Patent ID: 11946471
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  H | IPC F  H

Claim 0:
1. A pump, comprising:
a housing having one or more fluid inlets and one or more fluid outlets configured to act as a pump housing for passing a fluid from the one or more fluid inlets to the one or more fluid outlets, and configured to act as a stator for a motor, wherein the one or more fluid inlets and one or more fluid outlets are defined in an outer diameter in a radially outward facing circumferential surface of the housing spaced from one another in a circumferential direction to form one or more circumferential passes within the housing; and
a cylinder encased within the housing and mounted on a shaft for rotation within the housing, the cylinder configured to act as an impeller to drive fluid from the one or more fluid inlets through the housing to the one or more fluid outlets, and configured to act as a rotor for the motor,
wherein the cylinder includes a first cylinder portion and a second cylinder portion, wherein the first cylinder portion is bound by the second cylinder portion along the rotational axis of the cylinder, wherein the housing includes a first housing portion and a second housing portion, wherein one or more fluid inlets and one or more fluid outlets are defined in the second housing portion, wherein the first cylinder portion and the first housing portion are the same axial length, wherein the second cylinder portion extends axially beyond the first housing portion, wherein the second cylinder portion includes a first sub portion and a second sub portion, wherein the first sub portion is positioned separate from the second sub portion axially across the first cylinder portion, wherein the first sub portion and the second sub portions are mirror images of one another, wherein the pump includes a regenerative pump,
wherein the first housing portion includes one or more field windings configured to generate a magnetic field to drive rotation of the cylinder such that the first housing portion is configured to act as the stator for the motor,
wherein the one or more fluid inlets includes two fluid inlets and the one or more fluid outlets includes two fluid outlets and wherein one fluid inlet and one fluid outlet are positioned on a first side of the second housing portion and one fluid inlet and one fluid outlet are positioned on a second side of the second housing portion, opposite the first side and across the first housing portion, wherein the second housing portion forms the pump housing,
wherein a first fluid channel is formed by the fluid inlet and the fluid outlet on the first side of the second housing portion and wherein a second fluid channel is formed by the fluid inlet and the fluid outlet on the second side of the second housing portion, wherein the fluid inlet and the fluid outlet of the first fluid channel are separated from one another by a first jetty in the first fluid channel to prevent fluid in the first fluid channel from exiting through the fluid inlet, and wherein the fluid inlet and the fluid outlet of the second fluid channel are separated from one another by a second jetty in the second fluid channel to prevent fluid in the second fluid channel from exiting through the fluid inlet.