Motor rotor and compressor equipped with the motor rotor
AssigneeDaikin Industries, Ltd.
InventorsMasanori Masuda, Kazuhiro Furusho
Life of this patent
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Abstract
A motor rotor for a compressor includes a rotor core, at least one gas passage and an oil passage. The rotor core is configured to rotate about a rotation axis and has a plurality of stacked steel plates. The gas passage penetrates the rotor core in its axial direction and allows a gas fluid to flow therethrough from a first axial direction end portion of the rotor core to a second axial direction end portion on the opposite axial side. The oil passage is positioned radially outwardly of the gas passage inside the rotor core relative to the rotation axis. The oil passage allows oil to flow from the second axial direction end portion to the first axial direction end portion, which is opposite to the gas flow direction through the gas passage.
Claims20
A motor rotor comprising:
- a rotor core configured to rotate about a rotation axis and having a plurality of stacked steel plates;
- at least one gas passage penetrating the rotor core in its axial direction to allow a gas fluid to flow therethrough from a first axial direction end portion of the rotor core to a second axial direction end portion of the rotor core on an opposite axial side of the first axial direction end portion;
- and
- an oil passage positioned radially outwardly of the gas passage inside the rotor core relative to the rotation axis to allow oil to flow from the second axial direction end portion to the first axial direction end portion, which is an opposite flow direction to a flow direction of the gas fluid flowing through the gas passage.
Dependencies are inferred from the claim text.