PUMPING SYSTEM WITH ACTUATOR
A pumping system is provided which includes a motor coupled with a transmission and a pump. The pump includes a housing with a chamber, a plunger coupled with the motor and the transmission and translatable into and out of the chamber creating pressure changes in the chamber, an entry valve at an inlet in the housing to the chamber, an exit valve at an outlet in the housing to the chamber, and an actuator coupled with the entry valve. The actuator is operable to hold the entry valve in an open configuration independent of pressure changes created by the translation of the plunger.
Latest HALLIBURTON ENERGY SERVICES, INC. Patents:
- GRADATIONAL RESISTIVITY MODELS WITH LOCAL ANISOTROPY FOR DISTANCE TO BED BOUNDARY INVERSION
- STEERABILITY OF DOWNHOLE RANGING TOOLS USING ROTARY MAGNETS
- Systems and methods to determine an activity associated with an object of interest
- Depositing coatings on and within housings, apparatus, or tools utilizing counter current flow of reactants
- Depositing coatings on and within housings, apparatus, or tools utilizing pressurized cells
The present disclosure relates generally to pumping systems. In particular, the present disclosure relates to pumping systems with an actuator to reduce a resistive torque load while a transmission shifts gears.
BACKGROUNDMotors can be used to provide power to pumps. To control or increase the speed of the pump, transmissions can be used to shift gears. When pumping fluid, the fluid flows through an entry valve into a recess which includes a plunger. The entry valve then closes, the plunger compresses the fluid, and the fluid flows through an exit valve under pressure. During such a procedure, the fluid imparts a resistive torque load on the transmission. As such, when increasing power and shifting gears under load, heat may be generated in the transmission converter and clutches, and the life of the transmission may be shortened.
Implementations of the present technology will now be described, by way of example only, with reference to the attached figures, wherein:
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the examples described herein. However, it will be understood by those of ordinary skill in the art that the examples described herein can be practiced without these specific details. In other instances, methods, procedures and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected.
Disclosed herein is a pumping system. The pumping system includes a motor coupled with a transmission having a plurality of gears to provide power to a pump. The pump includes a housing with a chamber. A plunger is coupled with the motor and is translatable into and out of the chamber. The pump also includes an entry valve at an inlet to the chamber and an exit valve at an outlet to the chamber. The entry valve is transitionable between an open configuration where fluid can pass through the inlet into and out of the chamber and a closed configuration where fluid cannot pass through the inlet. The pump also includes an actuator which can transition the entry valve to the open configuration and/or hold the entry valve in the open configuration until released, independent of the pressure changes caused by the movement of the plunger. When the actuator is not actuated, the pump operates as normal. For example, as the plunger retracts from the chamber, a vacuum in the chamber is created, and the entry valve transitions to the open configuration. Fluid then flows through the inlet into the chamber. As the plunger extends into the chamber, the fluid is compressed, the entry valve closes, and at a predetermined pressure, the fluid flows through the outlet and the exit valve.
When the actuator is actuated, the entry valve is transitioned to the open configuration and/or held in the open configuration until the actuator is released, independent of the pressure changes caused by the movement of the plunger. As such, the fluid can flow into and out of the chamber through the inlet such that a resistive torque load created by the compression of the fluid is reduced. As such, the transmission can shift gears without experiencing as high, or none, of the resistive torque load. The transmission life can thus be extended.
The system can be employed in an exemplary pumping system 1 shown, for example, in
A motor 10 (shown in
The motor 10 is coupled with a plunger 104 (shown in
As shown in
The pumping system 1 also includes an actuator 200. The actuator 200 is coupled with the entry valve 106. The actuator 200 is operable to hold or maintain the entry valve in the open configuration independent of the pressure changes between inside and outside the chamber 102. The actuator 200 can be positioned within the pump 100 or, as illustrated in
In
Also due to the pressure differential created by the retraction of the plunger 104, an exit valve 108 at an outlet 22 in the housing 101 to the chamber 102 transitions to a closed configuration to prohibit fluid flow through the outlet 22 from the chamber 102. The exit valve 108, as illustrated in
While a pump 100 with a passive valve system with the entry valve 106 and the exit valve 108 being suction valves is described herein, other valve systems can be utilized so long as the entry valve and the exit valve are operable to transition between an open configuration and a closed configuration to permit fluid flow through the inlet and outlet, respectively. For example, the entry valve 106 and exit valve 108 can be mechanically linked to the plunger 104 such that when the plunger 104 retract, the entry valve 106 transitions to an open configuration and the exit valve transitions to a closed configuration. An exemplary pump 100 may be a Halliburton HT-400.
