Marc A Declerco

Title: The Innovative Contributions of Marc A Declerco

Introduction

Marc A Declerco is a notable inventor based in Pelissanne, France. He has made significant contributions to the field of aerospace engineering, particularly in the development of advanced propeller technologies. With a total of four patents to his name, Declerco's work has had a lasting impact on helicopter design and functionality.

Latest Patents

One of Declerco's latest patents is a process for manufacturing a variable pitch multi-blade propeller. This innovative propeller is designed for use on helicopters and is constructed from a foam preform that is joined with a fibrous spar, all enclosed in resin-impregnated foils and fitted with a metal leading edge. The assembly process involves various components being placed in a mold, followed by the curing of the resins. Additionally, the structure may include a reinforcing yoke made of carbon fiber fabrics that are preimpregnated with a polymerizable synthetic resin. A heat treating step is also included to facilitate polymerization.

Another significant patent by Declerco involves a variable-pitch multi-blade propeller that incorporates individually controlled blades. Each blade is fixed to the hub by the root part of the spar, which is arranged in a loop surrounding a connection element bolted onto the hub. This design features rigid rings and a pin that simultaneously fix the hub onto a drive sleeve, transmitting the driving torque from the central shaft. The hub is designed with two coaxial cylindrical walls, each containing a circular opening for the angle of attack control member, which is mounted to rotate via self-lubricating rings. This invention is particularly applicable to helicopters, enhancing their performance and efficiency.

Career Highlights

Throughout his career, Marc A Declerco has worked with prominent companies in the aerospace sector, including Société Nationale Industrielle Aérospatiale and Société Nationale Industrielle et Aérospatiale. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in aviation technology.

Collaborations

Declerco has collaborated with esteemed colleagues such as René L Mouille and Jean-Pierre Jalaguier. These partnerships have fostered a creative environment that has led to innovative solutions in the aerospace industry.

Conclusion

Marc A Declerco's contributions to the field of aerospace engineering, particularly in the development of variable