Patent ID: 11859612
Assignee: TPE MIDSTREAM LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A fluid transfer apparatus comprising:
a drive chamber having a first end and a second end opposite the first end;
a first cylinder coupled to the first end of the drive chamber;
a first block coupled to a distal end of the first cylinder, the first block having a first side, a second side opposite the first side, and a first edge between the first side and the second side, the first side facing the first cylinder, the first block having a first inlet passage extending between the first edge and the second side, the first block having a first outlet passage extending between the first edge and the first side;
a second cylinder coupled to the second end of the drive chamber;
a second block coupled to a distal end of the second cylinder, the second block having a third side, a fourth side opposite the third side, and a second edge between the third side and the fourth side, the third side facing the second cylinder, the second block having a second inlet passage extending between the second edge and the third side, the second block having a second outlet passage extending between the second edge and the third side;
a rod extending through the drive chamber, a first portion of the rod extending into the first cylinder, a second portion of the rod extending into the second cylinder;
a first piston coupled to the first portion of the rod and disposed in the first cylinder, the first piston dividing an interior volume of the first cylinder into a first interior volume portion and a second interior volume portion, the first interior volume portion fluidly coupled via the first inlet passage of the first block to a fluid inlet port of the fluid transfer apparatus;
a second piston coupled to the second portion of the rod and disposed in the second cylinder, the second piston dividing an interior volume of the second cylinder into a third interior volume portion and a fourth interior volume portion, the third interior volume portion fluidly coupled via the second outlet passage of the second block to a fluid outlet port of the fluid transfer apparatus, the first outlet passage of the first block fluidly coupled to the second inlet passage of the second block; and
a third piston coupled to the rod and disposed in the drive chamber, the third piston moveable in a first movement and a second movement to move the first and second pistons in a reciprocal manner, such that:
during the first movement, fluid is drawn into the first interior volume portion of the first cylinder and fluid in the third interior volume portion of the second cylinder is pushed to the fluid outlet port, and
during the second movement, fluid in the first interior volume portion of the first cylinder is transferred to the third interior volume portion of the second cylinder.