Patent ID: 6948919

Claim:
A fuel booster operable to compress a combustible fuel, the fuel booster comprising: a compressor housing; a compressor rotor; a seal assembly coupled to the compressor housing, the seal assembly and the compressor housing cooperating to at least partially define a hermetically sealed compressor chamber; a motor housing coupled to the seal assembly, the motor housing and the seal assembly cooperating to at least partially define a motor chamber that is sealed from the compressor chamber to prevent fluid flow therebetween; and a motor including a motor rotor and a motor stator, the motor rotor and the compressor rotor contained within the compressor chamber, the motor rotor including a cylindrical surface, the motor stator substantially surrounding the cylindrical surface and contained within the motor chamber; wherein the compressor rotor is a first compressor rotor, the fuel booster further comprising a second compressor rotor engaged with the first compressor rotor, the first compressor rotor and the second compressor rotor contained within the compressor chamber.