A valve assembly comprises a closure element disposed in a flow control duct, a fluid-driven actuator assembly, a shaft operable to translate linear movement of the actuator assembly into rotation of the closure element, and an integral filter and pressure regulator unit disposed in line with an act
A valve assembly comprises a closure element disposed in a flow control duct, a fluid-driven actuator assembly, a shaft operable to translate linear movement of the actuator assembly into rotation of the closure element, and an integral filter and pressure regulator unit disposed in line with an actuator fluid supply passage. The actuator fluid supply passage extends between the flow control duct and the actuator assembly. The integral filter and pressure regulator unit includes a regulator housing having at least one cylindrical wall surrounding a vent cavity and a regulator cavity. Filter media is secured to the regulator housing and is disposed across a regulator orifice in communication with the regulator cavity.
대표청구항▼
1. A valve assembly comprising: a closure element disposed in a flow control duct;a fluid-driven actuator assembly including a first piston disposed between a first pressure chamber and a second pressure chamber, and a shaft linked to the first piston, the shaft operable to translate linear movement
1. A valve assembly comprising: a closure element disposed in a flow control duct;a fluid-driven actuator assembly including a first piston disposed between a first pressure chamber and a second pressure chamber, and a shaft linked to the first piston, the shaft operable to translate linear movement of the first piston into rotation of the closure element;an actuator fluid supply passage extending between the flow control duct and the first pressure chamber; andan integral filter and pressure regulator unit disposed in line with the actuator fluid supply passage, the integral filter and pressure regulator unit including a regulator housing having at least one cylindrical wall surrounding a vent cavity and a regulator cavity, and filter media secured to the regulator housing and disposed across a regulator orifice in communication with the regulator cavity;wherein the regulator orifice is formed through an axial wall of the regulator housing adjacent the regulator cavity. 2. The valve assembly of claim 1, wherein the closure element comprises a disk. 3. The valve assembly of claim 1, wherein the fluid-driven actuator assembly also includes a second piston disposed between the second pressure chamber and a third pressure chamber, the first and second pistons linked by a connecting rod, and the connecting rod linked to the shaft. 4. The valve assembly of claim 1, wherein the regulator orifice includes at least one opening formed through a portion of the at least one cylindrical wall defining the regulator cavity. 5. An integral filter and pressure regulator unit comprising: a regulator housing having a first cylindrical wall portion defining a regulator cavity, and a second cylindrical wall portion defining a vent cavity in selective communication with the regulator cavity;a regulator inlet orifice and a regulator outlet orifice formed through the regulator housing proximate the first cylindrical wall portion;a regulator nozzle disposed axially between the vent cavity and the regulator cavity, the regulator nozzle having at least one regulator port providing selective communication between the vent cavity and the regulator cavity; andfirst filter media secured to a regulator side of the regulator housing and disposed across one of: the regulator inlet orifice and the regulator outlet orifice. 6. The pressure regulator unit of claim 5, wherein the first cylindrical portion has a first nominal diameter and the second cylindrical portion has a second nominal diameter larger than the first nominal diameter. 7. The pressure regulator unit of claim 5, wherein the vent cavity is longitudinally adjacent to the regulator cavity. 8. The pressure regulator unit of claim 5, further comprising: a ball disposed in the regulator nozzle; anda resilient element disposed in the vent cavity, the resilient element including a first end abutting a seat surface, and a second end receiving applying a closure force to bias the ball toward the at least one regulator port. 9. The pressure regulator unit of claim 8, wherein the closure force corresponds to a maximum regulator pressure in the regulator cavity. 10. The pressure regulator unit of claim 9, further comprising: an adjustment screw movable longitudinally within the vent cavity to vary a location of the seat surface,wherein the location of the seat surface defines a length of the resilient element and a resulting magnitude of the closure force. 11. The pressure regulator unit of claim 10, wherein at least one vent orifice is formed through the adjustment screw for directing fluid overboard from the vent cavity. 12. The pressure regulator unit of claim 5, further comprising: second filter media secured to the regulator housing and disposed across a second regulator orifice. 13. A bleed air control valve comprising: a closure disk rotatable within a flow control duct;a pneumatic actuator operable to drive rotation of the closure disk, the pneumatic actuator including a first piston disposed between a first pressure chamber and a second pressure chamber, and a second piston disposed between the second pressure chamber and a third pressure chambera connecting rod linking the first piston to the second piston;a shaft including a first end connected to the connecting rod and a second end connected to the closure disk, the shaft operable to translate linear movement of the first and second piston into rotation of the closure disk;an actuator fluid supply passage providing communication between an inlet side of the flow control duct and at least one of the first pressure chamber, the second pressure chamber, and the third pressure chamber;an integral filter and pressure regulator unit disposed in line with the actuator fluid supply passage, the unit having a cylindrical regulator cavity in selective communication with a cylindrical vent cavity, with filter media secured to the pressure regulator unit and disposed across at least one of a regulator inlet orifice and a regulator outlet orifice; anda regulator nozzle disposed axially between the vent cavity and the regulator cavity, the regulator nozzle having at least one regulator port providing selective communication between the vent cavity and the regulator cavity. 14. A valve assembly comprising: a closure element disposed in a flow control duct;a fluid-driven actuator assembly including a first piston disposed between a first pressure chamber and a second pressure chamber, and a shaft linked to the first piston, the shaft operable to translate linear movement of the first piston into rotation of the closure element;an actuator fluid supply passage extending between the flow control duct and the first pressure chamber; andan integral filter and pressure regulator unit disposed in line with the actuator fluid supply passage, the integral filter and pressure regulator unit including a regulator housing having at least one cylindrical wall surrounding a vent cavity and a regulator cavity, and filter media secured to the regulator housing and disposed across a regulator orifice in communication with the regulator cavity;wherein the pressure regulator unit also includes a regulator nozzle disposed in the vent cavity, the regulator nozzle having at least one regulator port in selective communication with the regulator cavity. 15. The valve assembly of claim 14, wherein the pressure regulator unit also includes a ball disposed in the regulator nozzle and a resilient element providing a closure force to bias the ball against the at least one regulator port. 16. The valve assembly of claim 15, wherein the resilient element reacts against a seat surface distal from the regulator cavity. 17. The valve assembly of claim 16, wherein the pressure regulator unit also includes an adjustment screw movable longitudinally within the vent cavity to vary a location of the seat surface, the location of the seat surface defining a length of the resilient element and a resulting magnitude of the closure force. 18. The valve assembly of claim 17, wherein the adjustment screw includes at least one vent orifice for ventilating excess fluid overboard from the vent cavity.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (2)
Sullivan Robert F. (Indianapolis IN), Bleed valve control circuit.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.