Patent ID: 11927083
Assignee: nan
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 1:
2. The method of claim 1, further comprising:
a tubular coupling configured to connect said hydraulic actuator assembly in driving relationship with said plunger pump for said reciprocating translation stroke movement, said tubular coupling having a tubular coupling sidewall defining a coupling flow passage for production fluid to pass upward through said tubular coupling to an upper end of the tubular coupling, said tubular coupling in mating threaded engagement with the lower actuator tube to pass production fluid upward into the lower actuator tube, said tubular coupling including a coupling accumulation orifice in the tubular sidewall, the coupling accumulation orifice providing open fluid communication with a production fluid accumulation space outside the tubular coupling sidewall.