Mark S Piercey

Title: Mark S. Piercey: Innovator in Electric Propulsion Technology

Introduction

Mark S. Piercey is a notable inventor based in Framingham, MA (US). He has made significant contributions to the field of electric propulsion, particularly for marine vehicles. His innovative designs aim to enhance the efficiency and performance of electric motors in challenging environments.

Latest Patents

Mark S. Piercey holds a patent for an "Electric propulsion motor for marine vehicles." This advanced motor features an axial gap design with a disk-shaped rotor and two disk-shaped stators. A sound isolation coupling is strategically placed between two annular plates that connect the rotor to the propeller shaft. The design incorporates circumferential thrust bearings that effectively counter and distribute electrical and mechanical forces, ensuring the rotor's position relative to the stators is maintained. Additionally, a journal bearing supports the rotor, while noise reduction is significantly improved through staggered stators, skewed stator slots, skewed field poles, and a current control system that compensates for torque perturbations based on shaft angle. This innovative approach enhances the overall performance of marine propulsion systems.

Career Highlights

Mark S. Piercey is currently employed at Newport News Shipbuilding and Dry Dock Company. His work there focuses on developing cutting-edge technologies that improve marine vehicle performance. His expertise in electric propulsion systems has positioned him as a key player in the industry.

Collaborations

Throughout his career, Mark has collaborated with talented individuals such as Thomas B. Dade and Kenneth W. Leiding. These partnerships have fostered innovation and contributed to the advancement of electric propulsion technologies.

Conclusion

Mark S. Piercey is a pioneering inventor whose work in electric propulsion technology is making waves in the marine industry. His innovative designs and patents reflect a commitment to enhancing the efficiency and performance of marine vehicles.