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US 2014/0191597 A1Published application
Enhanced cooling of enclosed air cooled high power motors
AssigneeHamilton Sundstrand Corporation
InventorDebabrata Pal
Life of this patent
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Abstract
A fully enclosed fan motor assembly includes a motor housing. A stator is located radially inward from the motor housing. A rotor is located radially inward from the stator, and the gap in between the rotor and stator defines a rotor stator gap. A shaft is located radially inward from the rotor. A fin portion extending radially outward from the shaft is used to dissipate heat from the rotor to air drawn through the rotor stator gap and over the fin portion.
Claims20
A fan motor assembly comprising:
- a motor housing,
- a stator located radially inward from the motor housing;
- a rotor located radially inward from the stator, the stator and the rotor defining a rotor stator gap there between;
- a shaft located radially inward from and connected to the rotor;
- and
- a heat exchanger mounted on and extending radially outward from the shaft, the heat exchanger is positioned to transfer heat to air drawn through the rotor stator gap.
3 more elements
A fan motor assembly comprising:
- a fan casing;
- a fan impeller located in an upstream portion of the fan casing;
- a motor housing mounted within the fan casing, with fan stator vanes mounted on and extending radially from the motor housing;
- a stator located radially inward from the motor housing;
- a rotor located radially inward from the stator, the stator and the rotor defining a rotor stator gap there between;
- a shaft located radially inward from and connected to the rotor;
- and
- a heat exchanger mounted on and extending radially outward from the shaft, the heat exchanger is positioned to transfer heat to air drawn through the rotor stator gap.
5 more elements
Dependencies are inferred from the claim text.