IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0588896
(2006-10-27)
|
등록번호 |
US-7415937
(2008-08-26)
|
발명자
/ 주소 |
- Giesler,William L.
- Gaines,Louie T.
- Philips,Jeff C.
|
출원인 / 주소 |
- Honeywell International Inc.
|
대리인 / 주소 |
Ingrassia, Fisher & Lorenz, P.C.
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
10 |
초록
▼
An actuator that at least inhibits the deleterious effects of corrosive fluids, such as seawater, does not rely on relatively expensive materials, and is capable of operation and relatively high pressures includes two sealed buffer chambers. One buffer chamber is supplied with a buffer fluid, and th
An actuator that at least inhibits the deleterious effects of corrosive fluids, such as seawater, does not rely on relatively expensive materials, and is capable of operation and relatively high pressures includes two sealed buffer chambers. One buffer chamber is supplied with a buffer fluid, and the other buffer chamber is maintained at a vacuum pressure. The buffer fluid in the first buffer chamber helps remove any residual corrosive fluid that may remain on the actuator translation member as it moves into the actuator housing, and any fluid that leaks into the second chamber will boil as a result of the vacuum pressure therein.
대표청구항
▼
We claim: 1. An actuation system, comprising: an actuator housing; a translation member disposed at least partially within, and at least partially movable into and out of, the housing, the translation member adapted to receive a drive force and operable, upon receipt thereof, to translate in either
We claim: 1. An actuation system, comprising: an actuator housing; a translation member disposed at least partially within, and at least partially movable into and out of, the housing, the translation member adapted to receive a drive force and operable, upon receipt thereof, to translate in either a first direction or a second direction; a plurality of seals disposed between the actuator housing and the translation member, the plurality of seals defining at least a first buffer chamber and a second buffer chamber; a reverse osmosis system in fluid communication with the first buffer chamber and operable to supply a pressurized buffer fluid thereto; and a vacuum pressure source in fluid communication with the second buffer chamber, to thereby maintain the second buffer chamber at least at a vacuum pressure. 2. The actuation system of claim 1, wherein the reverse osmosis system comprises: a reverse osmosis pump having a fluid inlet and a fluid outlet, the reverse osmosis pump operable to draw fluid from a first fluid source at a first pressure into the fluid inlet and discharge pressurized fluid at a second, higher pressure; and a reverse osmosis membrane assembly in fluid communication between the reverse osmosis pump fluid outlet and the first buffer chamber, the reverse osmosis membrane assembly operable to remove a solute from the pressurized fluid. 3. The actuation system of claim 1, wherein the reverse osmosis system is at least partially mounted on the actuator housing. 4. The actuation system of claim 1, wherein the vacuum pressure source comprises: a vacuum pump having at least an inlet in fluid communication with the second buffer chamber, the vacuum pump operable to maintain the second buffer chamber at least at the vacuum pressure. 5. The actuation system of claim 4, wherein the vacuum pump is mounted on the actuator housing. 6. The actuation system of claim 1, further comprising: a first buffer chamber sensor coupled to the actuator housing and configured to sense a parameter representative of the presence of a corrosive fluid in the first buffer chamber. 7. The actuation system of claim 1, further comprising: a second buffer chamber sensor coupled to the actuator housing and configured to sense second buffer chamber pressure. 8. The actuation system of claim 1, further comprising: an actuation member coupled to the translation member, the actuation member adapted to receive a rotational input force and configured, upon receipt thereof, to supply the drive force to the translation member. 9. The actuation system of claim 8, further comprising: a motor coupled to the actuation member and operable to selectively supply the rotational input force thereto; and a motor housing surrounding at least a portion of the motor and at least partially defining the second buffer chamber. 10. The actuation system of claim 1, wherein: the actuator housing defines a hydraulic fluid chamber, the hydraulic fluid chamber adapted to receive hydraulic actuation fluid and in fluid communication with at least a portion of the translation member; and the hydraulic actuation fluid supplies the drive force to the translation member. 11. The actuation system of claim 10, further comprising: a hydraulic fluid pump in fluid communication with the hydraulic fluid chamber and operable to supply a flow of the hydraulic actuation fluid into and through the hydraulic fluid chamber; and a sensing system disposed between the hydraulic chamber and the hydraulic fluid pump and operable to sense the presence of moisture in the hydraulic fluid. 12. The actuation system of claim 11, wherein the sensing system is configured to sense a parameter representative of an amount of water in the hydraulic fluid. 13. The actuation system of claim 11, wherein the sensing system is configured to sense an amount of water separated from the hydraulic fluid. 14. The actuation system of claim 11, wherein the sensing system is configured to sense an amount of salt in the hydraulic fluid. 15. An actuation system, comprising: an actuator housing; a translation member disposed at least partially within, and at least partially movable into and out of, the housing, the translation member adapted to receive a drive force and operable, upon receipt thereof, to translate in either a first direction or a second direction; a plurality of seals disposed between the actuator housing and the translation member, the plurality of seals defining at least a first buffer chamber and a second buffer chamber; and a reverse osmosis system at least partially mounted on the actuator housing, the reverse osmosis system in fluid communication with the first buffer chamber and operable to supply a pressurized buffer fluid thereto. 16. An unmanned underwater vehicle (UUV), comprising: a hull; a plurality of control surfaces movably disposed on the hull; and a plurality of actuators coupled to the hull, each actuator further coupled to one or more of the control surfaces and configured to selectively move the control surfaces, each actuator including: an actuator housing coupled to the hull, a translation member coupled to a control surface and disposed at least partially within, and at least partially movable into and out of, the housing, the translation member adapted to receive a drive force and operable, upon receipt thereof, to translate in either a first direction or a second direction, a plurality of seals disposed between the actuator housing and the translation member, the plurality of seals defining at least a first buffer chamber and a second buffer chamber, a reverse osmosis system in fluid communication with the first buffer chamber and operable to supply a pressurized buffer fluid thereto, and a vacuum pressure source in fluid communication with the second buffer chamber, to thereby maintain the second buffer chamber at least at a vacuum pressure. 17. The UUV of claim 16, wherein the reverse osmosis system comprises: a reverse osmosis pump having a fluid inlet and a fluid outlet, the reverse osmosis pump operable to draw fluid from a first fluid source at a first pressure into the fluid inlet and discharge pressurized fluid at a second, higher pressure; and a reverse osmosis membrane assembly in fluid communication between the reverse osmosis pump fluid outlet and the first buffer chamber, the reverse osmosis membrane assembly operable to remove a solute from the pressurized fluid. 18. The UUV of claim 16, wherein the vacuum pressure source comprises: a vacuum pump having at least an inlet in fluid communication with the second buffer chamber, the vacuum pump operable to maintain the second buffer chamber at least at the vacuum pressure.
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