space relative to a selected set point temperature. It provides different 'windows' of acceptable and marginal performance based on the algebraic difference between return and discharge air temperatures. This monitoring occurs at all times, including during cooling and hot gas heating modes, allowing for early warnings and shutdowns for unacceptable performance.

Career Highlights

Norman F Spear is currently associated with Thermo King Corporation, where he applies his expertise in refrigeration technology. His work has been instrumental in developing advanced systems that enhance the efficiency and reliability of transport refrigeration.

Collaborations

Throughout his career, Norman has collaborated with notable colleagues, including Jay L Hanson and Lowell B Naley. These partnerships have contributed to the innovative solutions he has developed in the field.

Conclusion

Norman F Spear's contributions to the field of refrigeration and internal combustion engine technology demonstrate his innovative spirit and dedication to improving system performance. His patents reflect a deep understanding of engineering principles and a commitment to advancing technology in practical applications.