Method and system for high viscosity pump

• US 20090047143A1
• Filed: 07/14/2008
• Published: 02/19/2009
• Est. Priority Date: 11/21/2005
• Status: Active Grant

• Current Assignee: Entegris Incorporated
• Original Assignee: Entegris Incorporated
• Inventors: Stankowski, Ralph J., Cedrone, James, Gonnella, George, Gashgaee, Iraj
• Granted Patent: US 8,753,097 B2
• Time in Patent Office: Days
• US Class Current: 417/244
• CPC Class Codes: B01D 24/38 Feed or discharge devices
• CPC Class Codes: B01D 24/383 using multiple way valves
• CPC Class Codes: B01D 24/42 for discharging filtrate
• CPC Class Codes: B01D 24/4876 in which the filtering elements are moved between filtering operations; particular measures for removing or replacing the filtering elements B01D24/46, B01D24/4807 take precedence
• CPC Class Codes: B01D 29/39 with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
• CPC Class Codes: B01D 29/43 mounted otherwise than transversely on the tube mounted otherwise than axially on the tube
• CPC Class Codes: B01D 35/02 Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks, B01D35/05 takes precedence; water pipe system filters E03B3/18, E03B7/07; dirt catchers in sewers E03F; filters or strainers for pipe-lines in general B08B, E03F; object or dirt catching devices in sinks or the like E03C1/26; suction strainers or filters for pumps F04B53/005, F04D29/70
• CPC Class Codes: B01D 35/30 Filter housing constructions
• CPC Class Codes: B01D 39/2075 sintered or bonded by inorganic agents
• CPC Class Codes: F04B 15/02 the fluids being viscous or non-homogeneous
• CPC Class Codes: F04B 2205/14 Viscosity
• CPC Class Codes: F04B 25/00 Multi-stage pumps
• CPC Class Codes: F04B 25/005 with two cylinders
• CPC Class Codes: F04B 39/16 Filtration; Moisture separation
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 53/20 Filtering
• CPC Class Codes: Y10T 137/87885 Sectional block structure

Abstract

Embodiments described herein provide systems and methods for high viscosity pumps including a noncompliant filter. One embodiment can include a multi-stage pump comprising an pump inlet flow path, a pump outlet flow path, a feed stage in fluid communication with the pump inlet flow path, a dispense stage in fluid communication with the feed stage and the pump outlet flow path, a noncompliant disposable filter for high viscosity fluid in a flow path between the feed stage and the dispense stage and a set of valves to selectively allow fluid flow through the multi-stage pump.

Claims

1. A multi-stage pump comprising:

an pump inlet flow path;

a pump outlet flow path;

a feed stage in fluid communication with the pump inlet flow path;

a dispense stage in fluid communication with the feed stage and the pump outlet flow path;

a noncompliant disposable filter for high viscosity fluid in a flow path between the feed stage and the dispense stage; and

a set of valves to selectively allow fluid flow through the multi-stage pump.

2. The multi-stage pump of claim 1, wherein the multi-stage pump is noncompliant.

3. The multi-stage pump of claim 1, wherein the multi-stage pump comprises a unitary dispense block defining a feed chamber for the feed stage and a dispense chamber for the dispense stage.

4. The multi-stage pump of claim 3, wherein the dispense block further defines a first flow path section from the feed chamber to a first filter port and a second flow path section from a second filter port to the dispense chamber.

5. The multi-stage pump of claim 4, wherein the dispense block further defines a flow path from a third filter port to an outlet.

6. The multi-stage pump of claim 1, wherein the multi-stage pump comprises a quick change manifold for the filter and the filter is compatible with the quick change manifold.

7. The multi-stage pump of claim 1, wherein the disposable filter exhibits less than a 2 mL change in volume at 65 psi.

8. The multi-stage pump of claim 1, wherein the disposable filter exhibits less than a 1.5 mL change in volume at 65 psi.

9. The multi-stage pump of claim 1, wherein the disposable filter exhibits less than a 0.5 mL change in volume at 65 psi.

10. The multi-stage pump of claim 1, wherein the disposable filter comprises a bowl portion at least partially defining a filter cavity.

