Rotary device, a motor and a method of cooling a motor
AssigneeIntegral Powertrain Limited
InventorAndrew Cross
Life of this patent
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Abstract
The invention provides a motor for generating rotary power, the motor comprising: a stator for receiving electrical power; a rotor arranged coaxially with respect to the stator and having one or more magnets arranged thereon so that in response to the stator receiving the electrical power, the rotor is caused to rotate; the rotor comprising a rotor housing having an inner wall, the magnets being arranged around the housing, and wherein the inner wall has plural tortuous paths for the flow of coolant extending along the length of the rotor housing. Preferably, the motor has an output shaft arranged at least partially axially within the rotor housing; the inner wall being shaped for engagement with and so as to drive the output shaft.
Claims21
A motor for generating rotary power, the motor comprising:
- a stator for receiving electrical power;
- a rotor arranged coaxially with respect to the stator and having one or more magnets arranged thereon so that in response to the stator receiving the electrical power, the rotor is caused to rotate, the rotor comprising a rotor housing having first and second ends, the magnets being arranged around the housing, and wherein the housing has one or more tortuous paths for the flow of coolant extending along the length of the rotor housing, and being configured to direct flow from the first end of the rotor housing to the second end and back to the first end;
- and
- a bidirectional tortuous flowpath extending along the one or more tortuous paths from the first end of the rotor housing to the second end of the rotor housing and from the second end of the rotor housing returning to the first end of the rotor housing, the bidirectional tortuous flowpath configured to transport the coolant from the first end of the rotor housing to the second end of the rotor housing and to return to the coolant to the first end of the rotor housing from the second end of the rotor housing.
A method of operating a motor, wherein the motor comprises a stator for receiving electrical power and a rotor arranged coaxially with respect to the stator, the rotor comprising a rotor housing having first and second ends, and wherein the housing has one or more tortuous paths for the flow of coolant extending along the length of the rotor housing, and the rotor has an output shaft coupled thereto, the method comprising:
- providing flow of a coolant along the one or more tortuous paths both from the first end of the rotor housing to the second end and back to the first end;
- providing flow of the coolant along a bidirectional tortuous flowpath extending along the one or more tortuous paths from the first end of the rotor housing to the second end of the rotor housing and from the second end of the rotor housing returning to the first end of the rotor housing, the bidirectional tortuous flowpath configured to transport the coolant from the first end of the rotor housing to the second end of the rotor housing and to return to the coolant to the first end of the rotor housing from the second end of the rotor housing;
- and
- providing electrical power to the stator so as to cause the rotor to rotate.
A rotary device for generating electricity, the rotary device comprising:
- a stator having windings;
- a rotor arranged coaxially with respect to the stator and having one or more magnets arranged thereon so that in response to the rotor being driven in a rotary manner, electrical power is generated within the windings of the stator, the rotor comprising a rotor housing having first and second ends, the magnets being arranged around the housing, and wherein the housing has one or more tortuous paths for the flow of coolant extending along the length of the rotor housing, and being configured to direct flow from the first end of the rotor housing to the second end and back to the first end;
- and
- a bidirectional tortuous flowpath extending along the one or more tortuous paths from the first end of the rotor housing to the second end of the rotor housing and from the second end of the rotor housing returning to the first end of the rotor housing, the bidirectional tortuous flowpath configured to transport the coolant from the first end of the rotor housing to the second end of the rotor housing and to return to the coolant to the first end of the rotor housing from the second end of the rotor housing.
Dependencies are inferred from the claim text.