A hydrogen blower is provided and includes a housing having a drive unit and a
compressor unit disposed therein. The drive unit is separated from the compressor
unit by a neutral chamber, whereby the neutral chamber effectively seals the drive
unit from the compressor unit. The drive unit includes a drive shaft, whereby the
drive shaft extends generally between the drive unit and the compressor unit to
selectively drive the compressor. In addition, the drive shaft fixedly supports
a series of fan blades such that rotation of the drive shaft imparts a pressure
on the neutral chamber to effectively seal the drive unit from the compressor unit.
In this manner, the drive motor, compressor, and drive shaft may be packaged in
a single housing while effectively sealing the drive unit from the compressor unit
through cooperation between the fan blades and the neutral chamber.