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1. (WO2018226451) FIXED CONE SLEEVE VALVE WITH FINGER EXTENSIONS ON SLEEVE GATE FOR CAVITATION SUPPRESSION AND MULTI-JET DISCHARGE MEMBER
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What is Claimed Is:

1 . A fixed cone sleeve valve comprising:

a valve housing having an upstream inlet and a downstream outlet:

a conically shaped valve body;

a sleeve gate having an upstream proximal end and a downstream distal end, the sleeve gate being movable relative to the conically shaped valve body between an open position in which the sleeve gate distal end is spaced from the conically shaped valve body to define a flow path for a flow of a liquid between the sleeve gate and the conically shaped valve body, and a closed position in which the sleeve gate engages the conically shaped valve body in a manner to close the flow path and prevent a flow of a liquid between the sleeve gate and the conically shaped valve body; and

an extension member extending radially outward and axially downstream from the downstream, distal end of the sleeve gate, the extension member having outer and inner surfaces with openings extending between the outer and inner surfaces, the extension member being arranged on the sleeve gate in a manner to allow communication through the openings into the flow path when the sleeve gate is in the open position.

2. The valve of claim 1 wherein the sleeve gate has a locator formed on an outer diameter of the sleeve gate distal end.

3. The valve of claim 2 wherein the locator comprises a recess.

4. The valve of claim 3 wherein the recess is tapered.

5. The valve of claim 2 wherein the extension member is mounted to the sleeve gate within the recess.

6. The valve of claim 1 wherein the extension member has a plurality of perforations.

7. The valve of claim 1 wherein the extension member comprises a plurality of axially extending slits circumferentially spaced about the extension member and extending through a downstream axial end of the extension member.

8. The valve of claim 1 wherein the sleeve gate is moveable along an inner surface of the valve upstream inlet.

9. The valve of claim 1 further comprising a conically shaped perforate member arranged axially downstream of the conically shaped valve body.

10. A fixed cone sleeve valve comprising:

a valve housing having an upstream inlet and a downstream outlet:

a conically shaped valve body;

a sleeve gate having a upstream proximal end and a downstream distal end, the sleeve gate being movable within the valve housing between an open position in which the sleeve gate distal end is spaced from the conically shaped valve body to define a flow path for a flow of a liquid between the sleeve gate and the conically shaped valve body, and a closed position in which the sleeve gate engages the conically shaped valve body in a manner to close the flow path and prevent a flow of a liquid between the sleeve gate and the conically shaped valve body; and

an extension member at the downstream distal end of the sleeve gate, the extension member having outer and inner surfaces with openings extending between the outer and inner surfaces, the inner surface in part defining the flow path of a liquid downstream of the sleeve gate when the sleeve gate is the open position, the extension member openings allowing communication from internal areas of the valve housing that are adjacent to the extension member outer surface into the flow path when the sleeve gate is in the open position.

1 1. The valve of claim 10 wherein the extension member has an annular support surface adjacent to the distal end of the sleeve gate.

12. The valve of claim 1 1 wherein the distal end of the sleeve gate has a circumferential recess.

13. The valve of claim 12 wherein the annular support portion is mounted within the recess of the distal end of the sleeve gate.

14. The valve of claim 1 1 wherein the annular support portion heat shrunk to the distal end of the sleeve gate.

15. The valve of claim 10 wherein the extension member has a portion that extends radially outward and axially downstream from the annular support surface.

16. The valve of claim 15 wherein the extension member has a plurality of perforations in the radially and axially extending portion.

17. The valve of claim 16 wherein the extension member comprises a plurality of axially extending slits circumferentially spaced about and extending through a downstream distal axial end of the radially and axially extending portion.

18. The valve of claim 17 wherein the plurality of axially extending slits circumferentially spaced about and extending through the distal axial end of the radially and axially extending portion of the extension member extend upstream to the annular support surface.

19. The valve of claim 10 wherein a curvilinear length of the radially and axially extending portion of the extension member is about 25 percent of a diameter of the sleeve gate.

20. The valve of claim 10 wherein a downstream distal edge of the annular support surface is upstream of the distal end of the sleeve gate.

21. The valve of claim 10 further comprising a conically shaped perforate member arranged axially downstream of the conically shaped valve body.