IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0253446
(2011-10-05)
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등록번호 |
US-8689831
(2014-04-08)
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발명자
/ 주소 |
- Whiting, Frederick Joseph
- Doak, Griffin McNeil
|
출원인 / 주소 |
- Whiting Technologies Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
Rotary valves are provided having an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices. A rotary cage assembly defines an annular cage recess and cage inlet and outlet orifices in communication wit
Rotary valves are provided having an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices. A rotary cage assembly defines an annular cage recess and cage inlet and outlet orifices in communication with the recess and coaxially surrounds the spool for reciprocal rotations thereabout. An actuator assembly is coupled to the rotary cage assembly for moving the rotary cage assembly between open and closed positions. When in the open position the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess. When in the closed position however fluid communication is blocked between at least the cage and spool outlet orifices.
대표청구항
▼
1. A rotary valve comprising: an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices in fluid communication with the inlet and outlet ports, respectively;a rotary cage assembly coaxially surrounding
1. A rotary valve comprising: an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices in fluid communication with the inlet and outlet ports, respectively;a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and oriented cage inlet and outlet orifices in communication with the recess; andan actuator assembly coupled to the rotary cage assembly for moving the rotary cage assembly between an open position wherein the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and a closed position wherein fluid communication is blocked between at least the cage and spool outlet orifices, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, whereinthe spool further defines a bypass port and a bypass orifice in communication therewith, and whereinthe cage further defines a cage bypass orifice in fluid communication with the annular cage recess, and whereinthe cage assembly when in the open condition prevents fluid communication between the cage and spool bypass orifices, but when in the closed condition allows fluid communication between the cage and spool inlet orifices and between the cage and spool bypass orifices, whereby fluid entering the annular cage recess from the spool inlet port through the spool inlet orifice is allowed to flow into the spool bypass port through the cage bypass orifice. 2. A rotary valve assembly as in claim 1, wherein the actuator assembly comprises a rotary actuator coaxially coupled to the cage assembly. 3. A rotary valve assembly comprising: an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices in fluid communication with the inlet and outlet ports, respectively;a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and oriented cage inlet and outlet orifices in communication with the recess; andan actuator assembly coupled to the rotary cage assembly for moving the rotary cage assembly between an open position wherein the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and a closed position wherein fluid communication is blocked between at least the cage and spool outlet orifices, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, whereinthe actuator assembly comprises a rotary actuator coaxially coupled to the cage assembly, and whereinthe cage and actuator assemblies include cage and actuator driving dogs, respectively, and wherein actuator assembly further includes a coupling block operatively coupling the cage and actuator driving dogs to one another to allow for torque to be transmitted between the actuator assembly to the cage assembly. 4. A rotary valve assembly comprising: an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices in fluid communication with the inlet and outlet ports, respectively;a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and oriented cage inlet and outlet orifices in communication with the recess; andan actuator assembly coupled to the rotary cage assembly for moving the rotary cage assembly between an open position wherein the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and a closed position wherein fluid communication is blocked between at least the cage and spool outlet orifices, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, whereinthe actuator assembly further comprises (a) a rotary actuator coaxially coupled to the cage assembly, and (b) a rectilinearly moveable actuator member coupled operative to the rotary actuator member such that reciprocal rectilinear movements of the rectilinearly moveable actuator member are translated into reciprocal rotational movements of the rotary actuator member. 