Company Filing History:
Years Active: 2001-2006
Title: Innovations of Christian François Michel Dujarric
Introduction
Christian François Michel Dujarric is an inventive mind based in Paris, France, known for his contributions in the field of aerospace engineering. He holds a total of four patents, showcasing his expertise and innovative potential, particularly in satellite positioning systems and rocket engine technologies.
Latest Patents
Among his most significant inventions is a method for positioning by satellites. This invention features a security-protected system that comprises a constellation of satellites transmitting positioning signals managed by ground stations. The user receiver of these signals is designed to send a request to the ground station for a key needed to interpret the signals. This request is accompanied by a recopy of the received positioning signals. The servicing ground stations process this request, calculate the user's position, verify the user's privileged status, and, if verification is positive, send the key back to the user receiver, enabling interpretation of the positioning signals to determine the user's location.
Another notable invention from Dujarric is related to achieving jet separation of an un-separated flow in a divergent nozzle body of a rocket engine. This patent describes a rocket engine nozzle equipped with a control system designed to manage jet separation within the nozzle. The system includes multiple separation triggering elements arranged strategically to create distinct zones of jet separation from various initiation points, thus facilitating a three-dimensional separation of the flow—an essential element for enhancing rocket engine performance.
Career Highlights
Christian François Michel Dujarric currently works at the European Space Agency, where he applies his expertise in spacecraft technology and propulsion systems. His career has been marked by significant achievements in enhancing satellite navigation and rocket engineering, making substantial contributions to European space missions.
Collaborations
Throughout his career, Dujarric has collaborated with various research institutions and industry leaders in aerospace technology, pooling resources and knowledge to advance satellite positioning systems and rocket engine designs. His work is integral to ongoing advancements in space exploration and technology.
Conclusion
Christian François Michel Dujarric epitomizes the spirit of innovation in aerospace engineering. With his recognized patents and contributions to satellite positioning and rocket engine technologies, he continues to be an influential figure in the advancement of modern space exploration. His work not only showcases individual ingenuity but also highlights the collaborative effort required in this cutting-edge field.