| abstract |
An apparatus for delivering a gas flow, having: a controller; a housing defining a gas flow channel through which a high concentration of oxygen flows; a motor having windings, elastic bearing mountings a seat and impeller to deliver the gas through the gas flow channel; a flexible printed circuit that electrically connects the motor to the controller and sensor system; and an elastomeric shield, the An elastomeric shield pneumatically isolates the windings from the airflow channel. |