Homoplanar brushless electric gerotor

A gerotor pump comprising:

• a housing defining a substantially closed cavity, a fluid inlet port and a fluid outlet port,
• inner and outer gerotor pump gears eccentrically disposed for relative rotation within said cavity whereupon a working fluid received at said inlet port at low pressure is discharged from said outlet port at a high pressure;
• a plurality of circumferentially aligned permanent magnets carried by said outer gear for rotation therewith;
• stator means including windings circumferentially encompassing and radially spaced from said permanent magnets for electromagnetic interaction therewith to effect said rotation upon the electrical energization of said windings;
• and,
• drive circuit means operative to electrically energize said windings in response to receiving at least one parametric input signal, said drive circuit means being operative to energize said windings at a variable rate to effect a variable pump flow rate characteristic.