| 摘要 |
PURPOSE:To eliminate operations for filling and discharging hydrogen gas by automatically regulating the hydrogen gas pressure in a machine of cooling medium in response to a variation in a load. CONSTITUTION:A plurality of racks 18 are formed in a hydrogen gas circulating path in a hydrogen-cooled rotary electric machine, cases 17 for containing powder hydrogen storage alloy 19 filled in a housing are held on the racks 18. Hydrogen gas 15 circulated in the machine is freely passed through the cases 17 to rise or fall the temperature of the alloy 19, thereby automatically regulating the hydrogen pressure in the machine in response to the magnitude of a load. Thus, the efficiency of the rotary electric machine can be improved. Since the case 17 containing the alloy 19 is provided in the hydrogen gas circulating passage in the machine, the absorbing and discharging phenomenon of the hydrogen of the alloy 19 for the temperature change of the gas in the machine can be effectively utilized. |
