Patent ID: 8667962
Filing Date: 2014-03-11
Classification: A61M,F04D

Abstract:
1. A flow generator for generating a flow of pressurized breathable gas, comprising: a cylindrical housing; a motor supported in the cylindrical housing, the motor having a shaft having a first end and a second end opposite the first end, the shaft being generally coincident with an axis of the motor; a first impeller attached to the first end of the shaft; a second impeller attached to the second end of the shaft; and a stator that directs an air flow from the first impeller towards and around the motor axis and on to the second impeller, the air flow from the second impeller is directed to fold back towards the motor to at least one outlet between the first and second impellers, the at least one outlet having an outlet axis generally tangential to a circumference of the cylindrical housing, wherein the cylindrical housing comprises an inlet adjacent the first end of the shaft and having an inlet axis generally coincident with the motor axis.