CPC F04C 2/18 (2013.01) [F04C 2/08 (2013.01); F04C 2/084 (2013.01); F04C 2/102 (2013.01); F04C 11/008 (2013.01); F04C 15/008 (2013.01); F04C 2/16 (2013.01); F04C 13/005 (2013.01); F04C 2240/40 (2013.01); F04C 2240/402 (2013.01); F04C 2270/16 (2013.01)] | 20 Claims |
1. A pump comprising:
a pump casing defining an interior volume, the pump casing including a first port in fluid communication with the interior volume, and a second port in fluid communication with the interior volume;
a first gear disposed within the interior volume, the first gear having a first gear body and a plurality of first gear teeth;
a second gear disposed within the interior volume, the second gear having a second gear body and a plurality of second gear teeth projecting radially outwardly from the second gear body, the second gear is disposed such that a second face of at least one tooth of the plurality of second gear teeth aligns with a first face of at least one tooth of the plurality of first gear teeth;
a first motor that rotates the first gear about a first axial centerline of the first gear in a first direction to transfer a fluid from the first port to the second port along a first flow path; and
a second motor that rotates the second gear, independently of the first motor, about a second axial centerline of the second gear in a second direction to provide synchronized contact between the second face and the first face and to transfer the fluid from the first port to the second port along a second flow path,
wherein the first motor includes a first motor casing,
wherein the first gear body includes a first opening along the first axial centerline that is configured to accept the first motor, including the first motor casing,
wherein the first motor is an outer-rotor motor and is disposed in the first opening, the first motor comprising a first rotor,
wherein the first rotor is coupled to the first gear via the first motor casing to rotate the first gear about the first axial centerline in the first direction,
wherein the second motor includes a second motor casing,
wherein the second gear body includes a second opening along the second axial centerline that is configured to accept the second motor, including the second motor casing, and
wherein the second motor is an outer-rotor motor and is disposed in the second opening, the second motor comprising a second rotor, and
wherein the second rotor is coupled to the second gear via the second motor casing to rotate the second gear about the second axial centerline in the second direction.
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