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AssigneeWeg Equipamentos EléTricos S.A.
InventorsFernando Andre Lindroth Dauner, Samuel Santos Borges, Douglas Eyng Fritzen, Cassiano Antunes Cezario
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A rotary electric machine is provided that includes a housing that forms an internal cavity that houses a rotor/stator assembly, in which the rotor is positioned on a main shaft of the machine, a lubricating fluid reservoir defining a hub portion defining an inner surface, and at least one roller bearing coupled to the main shaft and supported by the hub portion and by a bushing. The machine includes an oil ring fastened to the bushing and arranged between the main shaft of the machine and the inner surface of the hub portion, wherein the oil ring includes a wall having a substantially circular cross section and at least one elongate and inclined projection on an outer surface of the wall, each elongate and inclined projection having a lower edge and an upper edge and in which the rotation of the oil ring generates a pressure difference between the lower edge and the upper edge to force the lubricant towards the at least one roller bearing.
A rotary electric machine comprising a housing delimiting an internal cavity that houses a rotor and stator assembly, with the rotor arranged on a main shaft of the machine, a lubricating fluid reservoir with a hub part defining a radial inner face with respect to the main shaft of the machine, and at least one roller bearing coupled to the main shaft of the rotary electric machine and supported by the hub part and by a bushing, comprising
An oil ring for a rotary electrical machine comprising a housing delimiting an internal cavity that houses a rotor and stator assembly, the rotor being arranged on a main shaft of the machine, a lubricating fluid reservoir defining a hub part with a radial inner surface with respect to the main shaft of the machine, and at least one roller bearing coupled to the main shaft and supported by the hub part and by a bushing, the oil ring comprising a wall of substantially circular cross-section and at least one elongated and inclined projection on an outer surface of the wall, wherein the oil ring is dimensioned to be arranged between the main shaft of the machine and the radial inner surface of the hub part, and further comprising five elongated and inclined projections spaced apart.
Dependencies are inferred from the claim text.