Shape memory alloy powered hydraulic accumulator having actuation plates
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F15B-005/00
E21B-033/035
F16D-031/02
F15B-015/08
F16K-031/00
F15B-001/02
F03G-007/06
B25J-009/10
E21B-033/064
E21B-041/00
출원번호
US-0841995
(2010-07-22)
등록번호
US-9145903
(2015-09-29)
발명자
/ 주소
Lewis, Garrett
Song, Gangbing
Patil, Devendra
출원인 / 주소
Cameron International Corporation
대리인 / 주소
Fletcher Yoder, P.C.
인용정보
피인용 횟수 :
2인용 특허 :
15
초록▼
A system, in certain embodiments, includes an accumulator having a first plate with a first plurality of holes and a second plate with a second plurality of holes. The second plate is positioned at an offset from the first plate, and the second plate is moveable relative to the first plate to adjust
A system, in certain embodiments, includes an accumulator having a first plate with a first plurality of holes and a second plate with a second plurality of holes. The second plate is positioned at an offset from the first plate, and the second plate is moveable relative to the first plate to adjust a fluid pressure. The accumulator also includes a plurality of shape memory alloy wires extending between the first and second plates, wherein the plurality of shape memory alloy wires extend through the first and second plurality of holes.
대표청구항▼
1. A system, comprising: an accumulator configured to store a hydraulic fluid to operate subsea equipment, wherein the accumulator comprises: a pressure balancer configured to pressure balance the accumulator in a subsea environment;a piston;a first plate;a second plate coupled to the piston, wherei
1. A system, comprising: an accumulator configured to store a hydraulic fluid to operate subsea equipment, wherein the accumulator comprises: a pressure balancer configured to pressure balance the accumulator in a subsea environment;a piston;a first plate;a second plate coupled to the piston, wherein the second plate is positioned at an offset from the first plate, and the second plate is moveable relative to the first plate to adjust a fluid pressure with the piston;a plurality of shape memory alloy wires extending between the first and second plates; anda controller with a memory and instructions, wherein the controller adjusts a supply of electrical current through the plurality of shape memory alloy wires based at least in part on a measurement sensed from the accumulator. 2. The system of claim 1, wherein the first plate comprises a first plurality of holes comprising a first circular pattern of holes, and the second plate comprises a second plurality of holes comprising a second circular pattern of holes. 3. The system of claim 2, wherein the first circular pattern of holes comprises a first plurality of concentric rings of holes, and the second circular pattern of holes comprises a second plurality of concentric rings of holes. 4. The system of claim 3, wherein the first plurality of concentric rings of holes comprises at least three concentric rings of holes, and the second plurality of concentric rings of holes comprises at least three concentric rings of holes. 5. The system of claim 1, wherein the plurality of shape memory alloy wires comprises a first shape memory alloy wire winding back and forth between the first and second plates, and the first shape memory alloy wire extends through a first ring of holes in the first plate and a second ring of holes in the second plate. 6. The system of claim 5, wherein the plurality of shape memory alloy wires comprises a second shape memory alloy wire winding back and forth between the first and second plates, and the second shape memory alloy wire extends through a third ring of holes in the first plate and a fourth ring of holes in the second plate. 7. The system of claim 1, further comprising a first insulating material between the first plate and the plurality of shape memory alloy wires, and a second insulating material between the second plate and the plurality of shape memory alloy wires. 8. The system of claim 7, wherein the first insulating material comprises a first plurality of insulating sleeves disposed in a first plurality of holes, and the second insulating material comprises a second plurality of insulating sleeves disposed in a second plurality of holes. 9. The system of claim 7, wherein the first insulating material comprises a first insulating layer on the first plate, the plurality of shape memory alloy wires, or a combination thereof, wherein the second insulating material comprises a second insulating layer on the second plate, the plurality of shape memory alloy wires, or a combination thereof. 10. The system of claim 1, wherein the first plate is made of a first insulating material, and the second plate is made of a second insulating material. 11. The system of claim 1, further comprising: a first cylinder configured to receive a fluid within an internal volume of the first cylinder; andthe piston configured to move axially within the first cylinder, wherein axial movement of the piston within the first cylinder adjusts the internal volume of the first cylinder; and the second plate is moveable with the piston. 12. The system of claim 1, further comprising a power supply configured to supply the electrical current through the plurality of shape memory alloy wires in response to the controller. 13. The system of claim 1, wherein the pressure balancer comprises a bladder. 14. The system of claim 1, further comprising the subsea equipment coupled to the accumulator. 15. A system, comprising: an accumulator configured to store hydraulic fluid to operate subsea equipment, wherein the accumulator comprises: a shape memory alloy powered drive, comprising: a first plate;a plurality of shape memory alloy wires; anda controller comprising a memory and instructions that adjusts a supply of electrical current through the shape memory alloy wires to adjust a force on the first plate to operate the subsea equipment with the hydraulic fluid. 16. The system of claim 15, wherein the accumulator is coupled to a wellhead component, and the accumulator adjusts a fluid pressure of the hydraulic fluid. 17. The system of claim 15, wherein the shape memory alloy powered drive further comprises a piston disposed in a cylinder about a fluid volume, and the controller adjusts the supply of electrical current through the shape memory wires to adjust the fluid volume via movement of the first plate. 18. The system of claim 15, wherein the shape memory alloy is made of a material comprising Nitinol. 19. The system of claim 15, wherein the accumulator further comprises a pressure balancer configured to pressure balance an interior relative to an exterior of the accumulator in a subsea environment. 20. A method for actuating an accumulator configured to store hydraulic fluid to operate subsea equipment, comprising: supplying an electrical current to a plurality of shape memory alloy wires extending through holes in first and second plates of the accumulator to cause movement of the first plate relative to the second plate, wherein the accumulator stores a hydraulic fluid to operate the subsea equipment; andadjusting, via a controller, the supply of electrical current through the shape memory alloy wires based at least in part on a measurement sensed from the accumulator to control a supply of the hydraulic fluid from the accumulator to the subsea equipment. 21. The method of claim 20, further comprising adjusting, via the controller, a fluid pressure, a fluid volume, or a combination thereof, in response to movement of the first plate relative to the second plate. 22. The method of claim 20, further comprising driving a wellhead component in response to movement of the first plate relative to the second plate. 23. The system of claim 20, further comprising pressure balancing the accumulator in a subsea environment with a bladder.
Whitehead Charles A. (3508 S. Woodridge Rd. Birmingham AL 36330) Groom Kenneth M. (119 Hillcrest Loop Enterprise AL 36330), Hydraulic shape memory alloy actuator.
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