In one featured embodiment, a closure sleeve for a valve comprises a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end. The sleeve body has an internal cavity that is enclosed at the downstream end and is open at the upstream en
In one featured embodiment, a closure sleeve for a valve comprises a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end. The sleeve body has an internal cavity that is enclosed at the downstream end and is open at the upstream end. The internal cavity is defined in part by a piston contact surface that is defined by an inner diameter. The piston contact surface is configured to slide against a piston to be received within the internal cavity, and a ratio of the inner diameter to the overall length is between 1.0 and 1.5.
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1. A closure sleeve for a valve comprising: a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end, the internal ca
1. A closure sleeve for a valve comprising: a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end, the internal cavity being defined in part by a piston contact surface that is defined by a piston interface length and an inner diameter, wherein the piston contact surface is configured to slide against a piston to be received within the internal cavity, and wherein a ratio of the piston interface length to the inner diameter is between 1.0 and 1.5, andwherein the sleeve body includes at least one slot at the upstream end that comprises a nozzle attachment interface. 2. The closure sleeve according to claim 1 wherein the sleeve body comprises a single-piece component. 3. The closure sleeve according to claim 1 wherein the at least one slot is formed within and open to the upstream end, the slot being defined by a slot width that extends circumferentially about the axis and a slot length that extends in a direction substantially parallel to the axis, and wherein a ratio of the slot width to the slot length is between 1.0 and 2.5. 4. The closure sleeve according to claim 1 wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein the sleeve body includes an inner diameter, and wherein a ratio of the inner diameter to the window diameter is between 2.5 and 3.9. 5. The closure sleeve according to claim 1 wherein the at least one slot is formed within the upstream end, the slot being defined by a slot width that extends circumferentially about the axis and a slot depth that extends in a direction substantially parallel to the axis, and wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein a length from a center of the plurality of windows to a slot depth end face is between 0.1 inches and 0.4 inches. 6. The closure sleeve according to claim 1 wherein the sleeve body includes a plurality of windows axially spaced from the at least one slot. 7. The closure sleeve according to claim 6 wherein the at least one slot is open to the upstream end and is configured to receive a nozzle attachment portion to connect a nozzle to the sleeve body. 8. A closure sleeve for a valve comprising: a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end, wherein the sleeve body includes at least one slot formed within and open to the upstream end, the slot being defined by a slot width that extends circumferentially about the axis and a slot length that extends in a direction substantially parallel to the axis and extends axially to the upstream end, and a ratio of the slot width to the slot length is between 1.0 and 2.5. 9. The closure sleeve according to claim 8 wherein the internal cavity is defined in part by a piston contact surface that is defined by a piston interface length and an inner diameter, wherein the piston contact surface is configured to slide against a piston to be received within the internal cavity, and wherein a ratio of the piston interface length to the inner diameter is between 1.0 and 1.5. 10. The closure sleeve according to claim 8 wherein the sleeve body includes a plurality of windows that are axially spaced from the at least one slot, and wherein the windows are circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein the sleeve body includes a damping orifice extending outwardly from the piston contact surface to an outer surface of the sleeve body, the damping orifice being defined by an orifice diameter, and wherein a ratio of the orifice diameter to the window diameter is between 0.075 and 0.100. 11. A closure sleeve for a valve comprising: a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body comprises a single-piece component,wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end, wherein the internal cavity is defined in part by a piston contact surface that is defined by a piston interface length and an inner diameter, wherein the piston contact surface is configured to slide against a piston to be received within the internal cavity,wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein the plurality of windows are configured to be in fluid communication with a first external chamber, andwherein the sleeve body includes a damping orifice extending outwardly from the piston contact surface to an outer surface of the sleeve body, the damping orifice being defined by an orifice diameter, and wherein a ratio of the orifice diameter to the window diameter is between 0.075 and 0.100, and wherein the damping orifice is configured to be in fluid communication with a second external chamber that is separate from the first external chamber. 12. The closure sleeve according to claim 11 wherein a ratio of the piston interface length to the inner diameter is between 1.0 and 1.5, and wherein the first external chamber is at an outlet pressure and the second external chamber is at an input pressure. 