5. A rotary valve assembly as in claim 4, wherein the rectilinearly moveable actuator member includes a slot, and wherein the rotary actuator member includes an outwardly protruding actuator finger received within the slot. 6. A rotary valve assembly comprising: an elongate spool defining coaxially aligned inlet and outlet ports for respectively receiving and discharging a fluid, and spool inlet and outlet orifices in fluid communication with the inlet and outlet ports, respectively;a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and oriented cage inlet and outlet orifices in communication with the recess; andan actuator assembly coupled to the rotary cage assembly for moving the rotary cage assembly between an open position wherein the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and a closed position wherein fluid communication is blocked between at least the cage and spool outlet orifices, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, whereinthe cage assembly includes an inner cage member which defines the cage inlet and outlet orifices, and an outer cage member coaxially surrounding and integrally coupled to the inner cage member, wherein the cage recess is defined between the inner and outer cage members. 7. A rotary valve assembly as in claim 6, wherein the spool further defines a bypass port and a bypass orifice in communication therewith, and whereinthe cage further defines a cage bypass orifice in fluid communication with the annular cage recess, and whereinthe cage assembly when in the open condition prevents fluid communication between the cage and spool bypass orifices, but when in the closed condition allows fluid communication between the cage and spool inlet orifices and between the cage and spool bypass orifices, whereby fluid entering the annular cage recess from the spool inlet port through the spool inlet orifice is allowed to flow into the spool bypass port through the cage bypass orifice. 8. A rotary valve assembly as in claim 6, wherein the outer cage defines a cage slot, and wherein the inner cage defines an outwardly protruding lug received within the cage slot so as to integrally couple the inner and outer cages to one another. 9. A rotary valve assembly comprising: a fixed position spool defining fluid inlet and outlet ports;a rotary cage assembly surrounding the spool for rotary movement thereabout between an open position wherein fluid communication is established between the inlet and outlet ports, and a closed position wherein fluid communication is blocked between the inlet and outlet ports; anda rotary actuator assembly coaxially positioned relative to the rotary cage and spool for moving the rotary cage between the open and closed positions thereof, whereinthe actuator assembly further comprises a rotary actuator member and a rectilinearly moveable actuator member coupled operative to the rotary actuator member such that reciprocal rectilinear movements of the rectilinearly moveable actuator member are translated into reciprocal rotational movements of the rotary actuator member. 10. A rotary valve assembly as in claim 9, wherein the rectilinearly moveable actuator member includes a slot, and wherein the rotary actuator member includes an outwardly protruding actuator finger received within the slot. 11. A rotary valve assembly comprising: a fixed position spool defining fluid inlet and outlet ports;a rotary cage assembly surrounding the spool for rotary movement thereabout between an open position wherein fluid communication is established between the inlet and outlet ports, and a closed position wherein fluid communication is blocked between the inlet and outlet ports; anda rotary actuator assembly coaxially positioned relative to the rotary cage and spool for moving the rotary cage between the open and closed positions thereof, whereinthe spool defines spool inlet and outlet orifices in fluid communication with the inlet and outlet ports, respectively; andthe cage assembly includes an inner cage member which defines cage inlet orifice and outlet orifices, an outer cage member coaxially surrounding and integrally coupled to the inner cage member, and an annular cage recess defined between the inner and outer cage members which is in fluid communication with the cage inlet and outlet orifices, and whereinthe cage inlet and outlet orifices are moveable into fluid communication with the spool inlet and outlet orifices, respectively, when the cage assembly is moved into the open position thereof. 12. A rotary valve assembly as in claim 11, wherein the spool further defines a bypass port and a bypass orifice in communication therewith, and whereinthe cage further defines a cage bypass orifice in fluid communication with the annular cage recess, and whereinthe cage assembly when in the open position prevents fluid communication between the cage and spool bypass orifices, but when in the closed position allows fluid communication between the cage and spool inlet orifices and between the cage and spool bypass orifices, whereby fluid entering the annular cage recess from the spool inlet port through the spool inlet orifice is allowed to flow into the spool bypass port through the cage bypass orifice. 13. A fluid delivery system comprising: a manifold,a rotary valve assembly operatively positioned within the manifold and including a fluid inlet port for receiving fluid under pressure from a fluid source and a fluid outlet port coaxially aligned with the fluid inlet port for delivering fluid from the fluid source; andan actuator assembly coaxially coupled to the rotary valve assembly for rotationally moving the rotary valve between open and closed positions wherein fluid from the fluid source is selectively allowed to be and prevented from being, respectively, delivered through the outlet port, whereinthe rotary valve assembly includes,(a) an elongate spool defining the coaxially aligned inlet and outlet ports for respectively receiving and discharging the fluid, and spool inlet and outlet orifices;(b) a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and cage inlet