Axial flux motor driven pump systems for pressurizing fluid in closed loop systems

A pump system to pressurize a fluid within a closed loop fluid transport bus, the pump system comprising:

• means for increasing kinetic energy of the fluid flowing through the pump system;
• means for providing torque to a rotor shaft of the pump system;
• and
• means for mounting the pump system, wherein the means for mounting is to frame an axial flux motor, wherein the means for mounting is to frame at least one of an impeller, an impeller shaft, or a co-axial magnetic coupling separate from the axial flux motor;
• means for supporting at least one of a radial load or a thrust load generated by at least one of the rotor shaft, the impeller shaft, or the co-axial magnetic coupling, the means for supporting lubricated via an oil lubricant;
• and
• means for separating the oil lubricant from the fluid, a portion of the oil lubricant to be mixed with the fluid.

An aircraft comprising:

• a gas turbine engine;
• and
• a pump system to pressurize a fluid within a closed loop fluid transport bus, the pump system comprising:
• an impeller coupled to an impeller shaft;
• an axial flux electric motor including rotors;
• a rotor shaft connected to the rotors, wherein the rotor shaft is coupled to the impeller shaft;
• a seal to inhibit contact between the fluid and the axial flux electric motor;
• a first housing to frame the impeller shaft;
• a second housing to frame the axial flux electric motor, wherein the second housing is separate from the first housing;
• and
• a first line replaceable unit fixed to the second housing, the first line replaceable unit including at least one of the impeller, the impeller shaft, the first housing, a co-axial magnetic coupling, and a second shaft, wherein the second shaft is coupled to the impeller shaft via the co-axial magnetic coupling, wherein the second housing is a second line replaceable unit, the second line replaceable unit including at least one of the axial flux electric motor or the rotor shaft, and wherein the first line replaceable unit is configured to be removable from the second line replaceable unit.