John R Hiemstra

Title: The Innovations of John R Hiemstra

Introduction

John R Hiemstra is a notable inventor based in Apple Valley, MN (US). He has made significant contributions to the field of engineering, particularly in the area of diesel particulate filter regeneration. With a total of 8 patents to his name, Hiemstra's work has had a considerable impact on improving auxiliary power unit systems.

Latest Patents

One of Hiemstra's latest patents is a system and method for regenerating an auxiliary power unit exhaust filter. This innovation relates to a method for controlling a system that regenerates a diesel particulate filter. The method includes monitoring the engine run time that has lapsed since a previous regeneration event. Additionally, it involves monitoring backpressure behind the diesel particulate filter. A regeneration flag is triggered if the engine run time reaches a predetermined time limit and the backpressure exceeds a minimum value. This patent showcases Hiemstra's commitment to enhancing environmental efficiency in diesel engines.

Career Highlights

Throughout his career, John R Hiemstra has worked with prominent companies such as Donaldson Company, Inc. and Thermo King Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in the industry.

Collaborations

Some of Hiemstra's notable coworkers include Wayne M Wagner and Eivind Stenersen. Their collaboration has likely fostered an environment of creativity and innovation, further enhancing the quality of their work.

Conclusion

John R Hiemstra's contributions to the field of engineering and his innovative patents demonstrate his dedication to improving diesel engine technology. His work continues to influence the industry and pave the way for future advancements.