Fluid delivery system with a shaft having a through-passage
AssigneeProject Phoenix, LLC
InventorThomas Afshari
Life of this patent
Estimating the term…
Abstract
A fluid delivery system having at least one fluid storage device and a pump with at least one fluid driver with a flow-through shaft that has a through-passage. The pump includes a casing, and at least one fluid driver having a prime mover and at least one fluid displacement member. A shaft of the prime mover and/or a shaft of the fluid displacement member and/or a common shaft of the prime mover/fluid displacement member (depending on the configuration of the pump) is a flow-through shaft with a through-passage configuration that allows fluid communication between at least one port of the pump and the at least one fluid storage device.
Claims13
A pump comprising:
- a casing defining an interior volume, the 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;
- 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 contact the second face with the first face and to transfer the fluid from the first port to the second port along a second flow path;
- and
- at least one flow-through shaft disposed in at least one of the first motor, the second motor, the first gear and the second gear, each of the at least one flow-through shaft having a through passage along an axial centerline of the respective flow-through shaft such that a first end of the through-passage is in fluid communication with a fluid chamber of a storage device and a second end of the through-passage, which is opposite the first end, is configured to be in fluid communication with the first port or the second port,
- wherein each through-passage of the at least one flow-through shaft comprises a tapered portion extending from the first end of the through-passage and to a point part-way into the through-passage, and
- wherein a diameter of the tapered portion at the first end of the through-passage is larger than a diameter of the tapered portion at the point part-way into the through passage.
A fluid delivery system comprising:
- at least one hydraulic fluid storage device, each hydraulic fluid storage device comprising a fluid chamber;
- and
- a pump comprising at least one fluid driver having
- a casing,
- a prime mover,
- at least one fluid displacement member, and
- at least one flow-through shaft having a through passage along an axial centerline of the flow-through shaft such that a first end of the through-passage is configured to be in fluid communication with the fluid chamber and a second end of the through-passage, which is opposite the first end, is configured to be in fluid communication with a port of the pump,
- wherein each through-passage of the at least one flow-through shaft comprises a tapered portion extending from the first end of the through-passage and to a point part-way into the through-passage, and
- wherein a diameter of the tapered portion at the first end of the through-passage is larger than a diameter of the tapered portion at the point part-way into the through passage.
Dependencies are inferred from the claim text.