Location History:
- Paris, FR (1987)
- Chennevieres sur Marne, FR (1988)
- Chennevieres, FR (1994)
Company Filing History:
Years Active: 1987-1994
Title: The Innovative Contributions of Philippe J Lefebvre
Introduction
Philippe J Lefebvre is a notable inventor based in Chennevieres, France. He has made significant contributions to the field of gas turbine technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and performance of turbomachinery.
Latest Patents
One of his latest patents is a guide vane with a plurality of cooling circuits. This invention is designed for use in gas turbine engines and features multiple separate cooling circuits that guide a cooling fluid through the interior of the vane. The design minimizes the pressure drop of the cooling fluid as it passes through the vane, ensuring optimal performance. Each cooling circuit includes a cooling fluid inlet, a cooling fluid outlet, a cavity, and a chamber in fluid communication with the cavity. The mounting bases attached at either end of the vane define these chambers and cooling fluid inlets.
Another significant patent is a labyrinth seal adjustment device for incorporation in a turbomachine. This device allows for the adjustment of clearances during assembly and operation of a labyrinth seal between the rotor and stator of a turbomachine. The adjustments are made through radial displacements of a bush that is rigidly connected to an outer pivot pin of each blade of the stator. These displacements are controlled by a computer that integrates various operational parameters of the turbomachine.
Career Highlights
Philippe J Lefebvre is associated with the Société Nationale d'Étude et de Construction de Moteurs d'Aviation, where he has contributed to various innovative projects. His expertise in turbomachinery has positioned him as a key figure in the development of advanced gas turbine technologies.
Collaborations
He has worked alongside notable colleagues such as Anne E Bourguignon and Jacques A Boury, contributing to a collaborative environment that fosters innovation and technological advancement.
Conclusion
Philippe J Lefebvre's contributions to the field of gas turbine technology through his patents and collaborative efforts highlight his role as a significant inventor. His work continues to influence advancements in turbomachinery, showcasing the importance of innovation in engineering.