In
The compression of the fluid 500 when the plunger 104 extends into the chamber 102 and before the exit valve 108 opens creates a resistive force against the extension of the plunger 104 into the chamber 102. As such, a resistive torque load is imparted on the transmission 12 and motor 13. When the transmission 12 shifts gears 13, the resistive torque load can cause heat to be generated as the transmission clutches and torque converter disengage and re-engage during the shift sequence. Accordingly, the life of the transmission 12 may be reduced, leading to increased transmission failures.
To reduce pressure within the chamber 102 and subsequently the resistive torque load, the actuator 200 can be actuated at least when the plunger 104 is extending into the chamber 102, as illustrated in
The actuator 200 includes an actuation cylinder 206, and a protrusion 204. The protrusion 204 is coupled with the entry valve 106. The actuation cylinder 206 can be a pneumatic cylinder, a hydraulic cylinder, or any other suitable mechanism to enact a force to trigger the protrusion 204 to transition and/or hold the entry valve 106 in the open configuration 1000. For the actuation cylinder 206 to push the protrusion 204 to extend from the actuator 200, the actuation cylinder 206 must enact a force on the protrusion 204 that is greater than the force of the entry bias 1060 and valve drag in the fluid stream. As such, when the actuator 200 is actuated, the actuation cylinder 206 imparts a force on the protrusion 204 against the entry valve 106, and the protrusion transitions and/or holds the entry valve 106 in the open configuration 1000. In the illustrated example of
The pressure changes within the chamber 102 are reduced when the actuator 200 is actuated and the entry valve 106 is in the open configuration 1000 because the fluid is able to flow through the inlet 20. In such a state, when the plunger 104 extends into the chamber 102, the compression of the fluid and the pressure within the chamber 102 can be reduced for the fluid to exit the chamber 102. The fluid is able to substantially freely flow through the inlet 20 into and out of the chamber 102. To flow out of the chamber 102 through the inlet 20, some forces may still need to be overcome such that it is not a purely free flow; however, the pressure created within the chamber 102 for the fluid to exit through the inlet 20 is reduced.
When the actuator 200 is actuated and the entry valve 106 is in the open configuration 1000, the transmission 12 can shift gears 13 under the reduced resistive torque load. Shifting gears 13 under the reduced resistive torque load can reduce heat generation in transmission converter and clutches, simplify and reduce equipment risks of bringing pumps on-line, shift transmission ranges and return to lock-up without a resistive torque load, improve transmission life, enable use of motors with narrower torque bands, among other aspects.
Referring to
At block 402, a motor is provided. The motor is coupled with a transmission and a pump. The transmission includes a plurality of gears such that the transmission can switch gears to provide different power to the pump. The pump includes a housing with a chamber and a plunger coupled with the motor. The plunger is translatable along a longitudinal axis into and out of the chamber by the motor. As the plunger translates, the pressure inside the chamber changes. For example, as the plunger retracts out of the chamber, the pressure in the chamber decreases. As the plunger extends into the chamber, the compression of fluid causes the pressure in the chamber to increase. The pump also includes an entry valve at an inlet in the housing to the chamber and an exit valve at an outlet in the housing to the chamber. The entry valve is transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet. The exit valve is operable to permit fluid flow through the outlet from the chamber at a predetermined pressure. When the pressure within the chamber is at or above a predetermined pressure, the exit valve can open to permit fluid flow through the outlet.
The pump further includes an actuator which is coupled with the entry valve. The actuator is operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger. The actuator includes an actuation cylinder and a protrusion. The protrusion can be coupled with the entry valve. The actuation cylinder can be, for example, a pneumatic cylinder or a hydraulic cylinder to trigger the protrusion to hold the entry valve in the open configuration.
When the plunger retracts out of the chamber and the pressure in the chamber decreases, the entry valve transitions to the open configuration and the exit valve transitions to the closed configuration such that fluid can flow through the inlet.
