Manifold for use with a pressure transmitter

• US 6,009,758 A
• Filed: 11/19/1997
• Issued: 01/04/2000
• Est. Priority Date: 12/08/1994
• Status: Expired due to Term

• Current Assignee: Rosemount Incorporated (Emerson Electric Company)
• Original Assignee: Rosemount Incorporated (Emerson Electric Company)
• Inventors: Broden, David A., Nelson, Scott D., Sundet, Paul C., Petrich, William E.
• Primary Examiner(s): FELBER, JOSEPH LEON
• Application Number:
  US08/974,614
• Time in Patent Office: 776 Days
• Field of Search: 73/756, 137/597, 137/884
• US Class Current: 73/756
• CPC Class Codes: F16K 27/0263 multiple way valves
• CPC Class Codes: G01L 19/0015 using switching means
• CPC Class Codes: Y10T 137/87249 Multiple inlet with multiple outlet
• CPC Class Codes: Y10T 137/87885 Sectional block structure

Abstract

A manifold includes a body having generally planar inlet surface. The inlet surface includes a first inlet and a second inlet adapted for coupling to a pressurized process fluid. An outlet surface on the manifold is adapted for coupling to a co-planar transmitter and is at angle relative to the inlet surface. The manifold includes an equalizing valve surface opposite the outlet surface, and a perimeter therebetween. The outlet surface includes first and second outlets in fluid communication with the first and second inlets, respectively.

Claims

1. A manifold for use with a pressure sensing transmitter for measuring pressure of a process fluid, the manifold comprising:

a manifold body including a first side member having an inlet surface and a cross member having an outlet surface, the outlet surface of the cross member adapted to directly mount to the pressure sensing transmitter, the first side member and cross member disposed at substantially a 90°

angle relative to each other;

first and second inlets on the first side member adapted for coupling to the process fluid;

first and second outlets on the outlet surface adapted for directly coupling to the pressure sensing transmitter;

passageways in the manifold body extending between and connecting the inlets and outlets; and

wherein the plane of the inlet surface is not parallel with the plane of the outlet surface.

2. The manifold of claim 1, wherein the plane of the inlet surface is substantially perpendicular to the plane of the outlet surface.

3. The manifold of claim 1 including a first equalization passageway coupled to the first outlet, a second equalization passageway coupled to the second outlet and an equalization chamber selectively coupling the first equalization passageway with the second equalization passageway.

4. The manifold of claim 3 wherein the equalization chamber is adapted to receive an equalization valve mounted on the cross member opposite the first and second outlets.

5. The manifold of claim 4 wherein the equalization valve has an axis, the first equalization passageway is substantially parallel with the axis and the second equalization passageway forms an acute angle with the axis.

6. The manifold of claim 3 and further comprising:

a first blocking chamber in a first blocking chamber plane and disposed within the cross-member wherein the first blocking chamber is in direct communication with the first inlet, first outlet, and equalization chamber; and

a second blocking chamber in a second blocking chamber plane and disposed within the cross-member wherein the second blocking chamber is in direct communication with the second inlet, second outlet, and the equalization chamber.

7. The manifold of claim 6 wherein the planes of the first and second blocking chambers are generally parallel to each other and generally perpendicular to the planes of the inlet surface and the outlet surface.

8. The manifold of claim 7 and further comprising:

a first vent chamber in a first vent plane and in communication with the first blocking chamber;

a second vent chamber in a second vent plane and in communication with the second blocking chamber; and

wherein the first and second vent chambers are disposed within the manifold body.

9. The manifold of claim 8 wherein the first and second vent planes are generally parallel to the planes of the first and second blocking chambers.

10. The manifold of claim 8 wherein the first and second vent planes are generally perpendicular to the planes of the first and second blocking chambers.

11. The manifold of claim 1 including a first and second equalization chamber wherein the first equalization chamber is in communication with the first outlet, and the second equalization chamber is in communication with the second outlet.

12. The manifold of claim 11 and further comprising a vent in communication with the first and second equalization chambers.

13. The manifold of claim 12:

wherein the first equalization chamber is adapted for accepting a first valve therein for selectively allowing communication between the first outlet and at least one of the second equalization chamber and the vent; and

wherein the second equalization chamber is adapted for accepting a second valve therein for selectively allowing communication between the second outlet and at least one of the first equalization chamber and the vent.

