Process for manufacturing valve trim assemblies

• US 6,718,633 B1
• Filed: 03/14/2003
• Issued: 04/13/2004
• Est. Priority Date: 03/14/2003
• Status: Active Grant

• Current Assignee: Flowserve Management Company (Flowserve Corporation)
• Original Assignee: Flowserve Management Company (Flowserve Corporation)
• Inventors: Glenn, Alan Holton, Thurston, Kenneth Alden
• Primary Examiner(s): ROSENBAUM, IRENE CUDA
• Application Number:
  US10/389,225
• Time in Patent Office: 396 Days
• Field of Search: 298/901.2, 298/901.24, 298/901.26, 298/901.29, 298/901.28, 298/901.3, 298/901.32, 295/57, 295/58, 294/28, 138/42, 138/40, 137/625.3, 137/625.33, 251/127
• US Class Current: 29/890.124
• CPC Class Codes: F16K 47/08 for decreasing pressure or noise level and having a throttling member separate from the closure member , e.g. screens, slots, labyrinths
• CPC Class Codes: Y10T 137/86734 With metering feature
• CPC Class Codes: Y10T 29/49405 Valve or choke making
• CPC Class Codes: Y10T 29/49412 with assembly, disassembly or composite article making
• CPC Class Codes: Y10T 29/49426 including metal shaping and diverse operation

Abstract

A process for manufacturing a valve trim assembly. The process comprises providing a flow disk having an outer diameter, an inner diameter, and an outer disposable flow disk portion, providing a separation disk having an outer diameter and an inner diameter, wherein the flow disk outer diameter is greater than the separation disk outer diameter, stacking the flow disk on the separation disk, and removing the outer disposable flow disk portion creating a reduced flow disk outer diameter. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 C.F.R. §1.72(b).

Claims

1. A process for manufacturing a valve trim assembly comprising:

providing a flow disk having an outer diameter, an inner diameter, and an outer disposable flow disk portion;

providing a separation disk having an outer diameter and an inner diameter, wherein said flow disk outer diameter is greater than said separation disk outer diameter;

stacking said flow disk on said separation disk; and

removing said outer disposable flow disk portion creating a reduced flow disk outer diameter.

2. The process of claim 1 wherein said reduced flow disk outer diameter is at least equal to said separation disk outer diameter.

3. The process of claim 1 further comprising securing said flow disk to said separation disk prior to removing said outer disposable flow disk portion.

4. The process of claim 3 further comprising securing said flow disk to said separation disk by an operation selected from brazing, gluing, clamping, and combinations thereof.

5. The process of claim 1 further comprising removing said outer disposable flow disk portion by an operation selected from machining, laser cutting, and combinations thereof.

6. The process of claim 1 wherein said flow disk is provided with a plurality of outlet passages, wherein each outlet passage has a terminal end, and wherein said terminal end does not extend to said flow disk outer diameter.

7. The process of claim 6 wherein said outlet passages are tapered.

8. The process of claim 7 wherein said tapered outlet passages comprise frequency shifting passages.

9. The process of claim 6 wherein said outlet passages are in fluid communication with a tortuous flow path.

10. The process of claim 6 wherein said outlet passages are in fluid communication with an acoustic chamber.

11. The process of claim 6 wherein said outer disposable flow disk portion is removed at least as far as said terminal end of said outlet passages creating a reduced flow disk outer diameter that transects said outlet passages, thereby creating a flow disk island between adjacent outlet passages.

12. The process of claim 11 further comprising securing said flow disk to said separation disk such that said flow disk island is secured to said separation disk.

13. The process of claim 1 further comprising stacking an additional disk adjacent to said flow disk to form said valve trim assembly, wherein said additional disk is selected from a separation disk, a top disk, and a bottom disk.

14. The process of claim 13 further comprising securing said additional disk to said flow disk by an operation selected from brazing, gluing, clamping, and combinations thereof.

15. The process of claim 1 wherein said flow disk further comprises an inner disposable flow disk portion.

16. The process of claim 15 further comprising removing said inner disposable flow disk portion creating a reduced flow disk inner diameter.

17. The process of claim 16 wherein said reduced flow disk inner diameter is less than or equal to said separation disk inner diameter.

18. The process of claim 16 further comprising securing said flow disk to said separation disk prior to removing said inner disposable flow disk portion.

19. The process of claim 18 further comprising securing said flow disk to said separation disk by an operation selected from brazing, gluing, clamping, and combinations thereof.

