公开(公告)号：US11519403B1

公开(公告)日：2022-12-06

申请号：US17483452

申请日：2021-09-23

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: F04B5/02 ,  F04B39/12 ,  F04B9/109

Abstract: A compressor comprises a first cylinder for compressing a fluid and a second cylinder for driving a piston in the first cylinder. The first cylinder comprises a chamber with first and second ends. The piston is reciprocally movable along an axial direction of the chamber for compressing a fluid. Three or more first ports at the first end include at least one first inlet port and at least one first outlet port. Three or more second ports at the second end include at least one second inlet port and at least one second outlet port. Each port has an axial direction parallel to the axial direction of the chamber. A check valve is connected inline with each port along the axial direction of the port.

公开(公告)号：US20190032652A1

公开(公告)日：2019-01-31

申请号：US16147188

申请日：2018-09-28

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: F04B49/00 ,  F04B47/04 ,  E21B43/12 ,  F04B9/113 ,  F04B27/02 ,  F04B49/12 ,  F04B35/00 ,  E21B4/00

CPC classification number: F04B49/002 ,  E21B4/00 ,  E21B43/126 ,  F04B9/113 ,  F04B27/02 ,  F04B35/00 ,  F04B35/008 ,  F04B47/04 ,  F04B49/12 ,  F04B2201/0202 ,  F04B2201/121 ,  F04B2203/09

Abstract: Methods and systems are provided to adaptively control a hydraulic fluid supply to supply a driving fluid for applying a driving force on a piston in a gas compressor, the driving force being cyclically reversed between a first direction and a second direction to cause the piston to reciprocate in strokes. During a first stroke of the piston, a speed of the piston, a temperature of the driving fluid, and a load pressure applied to the piston is monitored. Reversal of the driving force after the first stroke is controlled based on the speed, load pressure, and temperature.

公开(公告)号：US10087924B2

公开(公告)日：2018-10-02

申请号：US15786369

申请日：2017-10-17

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: F04B49/00 ,  F04B9/113 ,  F04B49/12 ,  E21B4/00 ,  F04B27/02

Abstract: Methods and systems are provided to adaptively control a hydraulic fluid supply to supply a driving fluid for applying a driving force on a piston in a gas compressor, the driving force being cyclically reversed between a first direction and a second direction to cause the piston to reciprocate in strokes. During a first stroke of the piston, a speed of the piston, a temperature of the driving fluid, and a load pressure applied to the piston is monitored. Reversal of the driving force after the first stroke is controlled based on the speed, load pressure, and temperature.

公开(公告)号：US10072487B2

公开(公告)日：2018-09-11

申请号：US15656252

申请日：2017-07-21

Applicant: I-JACK TECHNOLOGIES INCORPORATED

Inventor： Dan McCarthy

IPC: E21B43/12 ,  E21B47/00 ,  F04B9/107 ,  F04B47/00 ,  F04B41/02 ,  F04B49/22 ,  F04B1/32 ,  F04B49/06

CPC classification number: E21B43/129 ,  E21B43/126 ,  E21B47/0007 ,  F04B1/12 ,  F04B1/295 ,  F04B1/324 ,  F04B9/107 ,  F04B41/02 ,  F04B47/00 ,  F04B47/04 ,  F04B47/08 ,  F04B49/065 ,  F04B49/22 ,  F04B49/225 ,  F04B2201/121 ,  F04B2203/091

Abstract: A lift apparatus and method for driving a downhole reciprocating pump is disclosed. The apparatus includes a hydraulic cylinder having a piston and a hydraulic fluid port, the piston being coupled to a rod for driving the reciprocating pump, the piston being moveable between first and second ends of the cylinder in response to a flow of hydraulic fluid through the hydraulic fluid port. The apparatus also includes a variable displacement hydraulic pump coupled to receive a substantially constant rotational drive from a prime mover for operating the hydraulic pump, the hydraulic pump having an outlet and being responsive to a displacement control signal to draw hydraulic fluid from a reservoir and to produce a controlled flow of hydraulic fluid at the outlet. The apparatus also includes a hydraulic fluid line connected to deliver hydraulic fluid from the outlet of the hydraulic pump through the hydraulic fluid port to the cylinder for causing the piston to move through an upstroke away from the first end and toward the second end of the cylinder. The apparatus further includes a valve connected between the hydraulic fluid port and the reservoir, the valve being responsive to a valve control signal for controlling discharge of hydraulic fluid from the hydraulic fluid port of the cylinder back to the reservoir to facilitate movement of the piston through a downstroke away from the second end toward the first end of the cylinder. The valve is operable to prevent flow of hydraulic fluid through the valve during the upstroke and the hydraulic pump is operable to prevent flow of hydraulic fluid back into the outlet of the hydraulic pump during the downstroke.