This inventor holds 1 USPTO granted patent. Top assignee: Imo Delaval Incorporated. Active years: 1988.
Company Filing History:
Years Active: 1988
Title: Innovations of Arasu Rajaratnam
Introduction
Arasu Rajaratnam is an accomplished inventor based in Neshaminy Valley, PA (US). He has made significant contributions to the field of engineering, particularly in the design of high-energy centrifugal pumps. His innovative approach has led to the development of a unique sealing arrangement that enhances the performance of these pumps.
Latest Patents
Arasu holds one patent for his invention titled "Anti-shuttle pump." This patent describes a sealing arrangement designed for use in high-energy centrifugal pumps. The invention features a chamber defined around the discharge portion of the pump wheel, which is attached to a shaft to form a rotor. This rotor rotates with respect to stationary parts and has limited axial movement determined by the thrust bearing clearance. An annular seal is positioned around the outside diameter of the pump wheel, allowing sufficient clearance for the wheel to clear the seal regardless of its axial movement. The seal effectively retards shock waves caused by transient pressure differentials across the wheel and operates to define a dashpot arrangement. In this arrangement, the wheel acts as a piston that automatically equalizes any pressure differential developed across the wheel while bypassing the seal.
Career Highlights
Arasu Rajaratnam is currently employed at Imo Delaval Incorporated, where he continues to apply his expertise in pump technology. His work has been instrumental in advancing the efficiency and reliability of centrifugal pumps used in various industrial applications.
Collaborations
Throughout his career, Arasu has collaborated with notable colleagues, including Firm L Weaver and Alan Gertz. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Arasu Rajaratnam's contributions to the field of pump technology exemplify the spirit of innovation. His patented anti-shuttle pump design showcases his ability to solve complex engineering challenges. His work continues to impact the industry positively, demonstrating the importance of inventive thinking in engineering.