Jeffrey Dugan Shelby

Title: The Innovations of Jeffrey Dugan Shelby

Introduction

Jeffrey Dugan Shelby is a notable inventor based in South Bend, IN (US). He has made significant contributions to the field of gas turbine engine fuel control systems. With a total of 3 patents to his name, Shelby's work showcases his expertise and innovative spirit.

Latest Patents

One of Shelby's latest patents is a gas turbine engine fuel control system featuring a transfer valve and a shutoff valve, along with a common controller. This system includes a metering valve for regulating fuel flow and a throttling valve that maintains a pressure drop across the metering valve. The throttling valve can shift between an open state and a shutoff state, effectively blocking the outlet of the metering valve. Additionally, the system incorporates a primary control pressure supply and a backup control pressure supply, along with a transfer valve that connects these supplies to the metering valve. An electrohydraulic servovalve (EHSV) is also included, which controls the state of the transfer valve and the position of the throttling valve.

Another significant patent by Shelby involves a gas turbine engine fuel control system that features a start/back up check valve (SBUC). This system includes a main fuel inlet line, an auxiliary fuel inlet line, and an engine fuel outlet line. A check valve in the first flow path allows fuel to flow from the main fuel inlet line to the engine fuel outlet line while preventing reverse flow. The check valve can shift between positions to connect the auxiliary fuel inlet to the engine fuel outlet or block the second flow path.

Career Highlights

Jeffrey Dugan Shelby is currently employed at Honeywell International Inc., where he continues to innovate and develop advanced fuel control systems for gas turbine engines. His work has been instrumental in enhancing the efficiency and reliability of these systems.

Collaborations

Throughout his career, Shelby has collaborated with talented individuals such as Paul W. Futa, Jr. and Matthew Arend. These collaborations have contributed to the successful development of his patented technologies.

Conclusion

Jeffrey Dugan Shelby's contributions to gas turbine engine fuel control systems highlight his innovative capabilities and dedication to advancing technology in this field. His patents reflect a commitment to improving efficiency and reliability in engineering applications.