Application of a Vehicular Designed, Heavy Duty Gas Turbine Engine to a Military Generator Set PUBLIC ACCESS

[+] Author Affiliations
Samuel C. Laux

General Motors Corporation, Indianapolis, IN

Robert N. Ware

U.S. Army Belvoir Research and Development Center, Fort Belvoir, VA

Paper No. 85-GT-125, pp. V001T04A003; 5 pages
  • ASME 1985 International Gas Turbine Conference and Exhibit
  • Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
  • Houston, Texas, USA, March 18–21, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7938-2
  • Copyright © 1985 by ASME


The Patriot Air Defense Missile System (formerly SAM-D) is being deployed in Europe. The powerplant supplying electricity to the radar set and to the engagement control station is DOD Model D-424A, powered by the Allison Model GT-404 industrial gas turbine (IGT) engine. Designed as a vehicular engine, the application in a generator set is an interesting one, utilizing many of the following features originally intended to enhance the performance of trucks and buses:

• Dual, rotating disk regenerators dramatically improve fuel consumption by transferring heat energy from the exhaust gas stream to compressor discharge.

• Power transfer, intended to provide part load fuel economy in vehicles, is modified to furnish free-shaft start-fixed shaft run in generator sets.

• Free-shaft starts allow successful operation down to −50°F without auxiliary heaters.

The resultant gas turbine engine driven generator set — 150 kW, transportable, skid mounted, alternating current 400 Hz, tactical — has met the military requirements for performance and reliability.

Copyright © 1985 by ASME
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