John William Little

Title: John William Little: Innovator in Acoustic Engineering

Introduction

John William Little is a notable inventor based in Bellevue, WA (US). He has made significant contributions to the field of acoustic engineering, particularly in the design of noise suppression technologies for turbofan jet propulsion engines. His innovative approach addresses the challenges posed by noise generated during engine operation.

Latest Patents

John William Little holds a patent for a "Fluid layer acoustic shield for turbofan jet propulsion engine." This invention focuses on suppressing noise generated by the tips of the fan blades in turbofan engines. The technology involves generating an annular fluid layer or wake in the inlet of the engine, which is positioned forwardly from the fan blades and spaced inwardly from the inner wall of the inlet. By lining the inner wall with an acoustically absorbent layer of material, sound waves produced by the fan blades are reflected outwardly by the fluid layer and absorbed by the acoustic layer. The effectiveness of this design relies on specific conditions regarding fluid velocity and acoustic speed, ensuring optimal noise reduction.

Career Highlights

John William Little is associated with The Boeing Company, where he applies his expertise in acoustic engineering to enhance aircraft performance and passenger comfort. His work contributes to the ongoing efforts to minimize noise pollution in aviation, making air travel more pleasant for passengers and communities near airports.

Collaborations

John has collaborated with fellow inventor Samuel Joseph Cowan, working together to advance technologies in the aerospace sector.

Conclusion

John William Little's innovative contributions to acoustic engineering exemplify the importance of addressing noise challenges in modern aviation. His patent for a fluid layer acoustic shield demonstrates a practical solution that enhances the efficiency and comfort of turbofan jet propulsion engines.