11. The multi-stage pump of claim 10, wherein the bowl portion comprises at least one sidewall.

12. The multi-stage pump of claim 11, wherein the at least one sidewall is at least 0.375 inches thick.

13. The multi-stage pump of claim 10, wherein the bowl portion comprises a curved bottom portion.

14. The multi-stage pump of claim 10, wherein the bowl portion comprises:

an inner portion; and

an outer portion, wherein the inner portion and the outer portion form at least one sidewall of the filter cavity.

15. The multi-stage pump of claim 10, wherein the disposable filter further comprises a reinforcing structure positioned to reduce compliance of the bowl portion.

16. The multi-stage pump of claim 1, wherein the filter comprises a head portion at least partially defining a filter cavity sized and shaped to interface with complementary ports.

17. The multi-stage pump of claim 16, wherein the head portion defines an inlet port, an outlet port and a vent port.

18. The multi-stage pump of claim 17, wherein the head portion comprises a curved top surface at least partially defining the filter cavity.

19. The multi-stage pump of claim 18, wherein the curved top surface is angled upwards toward the vent port when the filter is installed.

20. The multi-stage pump of claim 16, wherein the head portion comprises a set of ribs to reduce deflection.

21. The multi-stage pump of claim 16, wherein the head portion comprises a device identification portion shaped and sized to receive an identification device.

22. The multi-stage pump of claim 21, further comprising a wireless identification device disposed in the device identification portion.

23. The multi-stage pump of claim 1, wherein the multi-stage pump is configured to exhibit less than a 2% change in rated volume at 250 psi.

37. The disposable filter of claim 21, further comprising a wireless identification device disposed in the device identification portion.

24. A disposable filter comprising:

a head portion defining an inlet port, an outlet port and a vent port and sized and shaped to be compatible with a quick change manifold;

a bowl portion coupled to the head portion, the head portion and the bowl portion at least partially defining a filter cavity and forming a noncompliant filter housing;

a high viscosity filter cartridge disposed in the filter cavity, the filter cartridge having a filter cartridge outlet in fluid communication with the outlet port; and

wherein the disposable filter is adapted for use with a multi-stage pump for pumping high viscosity fluid.

25. The disposable filter of claim 24, wherein the filter housing exhibits less than a 2 mL change in volume at 250 psi.

26. The disposable filter of claim 24, wherein the filter housing exhibits less than a 1.5 mL change in volume at 250 psi.

27. The disposable filter of claim 24, wherein the filter housing exhibits less than a 0.5 mL change in volume at 250 psi.

28. The disposable filter of claim 24, wherein the bowl portion comprises at least one sidewall.

29. The disposable filter of claim 28, wherein the at least one sidewall is at least 0.375 inches thick.

30. The disposable filter of claim 24, wherein the bowl portion comprises a curved bottom portion.

31. The disposable filter of claim 24, wherein the bowl portion comprises:

an inner portion; and

an outer portion, wherein the inner portion and the outer portion form at least one sidewall of the filter cavity.

32. The disposable filter of claim 24, wherein the disposable filter further comprises a reinforcing structure positioned to reduce compliance of the bowl portion.

33. The disposable filter of claim 24, wherein the head portion comprises a curved top surface at least partially defining the filter cavity.

34. The disposable filter of claim 33, wherein the curved top surface is angled upwards toward the vent port when the filter is installed.

35. The disposable filter of claim 34, wherein the head portion comprises a set of ribs to reduce deflection of the top surface.

36. The disposable filter of claim 24, wherein the head portion comprises a device identification portion shaped and sized to receive an identification device.

38. A disposable filter comprising:

a head portion defining an inlet port, an outlet port and a vent port and sized and shaped to be compatible with a quick change manifold, the head portion comprising;

a curved top surface sloped towards the vent port;

a set of ribs to reduce deflection of the curved top surface;

a bowl portion coupled to the head portion, the bowl portion comprising;

a cylindrical sidewall;

a curved bottom portion;

wherein top surface, sidewall and bottom portion define a filter cavity and wherein the head portion and bowl portion form a noncompliant filter housing;

a high viscosity filter cartridge disposed in the filter cavity and coupled to the head portion, the filter cartridge having a filter cartridge outlet in fluid communication with an outlet port of the head portion; and

wherein the disposable filter is adapted for use with a multi-stage pump for pumping high viscosity fluid.