sentences:  Electrical power was supplied by a water-cooled, three-phase alternator which was built into a two-stage gas turbine, fueled with liquified natural gas, running at 50,000 rpm at low speed and 100,000 rpm at high speed, weighing 186 pounds.Additional energy for acceleration was provided by a 147-pound SatCon composite flywheel housed in a vacuum chamber running at 58,000 rpm, coupled to the drive train via three-phase permanent magnets in a Halbach array.In 1995 SatCon and Chrysler were awarded the Discover Award for innovation in automotive engineering for the Patriot design.