High energy loss fluid control
First Claim
1. In a high energy loss flow control .[.device.]. .Iadd.valve including a reciprocal valve plug to regulate the quantity of fluid flowing therethrough .Iaddend.for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists .Iadd.such that heretofore cavitation, erosion and severe noise will occur.Iaddend.:
- a rigid structure comprising a stack of members having abutting faces enclosing therebetween a plurality of individual passageway grooves angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance losses to fluid flow therethrough .Iadd.to a degree that damaging cavitation, erosion and severe noise do not occur in said passageways.Iaddend.; and
means for compelling flow of the fluid through said passageways whereby potential energy will be dissipated and velocity of the fluid will be controlled.[...]..Iadd., said plug being in slidable contact with said stack of members, said inlet ends being positioned relative to said plug so they are selectively opened and closed to flow by the reciprocal action of said plug..Iaddend.
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Accused Products
Abstract
High energy loss fluid control is attained by subdividing flow of high pressure fluid into a plurality of individual streams in respective passageways having a long length to diameter ratio to impart high frictional resistance losses to the fluid flow, the passageways being in and between laminar surfaces and configurated along their lengths. For extremely high efficiency the passageways are in labyrinth formation.
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Citations
31 Claims
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1. In a high energy loss flow control .[.device.]. .Iadd.valve including a reciprocal valve plug to regulate the quantity of fluid flowing therethrough .Iaddend.for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists .Iadd.such that heretofore cavitation, erosion and severe noise will occur.Iaddend.:
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a rigid structure comprising a stack of members having abutting faces enclosing therebetween a plurality of individual passageway grooves angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance losses to fluid flow therethrough .Iadd.to a degree that damaging cavitation, erosion and severe noise do not occur in said passageways.Iaddend.; and means for compelling flow of the fluid through said passageways whereby potential energy will be dissipated and velocity of the fluid will be controlled.[...]..Iadd., said plug being in slidable contact with said stack of members, said inlet ends being positioned relative to said plug so they are selectively opened and closed to flow by the reciprocal action of said plug..Iaddend. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. In a high energy loss flow control .[.device.]. .Iadd.valve including a reciprocal plug to regulate the fluid flowing therethrough .Iaddend.for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists .Iadd.such that heretofore cavitation, erosion and severe noise will occur:
- .Iaddend.
a rigid structure comprising members having abutting faces and enclosing therebetween a plurality of individual passageways grooves each having at least one restriction and a succeeding abrupt expansion portion in its length between inlet and outlet ends thereof and each having an effective long length to diameter ratio to impart high frictional resistance losses to fluid flow therethrough.[.;
.]. .Iadd.to a degree that damaging cavitation, erosion and severe noise do not occur in said passageways .Iaddend.and means for compelling flow of the fluid into the inlet ends of said passageways .Iadd.whereby potential energy will be dissipated and velocity of the fluid will be controlled, said plug being in slidable contact with said members, said inlet ends being positioned relative to said plug so they are are selectively opened and closed to flow by the reciprocal action of said plug. .Iaddend..[.22. In a high energy loss fluid control device having means defining a fluid flow passage, the improvement of means in said passage subdividing and confining fluid flow through the passage into a plurality of individual passageways, each having a long length to diameter ratio and a substantial number of abrupt turns between the inlet and outlet ends thereof creating a frictional drag and pressure drop on fluid flowing therethrough to dissipate potential
- .Iaddend.
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22. energy of the fluid and control velocity of the fluid..]. 23. .[.The device of claim 22.]. .Iadd.In a high energy loss fluid control valve having means defining a fluid flow passage including a reciprocal valve plug to regulate the quantity of fluid flowing therethrough, the improvement of means in said passage subdividing and confining fluid flow through the passage comprising members having abutting faces enclosing a plurality of individual passageways, said individual passageways being arranged in said means so that there are a plurality of circumferentially spaced entrances of said passage ways on an axial level of said means, and a plurality of levels of said entrances, said plug in sliding contact with said members and all of said passageway entrances to selectively open and close said passageways to flow to thereby control the quantity of flow, each passageway having a long length to diameter ratio and a substantial number of abrupt turns between the inlet and outlet ends thereof creating a frictional drag and pressure drop on fluid flowing therethrough to dissipate potential energy of the fluid and control velocity of of the fluid to a degree that damaging cavitation, erosion and severe noise do not occur in said passageways, said improved second named means .Iaddend.wherein the passageways increase in flow area from the inlet to the outlet ends thereof to accommodate expansion of fluid as the pressure
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23. thereon is reduced. .Iadd.24. In a high energy loss flow control device for installation of a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists:
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a rigid annular structure comprising members having abutting faces and enclosing therebetween a plurality of fixed resistance individual passageway grooves in parallel flow at spaced positions, each passageway groove configurated along its length (1) to have at least one restriction and a succeeding abrupt expansion portion in its length between inlet and outlet ends thereof and (2) to have an effective long length to diameter ratio to impart fixed high frictional resistance losses to fluid flow therethrough to dissipate potential energy of the fluid and control velocity of the fluid to a degree that damaging cavitation, erosion and severe noise do not occur in said passageways; and means for compelling flow of the fluid into the inlet ends of said passageways, said means including a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, said rigid annular structure mounted in said housing and across said passage to compel all fluid flowing through said passage to travel therethrough, and a valve plug in controlling relation to said plurality of passageways at spaced positions movable reciprocably within said annular structure. .Iaddend.