and outlet orifices in communication with the recess, wherein(c) when the actuator assembly moves the rotary cage assembly into the open position, the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and wherein(d) when the actuator assembly moves the rotary cage assembly into the closed position, respective fluid communication between at least the cage and spool outlet orifices is blocked, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, and whereinthe spool further defines a bypass port and a bypass orifice in communication therewith, and whereinthe cage further defines a cage bypass orifice in fluid communication with the annular cage recess, and whereinthe cage assembly when in the open condition prevents fluid communication between the cage and spool bypass orifices, but when in the closed condition allows fluid communication between the cage and spool inlet orifices and between the cage and spool bypass orifices, whereby fluid entering the annular cage recess from the spool inlet port through the spool inlet orifice is allowed to flow into the spool bypass port through the cage bypass orifice. 14. A fluid delivery system as in claim 13, wherein the actuator assembly comprises a rotary actuator coaxially coupled to the cage assembly. 15. A fluid delivery system comprising: a manifold,a rotary valve assembly operatively positioned within the manifold and including a fluid inlet port for receiving fluid under pressure from a fluid source and a fluid outlet port coaxially aligned with the fluid inlet port for delivering fluid from the fluid source; andan actuator assembly coaxially coupled to the rotary valve assembly for rotationally moving the rotary valve between open and closed positions wherein fluid from the fluid source is selectively allowed to be and prevented from being, respectively, delivered through the outlet port, whereinthe rotary valve assembly includes,(a) an elongate spool defining the coaxially aligned inlet and outlet ports for respectively receiving and discharging the fluid, and spool inlet and outlet orifices;(b) a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and cage inlet and outlet orifices in communication with the recess, wherein(c) when the actuator assembly moves the rotary cage assembly into the open position, the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and wherein(d) when the actuator assembly moves the rotary cage assembly into the closed position, respective fluid communication between at least the cage and spool outlet orifices is blocked, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, and whereinthe actuator assembly comprises a rotary actuator coaxially coupled to the cage assembly, and whereinthe cage and actuator assemblies include cage and actuator driving dogs, respectively, and wherein actuator assembly further includes a coupling block operatively coupling the cage and actuator driving dogs to one another to allow for torque to be transmitted between the actuator assembly to the cage assembly. 16. A fluid delivery system comprising: a manifold,a rotary valve assembly operatively positioned within the manifold and including a fluid inlet port for receiving fluid under pressure from a fluid source and a fluid outlet port coaxially aligned with the fluid inlet port for delivering fluid from the fluid source; andan actuator assembly coaxially coupled to the rotary valve assembly for rotationally moving the rotary valve between open and closed positions wherein fluid from the fluid source is selectively allowed to be and prevented from being, respectively, delivered through the outlet port, whereinthe rotary valve assembly includes,(a) an elongate spool defining the coaxially aligned inlet and outlet ports for respectively receiving and discharging the fluid, and spool inlet and outlet orifices;(b) a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and cage inlet and outlet orifices in communication with the recess, wherein(c) when the actuator assembly moves the rotary cage assembly into the open position, the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and wherein(d) when the actuator assembly moves the rotary cage assembly into the closed position, respective fluid communication between at least the cage and spool outlet orifices is blocked, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, and whereinthe actuator assembly comprises a rotary actuator coaxially coupled to the cage assembly, and whereinthe actuator assembly further comprises a rectilinearly moveable actuator member coupled operative to the rotary actuator member such that reciprocal rectilinear movements of the rectilinearly moveable actuator member are translated into reciprocal rotational movements of the rotary actuator member. 