When the plunger extends into the chamber, the fluid within the chamber is compressed, increasing the pressure within the chamber. The entry valve transitions to the closed position to inhibit fluid flow through the inlet to the chamber. The pressure in the chamber continues to increase until a predetermined pressure is reached, and the exit valve transitions to the open configuration such that the fluid flows through the outlet. As the fluid within the chamber is compressed, the fluid resists the movement of the plunger, leading to a resistive torque load to be enacted on the transmission and motor. If the transmission switches gears while the resistive torque load is increased, then excessive slipping may occur, causing heat generation, and decreasing the life of the transmission.
To reduce the resistive torque load and increase transmission life, at block 404, the actuator is actuated to hold the entry valve in the open configuration. The actuation cylinder, when the actuator is actuated, imparts a force on the protrusion against the entry valve and the entry bias, and the protrusion holds the entry valve in the open configuration. In at least one example, the protrusion can hold the entry valve in the open configuration by physically pushing the entry valve open. In other examples, the protrusion can trigger a mechanism such that the entry valve is held open. As such, when the plunger extends into the chamber, the fluid can flow through the inlet and reduces the resistive torque load.
At block 406, the transmission switches gears while the actuator is actuated. In at least one example, the actuator can be actuated automatically when the transmission is going to switch gears. Also, the actuator can be actuated manually.
At block 408, the actuator is released. The actuator can be released when the gear switch is complete. In other examples, the actuator can be released for a predetermined or desired amount of time. For example, if the actuator can be actuated such that the entry valve is held in the open configuration for the duration of the pumping system to reach the desired gear.
Numerous examples are provided herein to enhance understanding of the present disclosure. A specific set of statements are provided as follows.
Statement 1: A pumping system is disclosed comprising: a motor coupled with a transmission, the transmission having a plurality of gear ranges; a pump including: a housing with a chamber; a plunger coupled with the motor and the transmission, the translation of the plunger creating pressure changes in the chamber; an entry valve at an inlet in the housing to the chamber, the entry valve transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet to the chamber; an exit valve at an outlet in the housing to the chamber, the exit valve permitting fluid flow through the outlet from the chamber at a predetermined pressure; and an actuator coupled with the entry valve, the actuator operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger.
Statement 2: A pumping system is disclosed according to Statement 1, wherein the actuator includes an actuation cylinder and a protrusion, wherein the protrusion is coupled with the entry valve.
Statement 3: A pumping system is disclosed according to Statement 2, wherein the actuation cylinder is one of a pneumatic cylinder or a hydraulic cylinder.
Statement 4: A pumping system is disclosed according to Statements 2 or 3, wherein the actuation cylinder, when the actuator is actuated, imparts a force on the protrusion against the entry valve, and the protrusion holds the entry valve in the open configuration.
Statement 5: A pumping system is disclosed according to any of preceding Statements 1-4, wherein the entry valve is coupled with an entry bias which biases the entry valve to the closed configuration.
Statement 6: A pumping system is disclosed according to Statement 5, wherein the plunger, when retracting, transitions the entry valve to the open configuration such that a fluid passes through the inlet into the chamber, wherein when the actuator is not actuated and as the plunger extends, the entry valve transitions to the closed configuration, and the fluid passes through the outlet when at the predetermined pressure.
Statement 7: A pumping system is disclosed according to claim 6, wherein when the actuator is actuated, the entry valve is held in the open configuration independent of the translation of the plunger such that the fluid passes through the inlet, reducing a resistive torque load, wherein the transmission, when the entry valve is in the open configuration, shifts gears under the reduced resistive torque load.
Statement 8: A pump is disclosed comprising: a housing with a chamber; a plunger coupled with a motor and a transmission and translatable along a longitudinal axis into and out of the chamber by the motor; an entry valve at an inlet in the housing to the chamber, the entry valve transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet to the chamber; an exit valve at an outlet in the housing to the chamber, the exit valve permitting fluid flow through the outlet from the chamber at a predetermined pressure; and an actuator coupled with the entry valve, the actuator operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger.
Statement 9: A pump is disclosed according to Statement 8, wherein the actuator includes an actuation cylinder and a protrusion, wherein the protrusion is coupled with the entry valve.
Statement 10: A pump is disclosed according to Statement 9, wherein the actuation cylinder is one of a pneumatic cylinder or a hydraulic cylinder.