20. The process of claim 16 further comprising removing said inner disposable flow disk portion by an operation selected from machining, laser cutting, and combinations thereof.

21. The process of claim 1 wherein said flow disk inner diameter is greater than or equal to said separation disk inner diameter.

22. A process for manufacturing a valve trim assembly comprising:

providing a flow disk having an outer diameter, an inner diameter, an outer disposable flow disk portion, and a plurality of outlet passages, wherein each outlet passage has a terminal end, and wherein said terminal end does not extend to said flow disk outer diameter;

providing a separation disk having an outer diameter and an inner diameter, wherein said flow disk outer diameter is greater than said separation disk outer diameter, and wherein said flow disk inner diameter is greater than or equal to said separation disk inner diameter;

stacking said flow disk on said separation disk;

securing said flow disk to said separation disk;

removing said outer disposable flow disk portion at least as far as said terminal end of said outlet passages creating a reduced flow disk outer diameter that transects said outlet passages, thereby creating a flow disk island between adjacent outlet passages; and

stacking an additional disk adjacent to said flow disk to form said valve trim assembly, wherein said additional disk is selected from a separation disk, a top disk, and a bottom disk.

23. A process for manufacturing a valve trim assembly comprising:

providing a flow disk having an outer diameter, an inner diameter, an outer disposable flow disk portion, an inner disposable flow disk portion, and a plurality of outlet passages, wherein each outlet passage has a terminal end, and wherein said terminal end does not extend to said flow disk outer diameter;

providing a separation disk having an outer diameter and an inner diameter, wherein said flow disk outer diameter is greater than said separation disk outer diameter, and wherein said flow disk inner diameter is less than said separation disk inner diameter;

stacking said flow disk on said separation disk;

securing said flow disk to said separation disk;

removing said outer disposable flow disk portion at least as far as said terminal end of said outlet passages creating a reduced flow disk outer diameter that transects said outlet passages, thereby creating a flow disk island between adjacent outlet passages;

removing said inner disposable flow disk portion creating a reduced flow disk inner diameter that is less than or equal to said separation disk inner diameter; and

stacking an additional disk adjacent to said flow disk to form said valve trim assembly, wherein said additional disk is selected from a separation disk, a top disk, and a bottom disk.

24. A process for manufacturing a valve trim assembly comprising:

providing a flow disk having an outer diameter, an inner diameter, an outer disposable flow disk portion, and a plurality of outlet passages,

wherein each outlet passage has a terminal end,

wherein said terminal end does not extend to said flow disk outer diameter, and

wherein said outlet passages are in fluid communication with an acoustic chamber;

providing a separation disk having an outer diameter and an inner diameter, wherein said flow disk outer diameter is greater than said separation disk outer diameter, and wherein said flow disk inner diameter is greater than or equal to said separation disk inner diameter;

stacking said flow disk on said separation disk;

securing said flow disk to said separation disk;

removing said outer disposable flow disk portion at least as far as said terminal end of said outlet passages creating a reduced flow disk outer diameter that transects said outlet passages, thereby creating a flow disk island between adjacent outlet passages; and

stacking an additional disk adjacent to said flow disk to form said valve trim assembly, wherein said additional disk is selected from a separation disk, a top disk, and a bottom disk.

25. A process for manufacturing a valve trim assembly comprising:

providing a flow disk having an outer diameter, an inner diameter, an outer disposable flow disk portion, an inner disposable flow disk portion, and a plurality of outlet passages,

wherein each outlet passage has a terminal end,

wherein said terminal end does not extend to said flow disk outer diameter, and

wherein said outlet passages are in fluid communication with an acoustic chamber;

providing a separation disk having an outer diameter and an inner diameter, wherein said flow disk outer diameter is greater than said separation disk outer diameter, and wherein said flow disk inner diameter is less than said separation disk inner diameter;

stacking said flow disk on said separation disk;

securing said flow disk to said separation disk;

removing said outer disposable flow disk portion at least as far as said terminal end of said outlet passages creating a reduced flow disk outer diameter that transects said outlet passages, thereby creating a flow disk island between adjacent outlet passages;

removing said inner disposable flow disk portion creating a reduced flow disk inner diameter that is less than or equal to said separation disk inner diameter; and

stacking an additional disk adjacent to said flow disk to form said valve trim assembly, wherein said additional disk is selected from a separation disk, a top disk, and a bottom disk.