Air bearing and motor cooling
First Claim
1. A motor comprising:
- a housing including separate motor and bearing cooling inlets respectively providing cooling air to motor and bearing cooling paths arranged parallel and separate to one another;
a motor arranged within the housing and including a stator and a rotor assembly supported on air bearings, the motor cooling inlet in fluid communication with the stator which is arranged in the motor cooling path, and the bearing cooling inlet in fluid communication with the air bearings which is arranged in the bearing cooling path;
a vent in the housing through which the cooling air from both the motor and bearing cooling paths exit; and
wherein the rotor assembly includes rotor blades supported on a rotor, the motor cooling inlet is in fluid communication with a compressor inlet provided by the housing, cooling air flowing from the compressor inlet to the motor cooling inlet bypassing the rotor blades.
2 Assignments
0 Petitions
Accused Products
Abstract
A motor includes a housing including separate motor and bearing cooling inlets. A motor is arranged within the housing and includes a stator and rotor assembly that is supported on air bearings. The motor cooling inlet is in fluid communication with the stator, and the bearing cooling inlet is in fluid communication with the air bearings. A vent is arranged in the housing and is common to the motor and bearing cooling inlets. The vent is in fluid communication with a low pressure side of a ram air duct. The bearing cooling duct is in fluid communication with a high pressure side of a ram air duct, such as through a reverse J-tube. A differential pressure between the high and low pressure sides moves cooling fluid from the bearing cooling inlet to the vent to cool the bearings.
72 Citations
9 Claims
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1. A motor comprising:
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a housing including separate motor and bearing cooling inlets respectively providing cooling air to motor and bearing cooling paths arranged parallel and separate to one another; a motor arranged within the housing and including a stator and a rotor assembly supported on air bearings, the motor cooling inlet in fluid communication with the stator which is arranged in the motor cooling path, and the bearing cooling inlet in fluid communication with the air bearings which is arranged in the bearing cooling path; a vent in the housing through which the cooling air from both the motor and bearing cooling paths exit; and wherein the rotor assembly includes rotor blades supported on a rotor, the motor cooling inlet is in fluid communication with a compressor inlet provided by the housing, cooling air flowing from the compressor inlet to the motor cooling inlet bypassing the rotor blades. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A motor comprising:
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a housing including separate motor and bearing cooling inlets respectively providing cooling air to motor and bearing cooling paths arranged parallel and separate to one another; a motor arranged within the housing and including a stator and a rotor assembly supported on air bearings, the motor cooling inlet in fluid communication with the stator which is arranged in the motor cooling path, and the bearing cooling inlet in fluid communication with the air bearings which is arranged in the bearing cooling path; and a vent in the housing through which the cooling air from both the motor and bearing cooling paths exit, wherein the vent is in fluid communication with a low pressure side of a ram air duct, and the bearing cooling inlet is in fluid communication with a high pressure side of a ram air duct, a differential pressure between the high and low pressure sides moving cooling fluid from the bearing cooling inlet to the vent. - View Dependent Claims (8, 9)
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Specification