17. A fluid delivery system as in claim 16, wherein the rectilinearly moveable actuator member includes a slot, and wherein the rotary actuator member includes an outwardly protruding actuator finger received within the slot. 18. A fluid delivery system comprising: a manifold,a rotary valve assembly operatively positioned within the manifold and including a fluid inlet port for receiving fluid under pressure from a fluid source and a fluid outlet port coaxially aligned with the fluid inlet port for delivering fluid from the fluid source; andan actuator assembly coaxially coupled to the rotary valve assembly for rotationally moving the rotary valve between open and closed positions wherein fluid from the fluid source is selectively allowed to be and prevented from being, respectively, delivered through the outlet port, whereinthe rotary valve assembly includes,(a) an elongate spool defining the coaxially aligned inlet and outlet ports for respectively receiving and discharging the fluid, and spool inlet and outlet orifices;(b) a rotary cage assembly coaxially surrounding the spool and mounted for reciprocal rotations thereabout, wherein the cage assembly defines an annular cage recess and cage inlet and outlet orifices in communication with the recess, wherein(c) when the actuator assembly moves the rotary cage assembly into the open position, the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, and wherein(d) when the actuator assembly moves the rotary cage assembly into the closed position, respective fluid communication between at least the cage and spool outlet orifices is blocked, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port, and whereinthe cage assembly includes an inner cage member which defines the cage inlet and outlet orifices, and an outer cage member coaxially surrounding and integrally coupled to the inner cage member, wherein the cage recess is defined between the inner and outer cage members. 19. A fluid delivery system as in claim 18, wherein the spool further defines a bypass port and a bypass orifice in communication therewith, and whereinthe cage further defines a cage bypass orifice in fluid communication with the annular cage recess, and whereinthe cage assembly when in the open condition prevents fluid communication between the cage bypass orifice and the spool bypass orifice, but when in the closed condition allows fluid communication between the cage and spool inlet orifices and between the cage and spool bypass orifices, whereby fluid entering the annular cage recess from the spool inlet port through the spool inlet orifice is allowed to flow into the spool bypass port through the cage bypass orifice. 20. A fluid delivery system as in claim 18, wherein the outer cage defines a cage slot, and wherein the inner cage defines an outwardly protruding lug received within the cage slot so as to integrally couple the inner and outer cages to one another. 21. A fluid delivery system as in claim 19, further comprising a pressurized fluid supply conduit for supply the fluid under pressure from the fluid source to the spool inlet port, and a fluid return conduit in fluid communication with the spool bypass port returning the fluid to the fluid source. 22. A method of delivering fluid under pressure from a fluid source comprising: (a) providing an elongate fluid supply spool having coaxially aligned spool inlet and outlet ports, spool inlet and outlet orifices in respective fluid communication with the spool inlet and outlet ports, a bypass port and a bypass orifice in communication with the bypass port;(b) supplying fluid under pressure to the spool inlet port associated with the spool;(c) delivering fluid through the spool outlet port by operating a rotary cage assembly surrounding the spool and having an annular cage recess, and cage inlet and outlet orifices so that the rotary cage assembly rotationally moves from a closed position wherein fluid communication is blocked between at least the cage and spool outlet orifices, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port through the annular cage recess, and into an open position wherein the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess; and(d) rotating the cage assembly into the closed position so that a cage bypass orifice in communication with the annular cage recess is brought into fluid communication with the spool bypass orifice so that fluid entering the annular cage recess from the spool inlet port through the spool inlet orifice is allowed to flow into the spool bypass port through the cage bypass orifice. 23. A method of delivering fluid under pressure from a fluid source comprising: (a) providing an elongate fluid supply spool having coaxially aligned spool inlet and outlet ports spool inlet and outlet orifices in respective fluid communication with the spool inlet and outlet ports;(b) supplying fluid under pressure to the spool inlet port associated with the spool; and(c) delivering fluid through the spool outlet port by operating a rotary cage assembly surrounding the spool and having an annular cage recess, and cage inlet and outlet orifices so that the rotary cage assembly rotationally moves from a closed position wherein fluid communication is blocked between at least the cage and spool outlet orifices, whereby fluid is prevented from flowing from the spool inlet port to the spool outlet port through the annular cage recess, and into an open position wherein the cage inlet and outlet orifices are in fluid communication with the spool inlet and outlet orifices, respectively, to allow fluid to flow from the spool inlet port to the spool outlet port by way of the annular cage recess, wherein step (c) comprises:(c1) operating a rectilinearly moveable actuator member coupled to a rotary actuator member in such a manner that the rectilinear movement of the rectilinearly moveable actuator member is translated into rotary movement of the rotary actuator member. 24. The method of claim 23, wherein step (c) comprises alternately operating pneumatic valves so as to selectively move the rectilinearly moveable actuator between one and another opposite positions corresponding to the closed and open positions, respectively of the cage assembly.
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