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

Claim 1:
2. The pumping assembly according to claim 1, wherein the first lubricating oil path comprises a main shaft center hole of the main shaft, a main shaft oil hole of the main shaft, a second structural body backpressure groove of the second structural body, the sliding sheet backpressure cavity of the rotor structure of the main shaft, a second structural body pressure relieving groove of the second structural body, a second structural body first oil groove of the second structural body, a third structural body first oil hole of the third structural body, a third structural body second oil hole of the third structural body, a second structural body oil hole of the second structural body, the rolling body of the rolling bearing assembly, a second structural body second oil groove of the second structural body, an outer ring oil hole of the rolling bearing assembly and a first structural body first oil hole of the first structural body, and the first structural body first oil hole is configured to allow lubricating oil in the first lubricating oil path return to an oil pool.