Company Filing History:
2 out of 514 
2 out of 180 
1 out of 212 Years Active: 1985-2011
Title: The Innovative Contributions of Jacques Raynaud
Introduction
Jacques Raynaud is a notable inventor based in Savigny sur Orge, France. He has made significant contributions to the field of propulsion technology, holding a total of five patents. His work primarily focuses on advanced ramjet engines and propulsion units, showcasing his expertise in aerospace engineering.
Latest Patents
Raynaud's latest patents include a ramjet engine that incorporates a tubular structure and a missile propelled by such ramjet engines. This innovative ramjet engine features a combustion chamber that ends in a gas injection nozzle, along with a cruising propulsion unit that feeds liquid propellant into the combustion chamber. The design includes a rigid tubular element that divides the interior volume into two spaces, one housing the cruising propulsion unit and the other the combustion chamber. Additionally, passages in the intermediate partition allow for the feeding of liquid fuel into the combustion chamber, while an air duct is mounted on the tubular element to supply combustion air.
Another significant patent is for a nozzleless propulsion unit of low aspect ratio. This propulsion unit is designed for accelerating self-propelled vehicles, such as missiles or rockets. It features a propellant block secured laterally to the body of the propulsion unit and has an aspect ratio between 2.5 and 6. The propellant block includes an axial duct and at least six peripheral ducts, with a fitting that creates a free space between the upstream face of the propellant block and the body of the propulsion unit. This innovative design allows combustion gases to be ejected rearward without the need for a nozzle, achieving sonic velocity downstream of the ducts.
Career Highlights
Throughout his career, Jacques Raynaud has worked with prominent companies in the aerospace sector, including Aerospatiale Société Nationale Industrielle and Société Nationale Industrielle et Aérospatiale. His experience in these organizations has contributed to his development as a leading inventor in propulsion technology.
Collaborations
Raynaud has collaborated with notable colleagues such as Jean Guillot and Pascal Herquel, further enhancing his innovative work in the field.
Conclusion
Jacques Raynaud's contributions to propulsion technology through his patents and collaborations highlight his significant role as an inventor. His innovative designs continue to influence advancements in aerospace engineering.