Low noise fluid control valve
First Claim
1. A fluid control valve comprising:
- a valve body having a fluid passageway;
a cage mounted in said fluid passageway, said cage including a wall defining a cage bore having an axis, said cage defining one or more windows and a valve seat, each of said one or more windows comprising a plurality of slots each having a longitudinal axis, wherein the longitudinal axis of each of said slots is parallel to or tilted at a relatively small angle with respect to a reference plane that is perpendicular to the cage bore axis, said slots being axially spaced apart, wherein said slots in adjacent windows are tilted in opposite directions with respect to said reference plane; and
a valve plug assembly comprising a valve plug that is axially slidable in the cage bore.
1 Assignment
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Accused Products
Abstract
A fluid control valve includes a valve body having a fluid passageway, a cage mounted in the fluid passageway, the cage including a wall defining a cage bore having an axis, and a valve plug assembly including a valve plug that is axially slidable in the cage bore. The cage defines one or more windows and a valve seat. Each of the one or more windows includes a plurality of slots each having a longitudinal axis. The longitudinal axis of each of the slots is parallel to or tilted at a relatively small angle with respect to a reference plane that is perpendicular to the cage bore axis. The longitudinal axes of the slots are preferably oriented at an angle of about 0° to 15° with respect to the reference plane.
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Citations
24 Claims
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1. A fluid control valve comprising:
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a valve body having a fluid passageway;
a cage mounted in said fluid passageway, said cage including a wall defining a cage bore having an axis, said cage defining one or more windows and a valve seat, each of said one or more windows comprising a plurality of slots each having a longitudinal axis, wherein the longitudinal axis of each of said slots is parallel to or tilted at a relatively small angle with respect to a reference plane that is perpendicular to the cage bore axis, said slots being axially spaced apart, wherein said slots in adjacent windows are tilted in opposite directions with respect to said reference plane; and
a valve plug assembly comprising a valve plug that is axially slidable in the cage bore. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A valve cage for mounting in a fluid passageway of a fluid control valve, comprising:
a generally cylindrical wall defining a cage bore having an axis, said wall defining at least one window and a valve seat, said at least one window comprising a plurality of slots each having a longitudinal axis, wherein the longitudinal axis of each of said slots is parallel to or tilted at a relatively small angle with respect to a reference plane that is perpendicular to the cage bore axis, said slots being axially spaced apart, wherein said slots in adjacent windows are tilted in opposite directions with respect to said reference plane. - View Dependent Claims (19, 20, 21, 22, 23, 24)
Specification