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25. relation reciprocably within said annular structure..Iaddend. .Iadd.31. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of members having abutting faces enclosing therebetween a plurality of individual passageway grooves extending between the inner and outer perimeters of the annular structure and angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance losses to fluid flow therethrough, and means including a valve plug movable in controlling relation reciprocably within the annular structure for compelling flow of the fluid through the passageway grooves whereby potential energy of the fluid will be dissipated and velocity of the fluid will be controlled..Iaddend. .Iadd.32. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of discs having abutting faces enclosing therebetween a plurality of individual passageway grooves extending between the inner and outer circumferential walls of the structure, each passageway groove configurated along its length to be (1) angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and (2) to have an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance loses to fluid flow therethrough, and means including a valve plug movable in controlling relation reciprocably within the annular structure for selectively compelling flow of the fluid through the passageway grooves whereby potential energy of the fluid will be dissipated and velocity of the fluid
- 26. will be controlled..Iaddend. .Iadd.33. In a high energy loss fluid control device having means defining a fluid flow passage, the improvement of means in said passage subdividing and confining fluid flow through the passage into a plurality of individual passages, said last named means including a rigid annular structure comprising a stack of members having abutting faces forming axially separated rows of generally radially directed passageways extending between the inner and outer circumferential walls of the structure, the passageways of each row each having an effective long length to diameter ratio and a substantial number of abrupt turns between the inlet and outlet ends thereof creating a frictional drag and pressure drop on fluid flowing therethrough to dissipate potential energy of the fluid and control velocity of the fluid, and a valve plug movable in controlling relation reciprocably within the annular structure to selectively open and close the passageways of each row to flow of fluid therethrough..Iaddend. .Iadd.34. A device according to claim 33, wherein each of said passageways provides a labyrinth flow path progressively increasing in cross-sectional flow area from the inlet to the outlet ends..Iaddend. .Iadd.35. A device according to claim 33, wherein each of said passageways provides two restrictions and an abrupt expansion portion intermediate the restrictions between the inlet and outlet ends..Iaddend.
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27. Iadd.36. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of discs having abutting faces enclosing therebetween a plurality of individual passageway grooves extending between the inner and outer perimeters of the structure and angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance losses to fluid flow therethrough, and means including a valve plug movable in controlling relation reciprocably within the annular structure for selectively compelling flow of the fluid through the passageway grooves whereby potential energy of the fluid will be dissipated and velocity of the fluid will be controlled..Iaddend. .Iadd.37. A device according to claim 36, wherein each of said passageway grooves provides a labyrinth flow path progressively increasing in cross-sectional flow area from the inlet to the outlet ends..Iaddend.
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28. Iadd.38. A device according to claim 36, wherein each of said passageway grooves provides two restrictions and an abrupt expansion portion intermediate the restrictions between the inlet and outlet ends..Iaddend. .Iadd.39. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of members having abutting faces enclosing therebetween axially separated rows of individual passageway grooves extending between the inner and outer perimeters of the structure and angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet end thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance loses to fluid flow therethrough, and means for compelling flow of the fluid through the passageway grooves so that potential energy of the fluid will be dissipated and velocity of the fluid will be controlled, said last named means including a valve plug movable in controlling relation reciprocably within said annular structure to selectively open and close the passageway
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29. grooves of each row to flow of fluid therethrough..Iaddend. .Iadd.40. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of members having abutting faces enclosing therebetween a plurality of individual passageway grooves angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance losses to fluid flow therethrough, and means including a valve plug movable in controlling relation reciprocably within the annular structure for compelling flow of the fluid through the passsageway grooves whereby potential energy of the fluid will be dissipated and velocity of the fluid will be controlled.
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30. Iaddend. .Iadd.41. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of members having abutting faces enclosing therebetween axially separated rows of generally radially directed individual passageway grooves extending between the inner and outer circumferential walls of the structure and angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, the passageway grooves of each row each having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof to impart high frictional resistance losses to fluid flow therethrough, and means including a valve plug movable in controlling relation reciprocably with the annular structure for compelling flow of the fluid through the passageway grooves whereby potential energy of the fluid will be dissipated and velocity of the fluid will be
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31. controlled..Iaddend. .Iadd.42. In a high energy loss flow control device for installation in a fluid transfer system where a potentially destructive or noise generating fluid pressure differential exists, a valve housing having a fluid passage of substantial cross-sectional flow area therethrough, a rigid annular structure mounted in the housing and across the passage to compel all fluid flowing through the passage to travel therethrough, the structure comprising a stack of discs having abutting faces enclosing therebetween a plurality of individual passageway grooves extending between the inner and outer perimeters of the structure and angular between inlet and outlet ends thereof to turn the fluid and provide a substantially longer fluid flow length than the distance between the inlet and outlet ends thereof, and each passageway groove having an effective long length to diameter ratio cooperating with the angular turn-inducing configuration thereof in order that potential energy of the fluid will be dissipated and velocity of the fluid will be controlled, and means including a valve plug movable in controlling relation reciprocably within the annular structure for selectively compelling flow of the fluid through the passageway grooves. .Iaddend.
Specification