Axial flux machine for use with projectiles

A large caliber powered projectile having a nose portion, a body portion, a tail portion, and a central axis, the powered projectile comprising:

• a chassis extending from the tail portion to the nose portion, the chassis defining a generally cylindrical wall of the body portion;
• a fuzing portion mounted or mountable to the nose portion, the fuzing portion including a plurality of aerodynamic surfaces thereon for despinning in response to an oncoming airstream;
• the fuzing portion further comprising an axial flux generator including one or more stators arranged axially with one or more rotors, the one or more stators each including a set of windings and the one or more rotors each including a plurality of permanent magnets arranged about the face of the respective one or more rotors, wherein each of the one or more rotors rotate with the aerodynamic surfaces, wherein the one or more rotors and stator windings axially face one another to form alternating axial layers of stator windings and rotor magnets;
• wherein upon relative motion of the rotor with respect to the stator, magnetic flux from the plurality of permanent magnets interacts with the set of windings of the stator and passes through an air gap between the one or more rotors and one or more stators.

A projectile axial flux power generator, comprising:

• a collar rotatably mounted to an axially extending control support portion of a chassis extending axially between a tail portion and a nose portion of a projectile, wherein the collar comprises a circumferentially and axially extending exterior sidewall defining a plurality of aerodynamic surfaces configured to spin or despin the collar with respect to the control support portion in response to an oncoming airstream;
• at least one rotor coupled to the collar and comprising a plurality of permanent magnets arranged about a face of the at least one rotor;
• and
• at least one stator comprising a set of windings arranged axially with the at least one rotor to define an air gap therebetween,
• wherein upon relative motion of the at least one rotor with respect to the at least one stator a magnetic flux from the plurality of permanent magnets passes axially through the air gap and interacts with the set of windings to generate an electrical current therein.