Company Filing History:
7 out of 10,654 
1 out of 11 Years Active: 1995-2015
Title: The Innovations of Alfred M Stern
Introduction
Alfred M Stern is a notable inventor based in Manchester, Connecticut, who has made significant contributions to the field of aerospace engineering. With a total of seven patents to his name, Stern has focused on developing methods and systems that enhance the performance and efficiency of jet engines. His innovative approaches have garnered attention in the industry and have paved the way for advancements in noise reduction technologies.
Latest Patents
One of Stern's latest patents is a method of using an afterburner to reduce high-velocity jet engine noise. This system involves heating the exhaust gas flow while simultaneously reducing power to the core engine. By doing so, the pressure of the exhaust gas in the nozzle area is reduced while maintaining a constant exhaust gas velocity, which helps to decrease engine noise without compromising thrust. Additionally, the method can be enhanced by altering the location of the afterburner flames to create an inverted exhaust velocity profile, further minimizing noise levels.
Another significant patent by Stern is the gas turbine engine with a variable area fan nozzle bladder system. This turbofan engine design includes a variable area fan nozzle that effectively changes the physical area and geometry within the fan bypass flow path. This manipulation allows for adjustments in the pressure ratio of the bypass flow, utilizing a series of bladders circumferentially located around a core cowl.
Career Highlights
Throughout his career, Alfred M Stern has worked with prominent companies in the aerospace sector, including United Technologies Corporation and Nordam. His experience in these organizations has contributed to his expertise in jet engine technology and innovation.
Collaborations
Stern has collaborated with notable colleagues such as Delbert W Torkelson and Thomas J Jannetta, further enhancing his work in the field of aerospace engineering.
Conclusion
Alfred M Stern's contributions to jet engine technology through his innovative patents demonstrate his commitment to improving aerospace engineering. His work continues to influence the industry and showcases the importance of innovation in reducing noise and enhancing performance in aviation.