14. The manifold of claim 13 and further including a vent chamber disposed within the manifold body and in communication with the vent and first and second equalization chambers.

15. The manifold of claim 1 wherein spacing between the first and second outlets is in accordance with DIN spacing requirements.

16. The manifold of claim 1 wherein the spacing is about 5.4 centimeters between the first and second outlets.

17. The manifold of claim 1 wherein the spacing is about 5.4 centimeters between the first and second inlets.

18. The manifold of claim 1 including a second side member coupled to the cross member opposite the first side member.

19. The manifold of claim 18 including a first vent passageway extending from the first outlet to a first vent on the second side member and a second vent passageway extending from the second outlet to a second vent on the second side member.

20. The manifold of claim 18 wherein the first and second side members and the cross member form an "H" configuration.

21. The manifold of claim 1 and adapted to receive a valve wherein the valve is mounted on the cross member and has an axis substantially parallel with the plane of the outlet surface.

22. The manifold of claim 1 and adapted to receive a first valve for selectively allowing fluid communication between the first inlet and the first outlet.

23. The manifold of claim 22 and adapted to receive a second valve coupled to the passageways for selectively allowing fluid communication between the second inlets and the second outlets.

24. The manifold of claim 22 including an inlet passageway extending between the first inlet and the first valve and having an axis substantially parallel with an axis of the first valve and an outlet passageway extending between the first valve and the first outlet and having an axis which forms an acute angle with the axis of the first valve.

25. An H-manifold for use with a pressure sensing transmitter for measuring pressure of a process fluid, the H-manifold comprising:

an inlet face on an inlet portion having a first inlet for coupling to a first pressure source and a second inlet for coupling to a second pressure source;

a cross portion coupled to the inlet face having a mounting face for directly mounting the pressure sensing transmitter, the mounting surface substantially perpendicular to the inlet face, the mounting face including a first pressure outlet and a second pressure outlet;

an opposing face on an opposing portion coupled to the cross portion, opposite the inlet face, wherein the inlet face, cross portion and opposing face form an "H" configuration;

a first passageway extending between the first inlet and the first outlet; and

a second passageway extending between the second inlet and the second outlet.

26. The H-manifold of claim 25 including:

a first blocking chamber in communication with the first inlet and the first outlet, the first blocking chamber adapted to receive a first valve mounted on the cross portion for selectively coupling the first inlet to the first outlet; and

a second blocking chamber in communication with the second inlet and second outlet, the second blocking chamber adapted to receive a second valve mounted on the cross portion for selectively coupling the second inlet to the second outlet.

27. The H-manifold of claim 26, wherein the first and second valves have axes which are substantially parallel to a plane of the cross portion.

28. The manifold of claim 26 and further comprising an equalization chamber in communication with the first and second outlets.

29. The manifold of claim 28 wherein the equalization chamber is in direct communication with the first and second outlets.

30. The manifold of claim 28 and further including a vent in communication with the equalization chamber.

31. The manifold of claim 28 and further comprising a second equalization chamber in direct communication with the second outlet and the first equalization chamber.

32. The manifold of claim 31 wherein the first and second equalization chambers are each adapted for accepting a valve therein.

33. The manifold of claim 28 wherein the equalization chamber is adapted for accepting a valve therein.

34. The H-manifold of claim 25 including,

a first equalization passageway coupled to the first outlet;

a second equalization passageway coupled to the second outlet; and

an equalization chamber in communication with the first and second equalization passageways, wherein the equalization chamber is adapted to receive a valve coupled to the cross portion opposite the first and second outlets for selectively connecting the first and second equalization passageways.

35. The H-manifold of claim 34 wherein the equalization valve has an axis substantially perpendicular with the mounting face of the cross portion.

36. The H-manifold of claim 25 including:

a first vent passageway extending from the first outlet to a vent on the opposing portion; and

a second vent passageway extending from the second outlet to a vent on the opposing portion.

37. The H-manifold of claim 25 wherein the first and second outlets have DIN spacing.

38. The H-manifold of claim 25 wherein the opposing portion includes mounting holes for mounting to a support.

39. The H-manifold of claim 25 wherein the inlet portion includes mounting holes for mounting to a support stand.