13. The closure sleeve according to claim 11 wherein the sleeve body includes a retaining feature formed in the upstream end, the retaining feature configured to retain a nozzle component to the sleeve body to prevent axial separation therefrom, and wherein the retaining feature comprises at least one slot formed within the upstream end and axially spaced from the plurality of windows, the slot being defined by a slot width that extends circumferentially about the axis and a slot length that extends in a direction substantially parallel to the axis, and a ratio of the slot width to the slot length is between 1.0 and 2.5. 14. The closure sleeve for a valve according to claim 13 wherein the at least one slot is open to the upstream end to receive an extension formed on the nozzle component, and wherein the retaining feature further comprises a groove formed in the sleeve body to receive a fastener to prevent the nozzle component from separating from the sleeve body. 15. A closure sleeve and piston assembly for a valve comprising: a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end, and wherein the internal cavity is defined in part by a piston contact surface that is defined by an inner diameter, and wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter; anda piston received within the internal cavity, the piston having an inner bore that receives a spring assembly and a piston outer surface defined by a piston outer diameter that contacts the piston contact surface of the sleeve body in a sliding relationship, and wherein a ratio of the window diameter of the sleeve body to the piston outer diameter of the piston is between 0.3 and 0.5. 16. The closure sleeve and piston assembly according to claim 15 including at least one slot axially spaced from the plurality of windows. 17. The closure sleeve and piston assembly according to claim 15 wherein the sleeve body comprises a single-piece component. 18. A high pressure relief valve comprising: a valve housing defining an internal bore and having a valve inlet configured to be in fluid communication with a pump outlet;a closure sleeve at least partially received within the internal bore, the closure sleeve comprising a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end;a piston received within the internal cavity, wherein the internal cavity of the sleeve is defined in part by a piston contact surface that is defined by a piston interface length and an inner diameter, wherein the piston contact surface slides against an outer surface of the piston;a nozzle received within the internal bore of the valve housing and including a nozzle bore having a nozzle inlet in fluid communication with the valve inlet and a nozzle outlet, and wherein a nozzle bore diameter at the nozzle inlet is greater than a nozzle bore diameter at the nozzle outlet;a spring assembly that biases the piston to close the nozzle outlet, and wherein when a system pressure at the nozzle outlet exceeds a predetermined pressure level, a spring biasing load is overcome to open the nozzle outlet to fluidly connect the nozzle to the internal cavity of the closure sleeve; andwherein the high pressure relief valve includes one or more of the following valve characteristicswherein a ratio of the piston interface length to the inner diameter of the sleeve is between 1.0 and 1.5,wherein the sleeve body includes at least one slot formed within the upstream end, the slot being defined by a slot width that extends circumferentially about the axis and a slot length that extends in a direction substantially parallel to the axis, and wherein a ratio of the slot width to the slot length is between 1.0 and 2.0,wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein the sleeve body includes an inner diameter, and wherein a ratio of the inner diameter to the window diameter is between 2.5 and 3.9, orwherein a length from a center of the plurality of windows to a slot depth end face is between 0.1 inches and 0.4 inches. 19. A high pressure relief valve according to claim 18 wherein the outer surface of the piston is defined by a piston outer diameter that contacts the piston contact surface of the sleeve body in a sliding relationship, and wherein a ratio of the window diameter of the sleeve body to the piston outer diameter of the piston is between 0.3 and 0.5. 20. The high pressure relief valve according to claim 18 wherein the at least one slot is open to the upstream end. 21. The high pressure relief valve according to claim 20 wherein the at least one slot is configured to engage and retain the nozzle which is partially received within the internal cavity of the sleeve body and extends outwardly therefrom. 22. The high pressure relief valve according to claim 18 wherein the sleeve body includes the at least one slot and the plurality of windows, and wherein the plurality of windows are axially spaced from the at least one slot. 23. A fuel supply system incorporating: a fuel pump having a pump inlet and a pump outlet, the pump inlet being in fluid communication with a fuel supply;a metering valve receiving fuel from the fuel pump and directing the fuel to a gas turbine engine; anda high pressure relief valve upstream of the metering valve and downstream of the pump outlet, the high pressure relief valve being configured to move to an open position once system pressure downstream of the pump outlet exceeds a predetermined pressure level such the fuel can be returned to the pump inlet via the high pressure relief valve, and wherein the high pressure relief valve comprises a valve housing defining an internal bore and having a valve inlet configured to be in fluid communication with the pump outlet;a closure sleeve at least partially received within the internal bore, the closure sleeve comprising a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end;a