Patent ID: 11898562
Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pumping assembly, comprising a first structural body, a rolling bearing assembly, a second structural body, a third structural body and a main shaft, wherein the main shaft sequentially passes through the first structural body, the rolling bearing assembly, the second structural body and the third structural body, and the pumping assembly comprising a plurality of lubricating oil paths, wherein the plurality of lubricating oil paths are comprised of: a first lubricating oil path passing through the second structural body, a sliding sheet backpressure cavity of a rotor structure of the main shaft, the third structural body, the second structural body and a rolling body of the rolling bearing assembly; a second lubricating oil path passing through the sliding sheet backpressure cavity of the rotor structure of the main shaft and a first structural body pressure relieving groove of the first structural body; and a third lubricating oil path passing through the sliding sheet backpressure cavity of the rotor structure of the main shaft, the first structural body and the rolling body of the rolling bearing assembly.