Ralf Kriegel

Title: Ralf Kriegel: Innovator in Hydrogen Circulation Engine Technology

Introduction

Ralf Kriegel is a notable inventor based in Kahla, Germany. He has made significant contributions to the field of combustion engines, particularly focusing on hydrogen-operated systems. With a total of 5 patents, his work emphasizes innovative methods for enhancing energy efficiency in combustion processes.

Latest Patents

Kriegel's latest patents include a method for process-integrated oxygen supply of a hydrogen circulation engine. This method involves the recirculation of a noble gas to supply hydrogen-operated internal combustion engines with oxygen. The invention aims to provide an economical local supply of pure oxygen for a closed-cycle hydrogen engine using argon cycling. It achieves this by separating oxygen from the atmosphere without relying on the engine's useful work. The process utilizes OSM ceramics and exhaust gas heat to generate oxygen, employing two reactors alternately purged with exhaust gas and regenerated with air. This innovative approach avoids losses of inert gases and atmospheric nitrogen by using steam for intermediate purging.

Another significant patent by Kriegel relates to an arrangement and process for carrying out intensified combustion. This invention addresses the challenge of supplying oxygen to the combustion space of a self-compacting combustion engine in an energy-efficient manner. The solution involves the presence of an oxygen storage material in the combustion space, enabling a self-compressing combustion process.

Career Highlights

Throughout his career, Ralf Kriegel has worked with prominent organizations, including the Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. and Reinhardt Beton GmbH. His experience in these companies has contributed to his expertise in combustion technology and innovation.

Collaborations

Kriegel has collaborated with notable individuals in his field, including Robert Kircheisen and Markku Lampinen. These partnerships have likely enriched his research and development efforts, leading to advancements in combustion engine technology.

Conclusion

Ralf Kriegel's innovative work in hydrogen circulation engine technology showcases his commitment to enhancing energy efficiency in combustion processes. His patents reflect a deep understanding of the challenges in this field and offer practical solutions for the future of energy production.