piston received within the internal cavity, wherein the internal cavity is defined in part by a piston contact surface that is defined by a piston interface length and an inner diameter, wherein the piston contact surface slides against an outer surface of the piston;a nozzle received within the internal bore of the valve housing and including a nozzle bore having a nozzle inlet in fluid communication with the valve inlet and a nozzle outlet;a spring assembly that biases the piston to close the nozzle outlet, and wherein when a system pressure at the nozzle outlet exceeds a predetermined pressure level, a spring biasing load is overcome to open the nozzle outlet to fluidly connect the nozzle to the internal cavity of the closure sleeve; andwherein the high pressure relief valve includes one or more of the following valve characteristicswherein a ratio of the piston interface length to the inner diameter of the sleeve is between 1.0 and 1.5,wherein the sleeve body includes at least one slot formed within the upstream end, the slot being defined by a slot width that extends circumferentially about the axis and a slot length that extends in a direction substantially parallel to the axis, and wherein a ratio of the slot width to the slot length is between 1.0 and 2.5,wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein the sleeve body includes an inner diameter, and wherein a ratio of the inner diameter to the window diameter is between 2.5 and 3.9, orwherein a length from a center of the plurality of windows to a slot depth end face is between 0.1 inches and 0.4 inches. 24. A fuel supply system according to claim 20 wherein the outer surface of the piston is defined by a piston outer diameter that contacts the piston contact surface of the sleeve body in a sliding relationship, and wherein a ratio of the window diameter of the sleeve body to the piston outer diameter is between 0.3 and 0.5. 25. A method of replacing a component in a high pressure relief valve including the steps of: removing at least one of a closure sleeve or a piston from a valve housing and replacing the removed one of the closure sleeve or piston with a replaced closure sleeve or piston, wherein the valve housing defines an internal bore and has a valve inlet configured to be in fluid communication with a pump outlet, and wherein the closure sleeve is at least partially received within the internal bore, the closure sleeve comprising a sleeve body surrounding a center axis and defined by an overall length extending from an upstream end to a downstream end, wherein the sleeve body has an internal cavity that is enclosed at the downstream end and open at the upstream end, and wherein a piston is received within the internal cavity, wherein the internal cavity is defined in part by a piston contact surface that is defined by a piston interface length and an inner diameter, wherein the piston contact surface slides against an outer surface of the piston, and wherein a nozzle is received within the internal bore of the valve housing wherein the nozzle includes a nozzle bore having a nozzle inlet in fluid communication with the valve inlet and a nozzle outlet, and wherein a nozzle bore diameter at the nozzle inlet is greater than a nozzle bore diameter at the nozzle outlet, and wherein if the piston is removed and replaced, the replaced piston has the outer surface of the piston being defined by a piston outer diameter that contacts the piston contact surface of the sleeve body in a sliding relationship, and wherein a ratio of the window diameter of the sleeve body to the piston outer diameter of the piston is between 0.3 and 0.5, andwherein if the closure sleeve is removed and replaced, the replaced closure sleeve has one or more of the following valve characteristicswherein a ratio of the piston interface length to the inner diameter is between 1.0 and 1.5,wherein the sleeve body includes at least one slot formed within the upstream end, the slot being defined by a slot width that extends circumferentially about the axis and a slot length that extends in a direction substantially parallel to the axis, and wherein a ratio of the slot width to the slot length is between 1.0 and 2.5,wherein the sleeve body includes a plurality of windows circumferentially spaced apart from each other adjacent to the upstream end, each window being defined by a window diameter, and wherein the sleeve body includes an inner diameter, and wherein a ratio of the inner diameter to the window diameter is between 2.5 and 3.9, orwherein a length from a center of the plurality of windows to a slot depth end face is between 0.1 inches and 0.4 inches. 26. The method according to claim 25 wherein the at least one slot is open to the upstream end. 27. The method according to claim 26 wherein the at least one slot is configured to engage and retain the nozzle which is partially received within the internal cavity of the sleeve body and extends outwardly therefrom. 28. The method according to claim 25 wherein the sleeve body includes the at least one slot and the plurality of windows, and wherein the plurality of windows are axially spaced from the at least one slot.
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이 특허에 인용된 특허 (9)
Dyer Gerald P., Combined pressure regulating and fuel flow system.
Arline Samuel B. (Lake Park FL) Eder Matthias (Stuart FL) Dunlap Jeffrey J. (Stuart FL) Douglas Gary W. (Palm Beach Gardens FL), Fuel metering and actuation system.
Zemek Thomas G. (Mansfield CT) Caruolo Antonio B. (Vernon CT) Roberts Stephanie A. (Columbia SC) Dunn James K. (Columbia SC) Spearen John (Irmo SC), Method and apparatus for determining spring preloading in a fluid handling device.
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