Patent ID: 7841164
Filing Date: 2010-11-30
Classification: F02C,F23K

Abstract:
1. A direct metering fuel supply system, comprising: a plurality of axial gap motors, each axial gap motor configured to be selectively energized and operable, upon being energized, to supply a drive torque at a drive speed; a fixed displacement, variable speed positive displacement piston pump coupled to each of the axial gap motors to receive the drive torque selectively supplied therefrom and operable, upon receipt of the drive torque, to supply fuel at a flow rate dependent on the drive speed; and a gas turbine engine control adapted to receive fuel flow commands and operable, in response to the fuel flow commands, to energize one of the plurality of axial gap motors, wherein each axial gap motor comprises a pair of permanent magnet rotors, each rotor coupled to the fixed displacement, variable speed positive displacement piston pump and having a plurality of magnetic dipoles disposed thereon.