Lennart N Johansson

Title: **Innovative Contributions of Lennart N Johansson**

Introduction

Lennart N Johansson, located in Ann Arbor, MI, is an accomplished inventor with an impressive portfolio featuring six patents. His work primarily focuses on advancements in hydrogen production and energy efficiency, showcasing his commitment to fostering innovative solutions in the field of sustainable energy.

Latest Patents

Johansson has recently developed notable patents that highlight his inventive prowess. One of his latest innovations is an "On-board hydrogen gas production system for Stirling engines." This ingenious system generates hydrogen working gas, which is periodically supplied to Stirling engines, ensuring optimal operation even when working fluid is depleted. The production of hydrogen can be achieved through various methods, such as electrolysis, and the storage utilizes materials like metal hydride. By modulating the temperature of the absorbing material, Johansson’s system can deliver hydrogen as needed, enhancing the efficiency of Stirling engines.

Another significant invention from Johansson is the "Exhaust gas alternator system." This technology integrates a Stirling engine with a diesel-powered motor vehicle, utilizing waste heat from the diesel engine’s exhaust to drive an electrical alternator. The setup includes a cooler that receives liquid engine coolant, and an auxiliary diesel fuel burner that provides heat input when the diesel engine is not in operation. This innovative system can also be employed in exhaust circuits featuring catalytic converters, underscoring its versatility.

Career Highlights

Throughout his career, Lennart N Johansson has worked with various entities, most notably at Stm Power, Inc. and Stm, Inc. His experience in these companies has significantly contributed to the development and commercialization of his inventive projects, leading to advancements in clean energy technologies.

Collaborations

Collaboration has been a cornerstone of Johansson's career. He has worked alongside notable colleagues such as William H Houtman and Stephen C Matthews, fostering a creative environment that has led to several successful innovations. Their combined expertise has undoubtedly enriched the projects they undertook together, reinforcing the impact of teamwork in the innovatory process.

Conclusion

Lennart N Johansson’s contributions to the field of energy innovation are significant and inspiring. With a robust portfolio of patents and a dedication to developing efficient energy solutions, he continues to impact sustainable technologies positively. His work not only highlights the importance of innovation in addressing energy challenges but also encourages future inventors to advance the field further.