Robert A Marshall

Title: **Innovations of Robert A. Marshall: Pioneering Patents from Schenectady, NY**

Introduction

Robert A. Marshall, an inventive engineer based in Schenectady, NY, has made significant contributions to the field of engineering through his innovative solutions. With a total of four patents to his name, his work primarily focuses on enhancing the functionality and efficiency of turbomachinery and electrical machines. Marshall's inventions demonstrate his expertise and commitment to advancing technology in practical applications.

Latest Patents

Marshall's latest patents showcase his ingenuity in addressing complex engineering challenges. One of his noteworthy inventions is the "Low Collapse Speed Lube Oil Pumping System for Turbomachinery." This self-priming lubricating oil pumping system operates directly from the turbine main shaft, featuring a permanent magnet generator that produces electrical output. This innovative setup allows for a direct connection to an induction motor, eliminating the need for protective devices. The positive displacement pump ensures that oil is delivered at optimal flow rate and pressure across all operating phases, thereby maintaining turbine performance.

Another significant invention is the "Permeable Mesh Current Collector for DC Machines." This current collector integrates a rotor collector ring with a compliant brush made from a liquid metal-permeable material, forming a thin liquid metal film that facilitates sliding contact. This design ensures a reliable electrical connection between the rotor and stator collector rings, with a pumping mechanism to maintain adequate liquid metal supply, showing Marshall's ability to blend creativity with technical requirements for enhanced efficiency in electrical machines.

Career Highlights

Robert A. Marshall is a valued engineer at General Electric Company, where he leverages his expertise to develop innovative technologies that push the boundaries of engineering capabilities. His experience and contributions to the field highlight the importance of research and development in creating solutions that improve operational efficiency in various applications.

Collaborations

Throughout his career at General Electric, Marshall has collaborated with talented professionals, including his coworker Jens Kure-Jensen. These collaborations have fostered a dynamic environment that encourages innovation and the exchange of ideas, ultimately leading to the development of groundbreaking technologies.

Conclusion

Robert A. Marshall's inventive spirit and dedication to engineering excellence have led to the creation of several significant patents that contribute to advancements in turbomachinery and electrical machine technology. His work embodies the intersection of creativity and engineering, making a lasting impact on the industry. As he continues to pursue innovative solutions, Marshall's contributions will undoubtedly inspire future generations of inventors and engineers.