Statement 11: A pump is disclosed according to Statements 9 or 10, wherein the actuation cylinder, when the actuator is actuated, imparts a force on the protrusion against the entry valve, and the protrusion holds the entry valve in the open configuration.
Statement 12: A pump is disclosed according to any of preceding Statements 8-11, wherein the entry valve is coupled with an entry bias which biases the entry valve to the closed configuration.
Statement 13: A pump is disclosed according to any of preceding Statements 8-12, wherein the plunger, when retracting from the chamber, transitions the entry valve the open configuration such that a fluid passes through the inlet into the chamber, wherein, when the actuator is not actuated and as the plunger extends into the chamber, the entry valve transitions to the closed configuration, and the fluid passes through the outlet at the predetermined pressure.
Statement 14: A pump is disclosed according to Statement 13, wherein when the actuator is actuated, the entry valve is held in the open configuration independent of the translation of the plunger such that the fluid passes through the entry valve, reducing a resistive torque load.
Statement 15: A method is disclosed comprising: providing a motor coupled with a transmission, the transmission having a plurality of gear ranges, and a pump, the pump includes: a housing with a chamber; a plunger coupled with the motor and the transmission, the plunger translatable along a longitudinal axis into and out of the chamber by the motor and transmission; an entry valve at an inlet in the housing to the chamber, the entry valve transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet to the chamber; an exit valve at an outlet in the housing, the exit valve permitting fluid flow through the outlet from the chamber at a predetermined pressure; and an actuator coupled with the entry valve, the actuator operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger; actuating the actuator to hold the entry valve in the open configuration and permit fluid flow through the inlet such that a resistive torque load is reduced; shifting gears in the transmission under the reduced resistive torque load; and releasing the actuator.
Statement 16: A method is disclosed according to Statement 15, wherein the actuator includes an actuation cylinder and a protrusion, wherein the protrusion is coupled with the entry valve.
Statement 17: A method is disclosed according to Statement 16, wherein the actuation cylinder is one of a pneumatic cylinder or a hydraulic cylinder.
Statement 18: A method is disclosed according to Statements 16 or 17, further comprising, when the actuator is actuated, imparting a force on the protrusion against the entry valve, and holding the entry valve in the open configuration.
Statement 19: A method is disclosed according to any of preceding Statements 15-18, wherein the entry valve is coupled with an entry bias which biases the entry valve to the closed configuration.
Statement 20: A method is disclosed according to any of preceding Statements 15-19, further comprising: retracting the plunger from the chamber which transitions the entry valve, when the actuator is not actuated, to the open configuration such that a fluid passes through the inlet into the chamber, extending the plunger such that the entry valve, when the actuator is not actuated, transitions to the closed configuration, and the fluid passes through the outlet at the predetermined pressure.
The disclosures shown and described above are only examples. Even though numerous characteristics and advantages of the present technology have been set forth in the foregoing description, together with details of the structure and function of the present disclosure, the disclosure is illustrative only, and changes may be made in the detail, especially in matters of shape, size and arrangement of the parts within the principles of the present disclosure to the full extent indicated by the broad general meaning of the terms used in the attached claims. It will therefore be appreciated that the examples described above may be modified within the scope of the appended claims.
Claims
1. A pumping system comprising:
- a motor coupled with a transmission, the transmission having a plurality of gear ranges;
- a pump including: a housing with a chamber; a plunger coupled with the motor and the transmission and translatable along a longitudinal axis into and out of the chamber by the motor and transmission, the translation of the plunger creating pressure changes in the chamber; an entry valve at an inlet in the housing to the chamber, the entry valve transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet to the chamber; an exit valve at an outlet in the housing to the chamber, the exit valve permitting fluid flow through the outlet from the chamber at a predetermined pressure; and an actuator coupled with the entry valve, the actuator operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger.
2. The pumping system of claim 1, wherein the actuator includes an actuation cylinder and a protrusion, wherein the protrusion is coupled with the entry valve.
3. The pumping system of claim 2, wherein the actuation cylinder is one of a pneumatic cylinder or a hydraulic cylinder.
4. The pumping system of claim 2, wherein the actuation cylinder, when the actuator is actuated, imparts a force on the protrusion against the entry valve, and the protrusion holds the entry valve in the open configuration.
5. The pumping system of claim 1, wherein the entry valve is coupled with an entry bias which biases the entry valve to the closed configuration.
