| CPC H02K 7/083 (2013.01) [F02C 7/06 (2013.01); H02K 5/207 (2021.01); H02K 7/1823 (2013.01)] | 3 Claims |
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1. A combined power system that includes a rotary electric machine system and a gas turbine engine, the rotary electric machine system including a rotary electric machine and a rotary electric machine housing configured to rotatably support a rotating shaft of the rotary electric machine, the gas turbine engine including an output shaft and an engine housing, the output shaft being configured to support a turbine wheel and a compressor wheel, and to rotate integrally with the rotating shaft, the engine housing accommodating the turbine wheel and the compressor wheel, the combined power system comprising:
a first bearing;
a second bearing; and
an oil supply device configured to supply a lubricating oil to the first bearing and the second bearing,
the rotating shaft including a first end as one end thereof in a longitudinal direction, and a second end as another end thereof in the longitudinal direction, the second end being coupled to the output shaft,
the first bearing being interposed between the first end of the rotating shaft and the rotary electric machine housing, the second bearing being interposed between the second end of the rotating shaft and the rotary electric machine housing,
wherein the rotary electric machine housing includes a sub-housing to which the engine housing is coupled, an insertion hole is formed in the sub-housing, and the second bearing is inserted into the insertion hole,
a plurality of air bleed ports are formed in a shroud case that surrounds the compressor wheel, and compressed air that has been compressed by the compressor wheel flows into the air bleed ports,
a plurality of air bleed passages are formed in the engine housing, and the compressed air that has passed through the plurality of air bleed ports flows into the air bleed passages individually,
a collection flow path is formed in the sub-housing, and communicates with the plurality of air bleed passages collectively,
in the rotary electric machine housing, a compressed air flow path is formed, through which the compressed air sent from the collection flow path flows, and
in the sub-housing, an oil supply passage and a drain passage are formed, the lubricating oil supplied from the oil supply device is supplied to the second bearing through the oil supply passage via the insertion hole, and the lubricating oil supplied to the second bearing is discharged through the drain passage via the insertion hole.
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