Company Filing History:
Years Active: 1977
Title: Innovations of Jean Lallement
Introduction
Jean Lallement is a notable inventor based in Verrieres-le-Buisson, France. He has made significant contributions to the field of nuclear energy, particularly in the design of sodium-cooled fast reactors. With a total of 2 patents, Lallement's work showcases his expertise and innovative thinking in this specialized area.
Latest Patents
One of Lallement's latest patents is for a liquid sodium cooled fast reactor. This invention involves a set of cylindrical shells that are interposed between the main vessel wall of an integrated sodium-cooled fast reactor and the primary core containment vessel. The design forms a siphon with two downwardly directed branches. One branch opens into the intervessel zone, which is separated from the primary vessel by a shell. The other branch, nearest the main vessel wall, is supplied with part of the cold sodium withdrawn from the intervessel zone by pumps and reinjected into the bottom of the reactor core.
Another significant patent is for a structure aimed at reducing convection currents within the pressure vessel. This invention features a hollow metallic ring structure secured to the periphery of the diagrid support. It is located within an internal annular space formed between the lateral neutron shield of the reactor core and an inner tank placed within a primary vessel. The ring structure is smaller in width than the annular space, has a maximum height equal to that of the reactor core, and is equipped with partition walls and holes to produce pressure drops and reduce convection currents.
Career Highlights
Lallement works at the Commissariat à l'Énergie Atomique, where he has been involved in groundbreaking research and development in nuclear technology. His contributions have been instrumental in advancing the safety and efficiency of nuclear reactors.
Collaborations
Throughout his career, Lallement has collaborated with esteemed colleagues such as Jean-Michel Gama and Lucien Pugnet. These partnerships have fostered innovation and have led to the successful development of various projects in the field of nuclear energy.
Conclusion
Jean Lallement's work exemplifies the spirit of innovation in the nuclear energy sector. His patents reflect a deep understanding of complex engineering challenges and a commitment to advancing technology for safer energy solutions.