6. The pumping system of claim 5, wherein the plunger, when retracting, transitions the entry valve to the open configuration such that a fluid passes through the inlet into the chamber,
- wherein when the actuator is not actuated and as the plunger extends, the entry valve transitions to the closed configuration, and the fluid passes through the outlet when at the predetermined pressure.
7. The pumping system of claim 6, wherein when the actuator is actuated, the entry valve is held in the open configuration independent of the translation of the plunger such that the fluid passes through the inlet, reducing a resistive torque load,
- wherein the transmission, when the entry valve is in the open configuration, shifts gears under the reduced resistive torque load.
8. A pump comprising:
- a housing with a chamber;
- a plunger coupled with a motor and a transmission and translatable along a longitudinal axis into and out of the chamber by the motor;
- an entry valve at an inlet in the housing to the chamber, the entry valve transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet to the chamber;
- an exit valve at an outlet in the housing to the chamber, the exit valve permitting fluid flow through the outlet from the chamber at a predetermined pressure; and
- an actuator coupled with the entry valve, the actuator operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger.
9. The pump of claim 8, wherein the actuator includes an actuation cylinder and a protrusion, wherein the protrusion is coupled with the entry valve.
10. The pump of claim 9, wherein the actuation cylinder is one of a pneumatic cylinder or a hydraulic cylinder.
11. The pump of claim 9, wherein the actuation cylinder, when the actuator is actuated, imparts a force on the protrusion against the entry valve, and the protrusion holds the entry valve in the open configuration.
12. The pump of claim 8, wherein the entry valve is coupled with an entry bias which biases the entry valve to the closed configuration.
13. The pump of claim 8, wherein the plunger, when retracting from the chamber, transitions the entry valve the open configuration such that a fluid passes through the inlet into the chamber,
- wherein, when the actuator is not actuated and as the plunger extends into the chamber, the entry valve transitions to the closed configuration, and the fluid passes through the outlet at the predetermined pressure.
14. The pump of claim 13, wherein when the actuator is actuated, the entry valve is held in the open configuration independent of the translation of the plunger such that the fluid passes through the entry valve, reducing a resistive torque load.
15. A method comprising:
- providing a motor coupled with a transmission, the transmission having a plurality of gear ranges, and a pump, the pump includes: a housing with a chamber; a plunger coupled with the motor and the transmission, the plunger translatable along a longitudinal axis into and out of the chamber by the motor and transmission; an entry valve at an inlet in the housing to the chamber, the entry valve transitionable between an open configuration permitting fluid flow through the inlet to the chamber and a closed configuration preventing fluid flow through the inlet to the chamber; an exit valve at an outlet in the housing, the exit valve permitting fluid flow through the outlet from the chamber at a predetermined pressure; and an actuator coupled with the entry valve, the actuator operable to hold the entry valve in the open configuration independent of the pressure changes created by the translation of the plunger;
- actuating the actuator to hold the entry valve in the open configuration and permit fluid flow through the inlet such that a resistive torque load is reduced;
- shifting gears in the transmission under the reduced resistive torque load; and
- releasing the actuator.
16. The method of claim 15, wherein the actuator includes an actuation cylinder and a protrusion, wherein the protrusion is coupled with the entry valve.
17. The method of claim 16, wherein the actuation cylinder is one of a pneumatic cylinder or a hydraulic cylinder.
18. The method of claim 16, further comprising, when the actuator is actuated, imparting a force on the protrusion against the entry valve, and holding the entry valve in the open configuration.
19. The method of claim 15, wherein the entry valve is coupled with an entry bias which biases the entry valve to the closed configuration.
20. The method of claim 15, further comprising:
- retracting the plunger from the chamber which transitions the entry valve, when the actuator is not actuated, to the open configuration such that a fluid passes through the inlet into the chamber,
- extending the plunger such that the entry valve, when the actuator is not actuated, transitions to the closed configuration, and the fluid passes through the outlet at the predetermined pressure.
Type: Application
Filed: Dec 17, 2017
Publication Date: Sep 3, 2020
Applicant: HALLIBURTON ENERGY SERVICES, INC. (Houston, TX)
Inventors: Timothy Holiman HUNTER (Duncan, OK), Stanley Vernon STEPHENSON (Duncan, OK)
Application Number: 16/760,588