ROTARY ELECTRIC MACHINE
First Claim
1. A rotary electric machine comprising:
- a stator;
a rotor;
rotor fans;
a closed type frame containing the stator, the rotor and the rotor fans;
a gas cooler for cooling gas that has been warmed as a result of being circulated in the frame by the rotor fans and exchanging heat with the stator and the rotor;
a heat pump utilizing a first coolant as a high temperature heat source and a second coolant as a low temperature heat source; and
a second coolant circulation system for supplying the second coolant to a heat exchange section of the gas cooler;
whereinthe second coolant is cooled by the heat pump and supplied to the heat exchange section of the gas cooler by the second coolant circulation system.
1 Assignment
0 Petitions
Accused Products
Abstract
A rotary electric machine includes: a stator, a rotor and rotor fans contained in a closed type frame. The cooling gas is circulated in the frame by the rotor fans and warmed as a result of heat exchange with the stator and the rotor is cooled by a gas cooler. A heat pump is adapted to use cooling water or ambient air as high temperature heat source and liquid coolant as low temperature heat source. A liquid coolant circulation system for supplying liquid coolant to the heat exchange section of the gas cooler is provided. The liquid coolant is cooled by the heat pump and is supplied to the heat exchange section of the gas cooler by means of the coolant circulation system.
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Citations
15 Claims
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1. A rotary electric machine comprising:
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a stator; a rotor; rotor fans; a closed type frame containing the stator, the rotor and the rotor fans; a gas cooler for cooling gas that has been warmed as a result of being circulated in the frame by the rotor fans and exchanging heat with the stator and the rotor; a heat pump utilizing a first coolant as a high temperature heat source and a second coolant as a low temperature heat source; and a second coolant circulation system for supplying the second coolant to a heat exchange section of the gas cooler;
whereinthe second coolant is cooled by the heat pump and supplied to the heat exchange section of the gas cooler by the second coolant circulation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A rotary electric machine comprising:
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a stator having a stator coil, a rotor; rotor fans, a frame containing the stator, the rotor and the rotor fans; a pure water supply system for supplying pure water into the stator coil; a pure water cooler for cooling the pure water; a heat pump utilizing a first coolant as a high temperature heat source and a second coolant as a low temperature heat source; and a second coolant circulation system for supplying the second coolant to the heat exchange section of the pure water cooler, wherein the second coolant is cooled by the heat pump and supplied to a heat exchange section of the pure water cooler. - View Dependent Claims (13)
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14. A rotary electric machine comprising:
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a stator having a stator coil; a rotor; rotor fans; a frame containing the stator, the rotor and the rotor fans; a heat pump utilizing a first coolant as a high temperature heat source and the pure water as a low temperature heat source; and a pure water supply system for supplying pure water into the stator coil, wherein pure water is cooled by the heat pump and supplied to the stator coil. - View Dependent Claims (15)
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Specification