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US 12,009,731 B2Granted
Rotary device with a fan mounted outside a housing to introduce external air into the housing
AssigneeHanwha Powersystems Co., Ltd
InventorsJin Seok Hwang, Hong Gi Park
Life of this patent
Estimating the term…
Abstract
A rotary device includes a housing; an impeller provided in the housing; a rotor disposed at a rear of the impeller, and configured to rotate; a stator disposed to surround the rotor; a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated; and a fan mounted to an outside of the housing, and configured to introduce external air into an inside of the housing and, after the external air is heated while travelling on a cooling flow path, release the external air to the outside of the housing.
Claims18
A rotary device, comprising:
- a housing;
- an impeller provided in the housing;
- a rotor disposed at a rear of the impeller in an axial direction of the rotary device, and configured to rotate;
- a stator disposed to surround the rotor;
- a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated;
- and
- a fan mounted to an outside of the housing in a first direction that is perpendicular to the axial direction of the rotary device, and configured to introduce external air into an inside of the housing in a second direction that is opposite to the first direction and, after the external air is heated while travelling on a cooling flow path, release the external air to the outside of the housing in the first direction,
- wherein the housing is provided with an inlet that is configured to introduce the external air into the housing in the second direction that is perpendicular to the axial direction of the rotary device, and the inlet comprises a first opening in a first portion of an outer surface of the housing, the first opening and the first portion of the outer surface facing in the first direction that is perpendicular to the axial direction,
- wherein the housing is further provided with an outlet that is configured to release the external air, introduced into the inlet, to the outside of the housing in the first direction that is perpendicular to the axial direction of the rotary device from the cooling flow path, and the outlet comprises a second opening in a second portion of the outer surface of the housing, the second opening and the second portion of the outer surface facing in the first direction that is perpendicular to the axial direction,
- wherein the fan is positioned at one of the inlet and the outlet and depending on a driving direction of the fan, the external air is introduced in the housing in the second direction that is perpendicular to the axial direction of the rotary device and the external air which is heated while travelling on the cooling flow path is discharged through the housing in the first direction that is perpendicular to the axial direction of the rotary device, and
- wherein the inlet is provided in the housing, and the inlet is configured to introduce the external air into the housing in the second direction, that is perpendicular to the axial direction, in proximity to a position of the bearing such that the external air receives heat generated from the bearing and moves to the cooling flow path.
8 more elements
A rotary device for a rotating body, the rotary device comprising:
- a housing that comprises an inlet and an outlet that are at a side of the housing in a first direction that is perpendicular to an axial direction of the rotary device, the inlet configured to introduce external air into the housing in a second direction, opposite to the first direction, and the outlet configured to release the external air, introduced into the inlet, to an outside of the housing in the first direction that is perpendicular to the axial direction of the rotary device;
- an impeller provided in the housing;
- a rotor disposed at a rear of the impeller in the axial direction of the rotary device, and configured to rotate;
- a stator disposed to surround the rotor;
- a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated;
- and
- a fan positioned outside of the housing in the first direction, at the inlet or the outlet, and configured to introduce the external air into the inlet in the second direction that is perpendicular to the axial direction of the rotary device, and after the external air is heated while travelling on a cooling flow path, release the external air to the outside of the housing in the first direction,
- wherein the inlet comprises a first opening in a first portion of an outer surface of the housing, the first opening and the first portion of the outer surface facing in the first direction that is perpendicular to the axial direction,
- wherein the outlet comprises a second opening in a second portion of the outer surface of the housing, the second opening and the second portion of the outer surface facing in the first direction that is perpendicular to the axial direction,
- wherein the inlet is provided in the housing, and the inlet is configured to introduce the external air into the housing in the second direction, that is perpendicular to the axial direction, in proximity to a position of the bearing such that the external air receives heat generated from the bearing and moves to the cooling flow path.
7 more elements
A method of operating a rotary device that includes a housing provided with an inlet and an outlet that are configured to receive and emit external air to and from the housing, respectively, and a fan positioned outside of the housing in a first direction that is perpendicular to an axial direction of the rotary device, at the inlet or the outlet, and configured to introduce the external air into the inlet, the method comprising:
- driving, in a case where the fan is disposed at the outlet, the fan in a direction to emit the external air, in an inside of the housing, to an outside of the housing in the first direction that is perpendicular to the axial direction of the rotary device, or
- driving, in a case where the fan is disposed at the inlet, the fan in a direction to introduce the external air into the inside of the housing in a second direction that is opposite to the first direction that is perpendicular to the axial direction of the rotary device,
- wherein the inlet and the outlet are at a side of the housing in the first direction, the inlet configured to introduce the external air into the housing in the second direction, and the outlet configured to release the external air, introduced into the inlet, to the outside of the housing in the first direction,
- wherein the inlet comprises a first opening in a first portion of an outer surface of the housing, the first opening and the first portion of the outer surface facing in the first direction that is perpendicular to the axial direction,
- wherein the outlet comprises a second opening in a second portion of the outer surface of the housing, the second opening and the second portion of the outer surface facing in the first direction that is perpendicular to the axial direction,
- wherein the rotary device further includes:
- an impeller provided in the housing;
- a rotor disposed at a rear of the impeller in the axial direction of the rotary device, and configured to rotate;
- a stator disposed to surround the rotor;
- and
- a bearing at the rear of the impeller, and configured to relieve friction caused by rotation of the rotor while supporting the rotor when the rotor is rotated,
- wherein the fan is further configured to release the external air to the outside of the housing in the first direction after the external air is heated while travelling on a cooling flow path, and
- wherein the inlet is provided in the housing, and the inlet is configured to introduce the external air into the housing in the second direction, that is perpendicular to the axial direction, in proximity to a position of the bearing such that the external air receives heat generated from the bearing and moves to the cooling flow path.
10 more elements
Dependencies are inferred from the claim text.